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15 Exciting SQL Project Ideas & Topics With Source Code For Beginners [2024]

Updated on 10 July, 2024

315.74K+ views
22 min read
SQL Project Ideas & Topics With Source Code

Summary:

In this Article, you will learn 15 exciting SQL project ideas & topics for beginners.

  1. Library Management System
  2. Centralized College Database
  3. Student Database Management
  4. Online Retail Application Database
  5. Inventory Control Management
  6. Hospital Management System
  7. Railway System Database
  8. Payroll Management System
  9. An SMS-based Remote Server Monitoring System
  10. Blood Donation Database
  11. Art Gallery Management Database
  12. Cooking Recipe Portal
  13. Carbon Emissions Calculator
  14. A Voice-based Transport Enquiry System
  15. Database Interfacing for LabVIEW Robotic Control

Read more to know each in detail.

The modern business world has experienced an upsurge in data-driven decision making in the last few years. And extracting and filtering out crucial information from data silos is made easy with programming languages like SQL. One of the multiple reasons to learn SQL. Moreover, SQL databases are used in almost every website or web application today. As computer science students or aspiring developers, you are always on the lookout for easy-to-implement SQL project ideas. Finding unique and impressive sql projects for beginners with source code can require heavy brainstorming. So, we have compiled some interesting ones for you below.

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When you build and design a database with real-life applicability, it will not only refine your conceptual understanding but also boost your problem-solving skills. So, hone your skills and upstart your career by implementing the following sql projects with source code! while starting a career.

What is SQL?

SQL means Structured Query Language. It’s a domain specific programming language that helps control and handle relational databases. SQL offers a uniform way to communicate with databases, allowing learners to perform numerous tasks like querying data, updating records, inserting new data, and more. Relational databases serve data as tables that include rows and columns.

Features of SQL

It offers a wide range of features that enable users to interact with databases effectively. Here are some key features of SQL:

  • Data Querying and Retrieval

SQL’s primary function is data retrieval. It allows users to write queries that retrieve specific data from one or multiple tables. The SELECT statement, a core SQL feature, enables users to filter, sort, and extract relevant data based on specified conditions.

  • Data Manipulation

SQL facilitates the manipulation of data within databases. Users can insert new records using the INSERT statement, update existing records with the UPDATE statement, and remove records using the DELETE statement. These commands ensure efficient data management.

  • Data Definition

SQL provides commands for defining and managing the structure of a database. The CREATE TABLE statement defines tables, specifying columns, data types, and constraints. Users can also modify tables using ALTER TABLE and delete tables using DROP TABLE.

  • Data Integrity and Constraints

SQL supports various constraints to maintain data integrity. The UNIQUE constraint ensures the uniqueness of values in a column; the PRIMARY KEY constraint designates a unique identifier for each record; the FOREIGN KEY constraint establishes relationships between tables, and the NOT NULL constraint enforces non-null values.

  • Data Joins and Relationships

SQL enables users to combine data from multiple tables using JOIN operations. Different types of JOINs, such as INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN, allow users to retrieve related data efficiently. These operations help establish relationships between tables.

  • Aggregation and Grouping

SQL provides aggregate functions like SUM, AVG, COUNT, MIN, and MAX to perform calculations on data sets. The GROUP BY clause groups data based on one or more columns, and the HAVING clause filters grouped data according to specified conditions.

  • Subqueries

Subqueries, known as nested queries, allow users to embed one query within another. This feature is useful for retrieving data from one table based on conditions derived from another table. Subqueries can be employed in SELECT, UPDATE, and DELETE statements.

  • Views

SQL allows users to create virtual tables known as views. A view is based on the result of a query and presents data in a customized format without altering the original data. Views can simplify complex queries, enhance data security, and provide a consistent interface to users.

  • Transactions and Concurrency Control

SQL supports transaction management, which ensures that a series of operations are treated as a single unit of work. This maintains data consistency and integrity. Users can use BEGIN, COMMIT, and ROLLBACK statements to manage transactions effectively.

  • Access Control and Security

SQL enables administrators to define user roles, permissions, and access levels. This feature ensures users can only perform authorized operations on specific database objects. The GRANT and REVOKE statements control access privileges.

  • Database Portability

SQL is largely standardized, allowing users to write queries across different relational database management systems (RDBMS). At the same time, variations in syntax exist among RDBMS implementations, and SQL’s core concSQL remains consistent.

  • Procedural Language Extensions

Some RDBMS implementations offer procedural language extensions, such as PL/SQL for Oracle and T-SQL for Microsoft SQL Server. These extensions allow users to write procedural code within SQL, enabling the creation of stored procedures, functions, and triggers.

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15 Top SQL Project Ideas For Resume & Portfolio

Impressive SQL projects for resume are vital to strengthen your resume as a beginner. Here are some beginner-friendly SQL topics for you to choose from. 

These projects showcase your hands-on experience, making you stand out to potential employers. SQL projects for data analysis, database design, and query optimization can demonstrate your versatility and proficiency in SQL. Some of these suggestions are SQL projects with source code and DBMS projects using SQL with source. 

1. Library Management System

An online library management system offers a user-friendly way of issuing books and also viewing different books and titles available under a category. This type of Management Information System (MIS) can be easily developed in Asp.Net using C#. And SQL queries enable quick retrieval of the required information.  

Take the example of your college library, where both teachers and students can issue books. Usually, the number of days within which you have to return the book varies for both the groups. Also, each book has a unique ID, even if they are copies of the same book by the same author. So, a library management system has an entry for every book, capturing who has issued it, the issue duration, and the amount of fine, if any.

For beginners, SQL based projects like these offer invaluable real-world applications, allowing them to gain hands-on experience in database design principles, including table relationships, normalization, and effective data storage. Additionally, it provides an opportunity to understand transaction management concepts by tracking book-related activities. 

The SQL project allows beginners to enhance their problem-solving skills as beginners address specific challenges inherent in library management through the application of SQL queries.

Source Code: Library Management System

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2. Centralized College Database

A college has academic departments, such as the Department of English, Department of Mathematics, Department of History, and so on. And each department offers a variety of courses. Now, an instructor can teach more than one course. Let’s say a professor takes a class on Statistics and also on Calculus.

As a student in the Mathematics department, you can enroll in both of these courses. Therefore, every college course can have any number of students. Here, an important point to note is that a particular course can have only one instructor to avoid overlaps. 

All in all, the Centralized College Database project in SQL is about creating a system to manage student records, courses, and faculty details in a college. Beginners should consider this SQL project because it offers hands-on experience in designing a database for a real-world scenario. It helps understand how different pieces in a college (like students, courses, and faculty) are connected, and how to use SQL to get useful information. 

This practical experience boosts skills in database design and problem-solving, making it a great project for beginners to learn from.

Source Code: Centralized College Database

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3. Student Database Management

Similarly, you can do a student record-keeping project. The database would contain general student information (such as name, address, contact information, admission year, courses, etc.), attendance file, marks or result file, fee file, scholarship file, etc. An automated student database streamlines the university administration process to a considerable degree. 

SQL projects like these are ideal as they provides hands-on experience in organizing and querying data. It allows beginner-level learners to practice fundamental SQL skills, including creating tables, inserting data, and performing searches. 

Managing a student database is a relatable and practical way for beginners to learn SQL, helping them build a strong foundation for more complex projects in the future.

Source Code: Student Database Management

Read: SQL Interview Questions & Answers

4. Online Retail Application Database

As e-commerce experiences remarkable growth around the world, online retail application databases are among the most popular SQL project ideas. The application allows the customer to register and buy an item using the internet. The registration process typically involves the generation of a unique customer ID and password and in many cases, consolidates information like Name, Address, Contact Information, Bank details, etc.

Once a user purchases a product, a bill is generated based on the quantity, price, and discount, if any. The customer has to choose a payment method to settle the transaction before it is delivered to the selected location. 

SQL based projects like these can be highly beneficial for beginners as they offer practical exposure to e-commerce-related database management. It allows newcomers to apply their SQL knowledge to real-time scenarios like tracking inventory, handling customer orders, and analyzing sales trends. 

This hands-on experience helps beginners grasp fundamental database concepts, enhancing their understanding of SQL while working on a project that mirrors real-world online retail scenarios.

Source Code: Online Retail Application Database

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5. Inventory Control Management

Inventory control is the process of ensuring that a business maintains an adequate stock of materials and products to meet customer demands without delay. Both overstocking and understocking situations are undesirable, and the aim is to maximize profitability by keeping inventory at the optimum level. 

Also Read: SQL for Data Science

Therefore, the design goals of an inventory control management database would focus on holding the required items, increasing inventory turnover, retaining safety stock levels, obtaining raw materials at lower costs, bringing down storage costs, reducing insurance costs, etc. 

Such SQL real time projects are great for beginner-level learners as it enables them to handle practical business scenarios with tactfulness. Beginners can develop essential SQL skills by designing a database that addresses inventory-related challenges, such as monitoring stock levels, updating product information, and managing supplier relationships. 

This project not only enhances SQL proficiency but also instills a practical understanding of how databases play a crucial role in inventory control and business operations.

6. Hospital Management System

It is a web-based system or software that enables you to manage the functioning of a hospital or any other medical setup. It creates a systematic and standardized record of patients, doctors, and rooms, which can be controlled only by the administrator. All patients and doctors will have a unique and will be related in the database depending on the ongoing treatments. Also, there will be separate modules for hospital admission, patients’ discharge summary, duties of nurses and ward boys, medical stores, etc.

The Hospital Management System is one of the best SQL projects for practice because it involves setting up a database to handle hospital-related stuff like patient records, appointments, and doctor details. It’s one of the best projects because it covers a lot of different information, helping beginners understand how to organize and manage complex data. 

By working on this project, beginners get real-time experience dealing with the kinds of challenges you’d find in a real hospital, like keeping track of patients and appointments. It’s a practical and interesting way to learn SQL skills that are useful in the healthcare world.

Source Code: Hospital Management System

7. Railway System Database

In this database system, you need to model different train stations, railway tracks between connecting stations, the train details (a unique number for each train), rail routes and schedule of the trains, and passenger booking information. To simplify your project, you can assume that all the trains run every day and have only a one-day journey to their respective destinations. As for recording, you can focus on storing the following details for each station on a rail route: 

  • In time: When the train arrives at a station
  • Out time: When the train leaves a station (This would be the same as in-time if the train does not halt at a station)
  • Station’s sequential number: The order of the station in the route

For beginners, these DBMS projects using SQL provide an excellent learning opportunity as they involve dealing with interconnected data and simulate the challenges faced in the logistics of a railway system. Managing train schedules, handling passenger information, and ensuring accurate bookings all require the application of fundamental SQL skills. 

Working on this project will enhance your problem-solving abilities, critical for addressing the inner workings and complexities of how the transport system works.

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8. Payroll Management System

It is one of the most preferred SQL database project ideas due to its extensive usage across industries. An organization’s salary management system calculates the monthly pay, taxes, and social security of its employees. It computes the salaries using employee data (name, designation, pay scale, benefits, etc.) and attendance records, including the leaves taken.

Then, based on certain formulas, the software generates output in the form of bank files and salary slips. Similarly, a tax file is created for the tax office and stored in the database. 

The Payroll Management System is an excellent DBMS project using SQL, renowned for its real-world applicability in businesses. It involves creating a database to efficiently handle employee payroll details, fostering a deep understanding of database design and management. 

This project stands out by requiring complex SQL queries for payroll calculations and report generation, pushing learners to advance their SQL skills. The practical challenges embedded in managing payroll, including tax calculations and benefits administration, cultivate problem-solving skills. Overall, the project bears real-world relevance and specializes in comprehensive data management. It also promotes understanding of SQL query complexities. This makes practical problem-solving makes it a standout choice for learners seeking robust DBMS projects using SQL.

Source Code: Payroll Management System

Also read: Full Stack Development Project Ideas

9. An SMS-based Remote Server Monitoring System

Such systems are particularly beneficial for large corporate organizations having massive data centers and multiple servers. Since these servers host a large number of applications, it becomes tricky to monitor their functionality. Usually, when a server is down or has crashed, the clients inform the organization about it.

To avoid delays in corrective actions, you need a web-based solution that can remotely keep a check on these server failures. Such an application would periodically ping the servers based on predetermined rules, and then send an SMS to a predetermined list of specialists in case a server is found non-functional. This message would contain specific details about the server, the time of failure, etc. 

It is considered one of the top DBMS project ideas using SQL due to its innovative nature and practical applications. It integrates database management with real-time monitoring through SMS, showcasing an innovative use of technology. It allows learners to explore how databases can be utilized for remote server monitoring, reflecting modern and practical applications.

Furthermore, it teaches learners how to develop a database that supports server monitoring, allowing learners to focus on securing data and creating effective alert mechanisms and brushing up on problem-solving skills.

Source Code: An SMS-based Remote Server Monitoring System

10. Blood Donation Database

Creating a Blood Donation Database is one of the most valuable database projects for students in SQL. This project involves designing a database to manage information related to blood donors, blood banks, and blood donations.

This database would store interrelated data on patients, blood donors, and blood banks. You can take a cue from the data points given below. 

  • Patient’s Name, Unique ID, Blood group, and Disease
  • Donor’s Name, Unique ID, Blood Group, Medical Report, Address, Contact Number
  • Blood bank’s Name, Address, Blood banks’ donor details (name, address, contact number)

Now, try to implement the same in a database by creating a schema, an Entity-Relationship (E-R) diagram, and then attempt normalizing it.

Managing information related to blood donation in a database is crucial for healthcare, ensuring effective organization and accessibility of donor and recipient data. This SQL project presents learners with the opportunity to work on the complexity of designing a database with multiple interrelated tables, providing hands-on experience in creating a comprehensive and well-structured system.

With a real-world application reflecting scenarios encountered in actual blood banks and healthcare institutions, the project equips learners with practical skills directly applicable in healthcare settings. The use of SQL queries to retrieve specific information, such as available blood types and donation trends, enhances data retrieval and reporting skills crucial in healthcare management.

It gives learners a chance to contribute to the critical aspect of healthcare by applying SQL skills to organize and manage blood donation information.

11. Art Gallery Management Database 

Designing an Art Gallery Management Database is a compelling SQL projects for resume. As a beginner, you can design tables to capture the relationships between artists, artworks, exhibitions, and customers. SQL queries can then be applied to manage the art inventory, track exhibition histories, and analyze sales data.

The E-R diagram for an art gallery or museum would comprise the following data:

  • About Artist: Name, Age, Birthplace, Style of work
  • About Art Works: Artist, Year of making, Unique title, Style of art, price

If you are running an art store, you can also organize and manage all your customer information, including names, addresses, the amount spent, liking and interests.

Creating a well-structured system by working on a complex database with interconnected tables gives learners hands-on experience. SQL project topics like this offer hands-on practical knowledge. In this case, it is because art galleries regularly deal with detailed data about artists, artworks, and sales.

Designing a database for art gallery management reflects real situations, teaching skills directly useful in the art industry. Plus, using SQL queries to analyze data, like figuring out popular artists or sales trends, helps learners get better at making informed decisions based on data.

Source Code: Art Gallery Management Database

12. Cooking Recipe Portal

Designing a Cooking Recipe Portal is one of the best SQL projects for data analysis. It involves creating a database to manage various aspects of cooking, such as recipes, ingredients, and user interactions. You can have tables for recipes, ingredients, user profiles, and comments. SQL queries can be applied to retrieve recipes based on ingredients, display user-specific information, and manage comments.

This is another application of SQL databases in the creative field. You can model a web portal where a stored procedure will display your cooking recipes under different categories. Here’s how you can contain and feature your information:

  • Cooking recipe article/blog using RichText HTML editor
  • ‘Recipe of the Day’ with the highest ratings/likes 
  • Recipes viewed in the last 5 Hours

You can also add the functionality for users to rate the recipes and comment on them. If you want to edit or delete a recipe, you can do so in a password-protected admin area. 

This project provides practical experience in database design and application, covering aspects like user authentication, content management, and data retrieval. Beginners can benefit from this project as it allows them to work on a real-world scenario, applying SQL skills to organize and retrieve information efficiently within the context of a cooking recipe portal.

Source Code: Cooking Recipe Portal

13. Carbon Emissions Calculator

Lately, environmental conservation has been receiving a lot of attention globally. You can also contribute to the cause by developing a web application that measures the carbon footprint of buildings. This calculator will use data such as floor area and workdays per year combined with user-selected data or custom values on building type, climate zones, type of water fixtures, etc.

Creating a Carbon Emissions Calculator as an SQL project involves designing a database to track and manage carbon emissions data. You can have tables for different entities, such as companies, vehicles, or activities, each with relevant emission factors.

So, the emissions given as outputs can be attributable to energy use, domestic water use, transportation, disposal of solid waste. American company CTG Energetics Inc. has conceptualized a similar tool based on an Excel file and later converting it into an SQL server web application. Also, there are some advanced Excel formulas that help to do work in a better way.

SQL queries can then be applied to calculate and analyze carbon footprints, compare emissions across entities, and generate reports. This project offers practical experience in database design, data management, and the application of SQL for environmental data analysis. It is not only relevant to real-world sustainability efforts but also provides a platform to enhance SQL skills by working on complex calculations and data analysis related to carbon emissions.

14. A Voice-based Transport Enquiry System

This innovative tool helps you save time while travelling. You would have noticed long queues outside the transport controller’s office at public transport terminals. This is where commuters make inquiries about the different types of transport facilities available. In this scenario, technology-enabled transport enquiry systems can result in huge savings of time and effort. You can develop an automated system for bus stands, railway stations, and airports that can receive voice commands and also answer in a voice-based format.

This can be one of the most valuable SQL projects for resume, especially if you’re showcasing skills in database management, SQL, and integration with emerging technologies. It demonstrates your ability to design and manage a database for transportation-related information and showcases your proficiency in SQL queries.

Additionally, the incorporation of a voice-based interface highlights your capability to work with innovative technologies and create user-friendly systems. Including such a project on your resume can impress potential employers, showing that you have practical experience in database design, SQL, and the development of systems with user interaction capabilities.

Source Code: A Voice-based Transport Enquire System

Read about: Web Development Project Ideas

15. Database Interfacing for LabVIEW Robotic Control

LabVIEW is a dynamic tool that uses data to modify the operating parameters of a robot, depending on different conditions. In order to do this, the data should be stored in such a way that it is readily accessible by the program. Hence, database interfaces are developed to facilitate effective communication. SQL queries within the database allow structured and convenient storage and retrieval of data, which, in turn, improves the robot’s functionality.

All in all, it is a great DBMS project using SQL and can be a valuable addition to your resume. It shows you can design a database and integrate it with LabVIEW, a tool for controlling robots. This project can also help you learn how to manage data important for controlling robots and is a practical example of what you might do in the real world.

Including this project on your resume demonstrates your skills in both database management and integrating databases with specialized control systems, making it a strong addition to showcasing your abilities.

The above suggestions would be great SQL projects for resume. 

However, once you are done with these SQL topics, you can look into the below-mentioned suggestions that are a bit on the intermediate to pro-level but are great SQL projects for resume. 

Under the intermediate to advanced SQL topics, there are functions, data pivoting, cursors, triggers, dynamic SQL, data modelling and many more. 

  • Temporary Functions: With the help of SQL, you can create temporary or permanent user-defined functions (UDF) and give inputs to perform actions. Temporary functions like such help you divide larger chunks of codes into smaller bits. As a result, delivering cleaner codes. It also prevents the repetition of code similar to functions used in Python. 
  • CTEs aka Common Table Expressions: In case you need to make a query of a query, CTEs come to your rescue by creating a temporary table. Similar to temporary functions, it also aims at breaking larger portions of work into smaller parts to make it less complex. Therefore, it modularises the codes. CTEs come in handy when you have several sub-queries or, even worse, sub queries of sub queries! You’ll learn about the WHERE clause, which will help you filter data. 
  • Date and time manipulation: When getting into the intermediate to advanced level of SQL, you are required to know about the date and time manipulation. Some of the functions vital to learning more about this topic are, EXTRACT, DATE_TRUNC. DATEDIFF and DATE_ADD. The topic precisely trains you to curate simple months of DD-MM-YYYY from variable data. 
  • Data pivoting using CASE WHEN: Implementing the CASE WHEN function is a very common task in SQL. Yet, the concept is so versatile that it is often considered an intermediate to an advanced topic. With the help of the CASE WHEN function, you can easily write and allocate tricky conditional statements to particular values or classes. The function also helps in data pivoting, which is equally helpful in case you have to perform row-column interchange in a data set. 
  • Ranking:  Ranking rows and values is a very common and valuable skill. Companies often utilise functions such as ranking customers by their number of purchases or ranking regions based on sales. There are functions such as ROW_NUMBER(), DENSE_RANK() and RPW_NUMBER() that can be used for ranking. 
  • Running Totals: Knowing this skill often comes in handy if you are reporting or developing applications. Simplify the process by learning more about ROW_NUMBER() and LAG(). After that, you can learn about SUM() to calculate the running total. 

Learn Software development Courses online from the World’s top Universities. Earn Executive PG Programs, Advanced Certificate Programs, or Masters Programs to fast-track your career.

Can we do projects on SQL?

Building SQL projects helps in mastering data manipulation and querying skills, essential for data analysis and database management. It enhances understanding of relational databases, improves problem-solving abilities by tackling real-world data challenges, and boosts employability in tech-oriented roles by showcasing technical proficiency to potential employers.

Wrapping up

Projects create an active learning environment where the mind can think critically and employ inquiry-based methods to find solutions. While choosing your sql projects for data analysis, you should typically go for a project in which you at least use database normalization techniques. These are design approaches that reduce the dependency and redundancy of data. With the above SQL project ideas, you are good to go!

If you are curious to learn about SQL, and more about full-stack development, check out IIIT-B & upGrad’s Executive PG Program in Full Stack Software Development which is created for working professionals and offers 10+ case studies & projects, practical hands-on workshops, mentorship with industry experts, 1-on-1 with industry mentors, 400+ hours of learning and job assistance with top firms.

Frequently Asked Questions (FAQs)

1. What is the difference between SQL and SQL Server?

SQL or Structured Query Language is a programming language used to manage relational databases and manipulate the data contained in them. SQL Server is a proprietary database system management tool that implements SQL code. Developed by IBM, SQL is a standard query language that adheres to ANSI protocols. Microsoft Corporation developed SQL Server to meet commercial demands. And SQL is implemented by the majority of the relational databases, including SQL Server. SQL Server cannot run on all platforms, whereas SQL is platform-independent. SQL Server is a relational database application that undergoes regular updates, but SQL is standardized and requires no updates.

2. How is SQL different from PL SQL?

SQL is a standardized query language used for relational databases. PL/SQL is a procedural language that implements SQL codes in an improvised manner. At a time, SQL can execute only a single operation, whereas PL/SQL permits group operations in a block. SQL does not support variables and control structures. But PL/SQL supports variables and data types and control structures like for loop, if-else, while loop, etc. PL/SQL can be used to develop web-based applications and server pages, whereas SQL is only used to retrieve data and modify table structure and data. SQL can be embedded into PL/SQL code, but the reverse is not possible.

3. Is SQL case sensitive?

For simplicity, remember that KEYWORDS in the SQL framework are made case-insensitive by default and also for most relational databases. The computer system does not differentiate when we write SELECT or select, so we are free to write in any case. However, when it comes to writing SQL statements for enterprise applications that involve collaboration with various other teams, certain conventions are followed. The convention is to generally write SQL keywords in capital letters so that it is easy to read and understand. Even though we can technically use any case to write SQL keywords, practically, that is not done.

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Rohan Vats

Software Engineering Manager @ upGrad. Passionate about building large scale web apps with delightful experiences. In pursuit of transforming engineers into leaders.

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How to Become a Full Stack Developer: Part 1

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Explore our Popular Software Engineering Courses Master of Science in Computer Science from LJMU & IIITB Caltech CTME Cybersecurity Certificate Program Full Stack Development Bootcamp PG Program in Blockchain Executive PG Program in Full Stack Development View All our Courses Below Software Engineering Courses Check out upGrad’s Advanced Certification in Cloud Computing  Once you’re done with them, you’ll have a pretty good idea as to what the field of Computer Science has to offer. From here, you can dive deeper into the many branches of CS: AI and Machine Learning, Data Science, Full Stack Development, Information Security, etc. In this series of posts, however, I will only be covering a suggested path towards teaching yourself Full Stack Development. 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Through the program, you would get valuable hands-on experience on React working on cool projects like creating an Instagram-lookalike or a Quora-like website on your own. Interview with Farooq Adam, Co-Founder, Fynd Conclusion So far, we’ve gone through curated lists to introduce ourselves to Computer Science, learn Data Structures and Algorithms, Design Principles and the technology stack of a front-end developer. In the next posts, I shall be covering the following: Back-end Development Mobile App Development I hope you’ve found this article useful. If there are resources or technologies I’ve left out that you feel are important, please do mention them in the comments!
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Unlike front-end where Javascript is the only choice, there are a plethora of options available for you to program on the backend. The most popular ones are Java, PHP, Python, JavaScript and Ruby. PHP has its shortcomings, but it has the gentlest learning curve out of all the languages and frameworks I’ve used so far. And PHP is about coding quick (and dirty) solutions. So, in an extremely short period of time, you can build a web app to be extremely proud of. Java is a general-purpose programming language and probably the most popular language of all time. It is extremely popular for building mobile apps (on the Android platform) and used extensively in most major tech companies. Head First Java is an excellent place to learn this ubiquitous language. 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You could take a look at Michael Hartl’s The Rails Tutorial – available for free. As far as Django is concerned, the tutorial on the official website is a good place to start. Once you feel you’re comfortable with the basics of the framework, do give Two Scoops of Django a read. It’s one of the best technology books ever. If you’ve decided to go the Spring route, I’d strongly suggest signing up for UpGrad & IIIT-B’s Software Development program. The program gives you a very holistic overview of the framework and helps you build a robust and scalable backend. 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Therefore, there has been a recent surge of interest towards asynchronous programming and making AJAX requests the norm. Javascript Frameworks tend to excel at this. So, it makes sense to get acquainted with one of the major JS frameworks available in the market. The two most popular ones are the MEAN Stack and MeteorJS. Interview with Farooq Adam, Co-Founder, Fynd Learning MEAN is slightly more complicated due to its asynchronous nature and the callback hell Node usually tends to unleash. But now that you’re a seasoned developer, you are mature enough to deal with its idiosyncrasies. Meteor is a full-stack JS framework I’m currently experimenting with. The concept of Meteor is absolutely delightful – one framework in one language that takes care of all the components of an application (front-end, back-end, and database). However, this comes at the cost of customisation freedom. 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This post is the third and final in the series on becoming a full-stack developer. This article talks specifically about mobile app development. Read here for more on frontend and backend development. When Steve Jobs introduced the iPhone in 2007, it ushered the biggest revolution the world had witnessed since the printing press. Smartphones have managed to penetrate almost every country on the globe. Even the most impoverished seem to be in possession of one so much so that life without them seems inconceivable. Check out our free courses to get an edge over the competition Motivation There are certain apps which make sense only when running on a phone. Take Uber, for instance. Uber needs to know your exact location through GPS. An Uber app for desktop wouldn’t make much sense. Another issue is that a majority of your audience will open your app through a phone, even if it is one that has been built for browsers. In such cases, it is imperative that you ensure the experience is seamless and too much data isn’t consumed. Finally, there are subtle differences between interacting using mouse-clicks and touch. Your app must ensure that it behaves well in both scenarios. Keeping all these considerations in mind, it makes good sense to venture out of the browser and build mobile apps. This ensures that you make maximum use of the functionalities a typical smartphone has to offer while at the same time making the user experience a delight. Below are the steps to acing mobile app development. For the first part to become a full stack developer on frontend and backend development. Check out upGrad’s Advanced Certification in Blockchain Learn Software Development Courses online from the World’s top Universities. Earn Executive PG Programs, Advanced Certificate Programs or Masters Programs to fast-track your career. Interview with Ankit Tomar, Co-Founder & CTO, Bizongo Step 12: Choose a Platform The first step would be to choose a platform where you would like to build your application. Unless you’re part of a reasonably big team, it is extremely unlikely that you will build apps from scratch on all major platforms. The more likely scenario is that you will be coding on your favourite platform and will then simply port it over to the others. The major smartphone platforms today are iOS, Android, and Windows. They use drastically different languages and IDEs. 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If you plan on making money from your app, keep in mind that iOS users are more likely to open their wallets for in-app purchases than their Android counterparts. This may be because iOS users usually tend to have more disposable income as compared to third world markets where Android dominates. iOS development requires you to have a Mac Development machine. Also, Apple App Store licenses retail at $99/year compared to Google Play’s one time $25 fee. In other words, iOS development is considerably more expensive. In this post, I shall cover how mobile app development is done today: Native Android Apps, Native iOS Apps and Hybrid Mobile Apps. Explore Our Software Development Free Courses Fundamentals of Cloud Computing JavaScript Basics from the scratch Data Structures and Algorithms Blockchain Technology React for Beginners Core Java Basics Java Node.js for Beginners Advanced JavaScript Step 13: Java and XML Java is the most popular language for Android Development (Google has recently introduced support for the Kotlin Programming language too). The founders of Android thought Java to be an appropriate choice and they have stuck to it since its inception. And if their trajectory is anything to go by, it has been nothing short of an amazing decision. The best resource to learn Java would be Head First Java. Reading this book will give you a thorough introduction to the language as well as Object Oriented Programming Principles. As far as XML is concerned, I do not think you need a concentrated tutorial on the subject. You’ve already worked extensively with a subset of XML (HTML) and you will be able to figure it out pretty quickly, even if you were to jump directly into Android development. I cannot say the same for Java. Ensure you have a good grasp of the language before venturing into Android. Step 14: Android You now have the technical know-how to build Android apps. It is time to dive deep into this revolutionary OS. Be wary though that certain Android practices differ from what you usually see on the web. The resources I’ve suggested below will ensure that your learning is not hindered by these differences. Android Programming- The Big Nerd Ranch Guide 2nd Edition is a good place to start if you know Java already. Make sure you pick up the second edition as that is the one that uses Android Studio, which is the industry standard now. The practice of building apps in Eclipse is largely outdated. Interview with Farooq Adam, Co-Founder, Fynd Explore our Popular Software Engineering Courses Master of Science in Computer Science from LJMU & IIITB Caltech CTME Cybersecurity Certificate Program Full Stack Development Bootcamp PG Program in Blockchain Executive PG Program in Full Stack Development View All our Courses Below Software Engineering Courses Step 15: iOS If you are more of an Apple aficionado and/or have decided that iOS apps make more sense to your business/career aspirations. The first step would be to acquire a Mac. XCode works only on Mac and in order to publish on the app store, you need a Mac. Sorry, VMWare. The resource I’m going to suggest for iOS is exactly the same as that for Android. Nerd Ranch has its own publication – iOS Programming: The Big Nerd Ranch Guide which deals with Swift and XCode, so that is a good place to start. Step 16: Hybrid Mobile Apps If you’re a solo developer or are working in a small team, you probably do not have the time or the resources to separately build and maintain Android and iOS Apps. To alleviate the developer’s pain of building for multiple platforms, the concept of Hybrid Mobile Apps was introduced. The concept is extremely simple and revolutionary. If you know Javascript, you already know how to build web apps. Therefore, should you have an app in JS, there must exist a framework that automatically ports your application into Android, iOS, and Windows. Incredible but true. Most hybrid frameworks achieve this using Cordova or React Native. You can think of Cordova as the bridge between browsers and the smartphone’s native hardware. It establishes a connection between the two solely using JS and helps in creating the build scripts in the native languages of each platform. Cordova based frameworks, however, are rapidly being overshadowed by Facebook’s powerhouse, React Native. The power of React Native lies in the fact that while Cordova constructs WebViews, React Native lets you build native apps that you’d build using either Java (for Android) or Swift (for iOS). In other words, Cordova is a website disguised as a mobile app, but React Native lets you build the real thing. In-Demand Software Development Skills JavaScript Courses Core Java Courses Data Structures Courses Node.js Courses SQL Courses Full stack development Courses NFT Courses DevOps Courses Big Data Courses React.js Courses Cyber Security Courses Cloud Computing Courses Database Design Courses Python Courses Cryptocurrency Courses In my opinion, you can give Cordova a miss and learn React Native instead. It is an extremely great career investment to make. UpGrad & IIIT-B’s Software Development program is a great place to start your journey with this revolutionary library which has already been used by companies like Facebook, Netflix and AirBnB to design their apps. Interview with Farooq Adam, Co-Founder, Fynd Conclusion With the conclusion of hybrid apps, we come to an end of this series. In summary, these are the things we’ve covered: Computer Science Fundamentals. Data Structures and Algorithms UI/UX HTML, CSS, JS Front-End Frameworks Server-Side Scripting and Databases Full Stack Frameworks Android and iOS Hybrid Mobile Apps Read our Popular Articles related to Software Development Why Learn to Code? How Learn to Code? How to Install Specific Version of NPM Package? Types of Inheritance in C++ What Should You Know? I hope you’ve enjoyed reading this series as much as I have enjoyed writing it and more importantly, found at least some parts useful. As always, your comments and suggestions are welcome!
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by Rounak Banik

01 Dec'17
Why Companies are Looking to Hire Full Stack Developers

7.11K+

Why Companies are Looking to Hire Full Stack Developers

It’s no secret that companies today are looking to hire young and talented software developers. But with so many smart developers out there, how can you set yourself apart from everyone else applying for these coveted roles? The best way to do this is to master the skills companies demand: a wide variety of programming skills. When you are learning how to develop software, you can improve your odds of getting a job by learning full stack development. In fact, Indeed ranked the Full Stack Developer role as the #1 job in 2017. Check out our free courses to get an edge over the competition. There are three main reasons why companies love to hire young full stack developers: Full stack developers can solve many problems Companies look to hire people based on what problems the candidates can solve for the company. By definition, full stack developers can work on both backend, frontend, and the protocols that connect the two; being able to create a software product end to end and independently. When you learn full stack development, you have an advantage over other job seekers as you can solve many more problems than other developers. For example, think about working at a high growth startup. Startups need developers who can work on a variety of programming projects. From user interfaces to server-side programming, to database applications, and everything in between. With only a small team, startups want to hire full stack developers who can work on many of the different software projects. As a full stack developer, you build many types of software projects that most other developers cannot. Check out upGrad’s Full Stack Development Bootcamp (JS/MERN) Even at a larger company, hiring developers with the knowledge to work on many different projects gives a manager flexibility to move people between teams as businesses constantly need change. One year, you can have a developer work on a frontend project and then you can move him to a backend project the very next year. The added flexibility makes the manager’s job much easier so they like to work with developers with a wide variety of skills. Check out upGrad’s Java Bootcamp.   How to Become a Full Stack Developer Companies love full stack developers because they can solve many different problems for the business. Companies like to hire young developers who are generalists The main reason is that companies hire young developers based on their potential rather than deep domain knowledge. Companies like to teach young developers what they want them to know. As a full stack developer, you have a broad set of technology skills that the company can help you expand further. As an entry-level developer, they don’t need you to understand every algorithm. But you need to have core programming knowledge so the company can teach you what is specific to their business. Let’s go back to the example of working at a startup. When the company is starting out, they need full stack developers to work on all layers of the development stack, but as the company grows, the developers will need to specialise. It’s easy for a full stack developer to start as a generalist and then become a specialist later as the company can hire more employees. On the other hand, it’s very difficult for a specialist to join a startup and learn to be a generalist when the company is small. Full stack developers can grow with their companies more easily than specialists can. In-Demand Software Development Skills JavaScript Courses Core Java Courses Data Structures Courses Node.js Courses SQL Courses Full stack development Courses NFT Courses DevOps Courses Big Data Courses React.js Courses Cyber Security Courses Cloud Computing Courses Database Design Courses Python Courses Cryptocurrency Courses Once you know the basics and get the job, the company will invest time and money to help you expand your knowledge further. Full stack developers can become great managers and executives Companies love to promote people with a wide variety of experiences in the business. As a full stack developer, you will get a chance to work on frontend software, backend software, and all of the architecture that connects them. Through that variety of experience on different projects, you get the opportunity to learn much more than your solely backend and frontend peers. They only get a chance to learn one part of the company’s technology architecture, but you learn the whole architecture and understand how it all fits together. That puts you in a great opportunity to rise through the technology ranks of the company and get promoted. If you work at a startup, your experience as a full stack developer can help set you apart from your peers as the company grows. Where some developers only know how one part of the technology stack works, you understand how all aspects of the technology fit together. As more developers are hired and new technology teams form, you are more likely to manage those new teams because of your wide knowledge. At a large company, you may also get more chances for promotion. When companies look to promote from within, they need people who can manage cross-functional software teams. As a full stack developer, you will know how to talk to developers from both frontend and backend teams. How to Succeed in Your First Software Development Job Of course, technology skills are not the only ones needed to get you a promotion. You will also need to learn business skills to be a manager. But if you do that you can climb high up the corporate ladder. Looking to become a full stack developer? This article does a great job explaining how to get started: How to become a full stack developer. Explore Our Software Development Free Courses Fundamentals of Cloud Computing JavaScript Basics from the scratch Data Structures and Algorithms Blockchain Technology React for Beginners Core Java Basics Java Node.js for Beginners Advanced JavaScript Enroll in Software Engineering Courses from the World’s top Universities. Earn Executive PG Programs, Advanced Certificate Programs, or Masters Programs to fast-track your career.
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by Gopi Vajravelu

31 Jan'18
What is Test-driven Development: A Newbie’s Guide

5.53K+

What is Test-driven Development: A Newbie’s Guide

Programmers and bugs have been in a never-ending fight for supremacy since time unknown. It’s unavoidable – even the best programmers fall prey to bugs. No code is truly safe from bugs, that’s why we perform testing. Programmers, at least the sane ones, test their code by running it on development machines to make sure it does what it was meant to do. Traditionally, test cases were written after writing the code, but in Test-driven Development, an automated test case is written before writing any piece of code so that the execution and testing can be checked simultaneously. In this article, we’ll be talking about Test-Driven Development in depth and why is it better than the traditional methods! Check out our free courses to get an edge over the competition   What is Test-Driven Development? Test-Driven Development was created as part of the Extreme Programming (XP) methodology and was called the ‘Test-First’ concept. Test-driven development allows you to test your code thoroughly, and also enables you to retest your code quickly and easily since it’s automated. In essence, before writing any piece of code, the programmer first creates a unit-test. Then, the programmer creates just enough code to satisfy the unit-test. Once the test is passed and the code refactored, the programmer can go ahead with making further improvements. Test-driven development makes sure that the code is thoroughly tested which leads to a modularized, extensible, and flexible code. Each time a new feature is to be added, it needs to undergo what is called the “lifecycle” of TDD. Let’s talk more about this lifecycle. Check out upGrad’s Advanced Certification in DevOps How to Become a Full Stack Developer Explore Our Software Development Free Courses Fundamentals of Cloud Computing JavaScript Basics from the scratch Data Structures and Algorithms Blockchain Technology React for Beginners Core Java Basics Java Node.js for Beginners Advanced JavaScript Test-Driven Development Lifecycle The test-driven development lifecycle covers everything from writing the initial unit-test to reworking the code. Add a test: Every new feature needs to undergo a test before its implemented. The essential requirement for writing a test is to have a clear understanding of all the requirements. This is accomplished using use-cases and user-stories.   Run all tests and check the net test: This is done to ensure the correct working of our test. Basically, this phase aims to check that the test is not passed by any code that doesn’t meet the requirements. By doing so, this step eliminates the possibility of having a faulty test at hand.   Write code: Now that you have your test in place, the next obvious step is to write a code that clears the test. This code need not be perfect in all aspects, but it needs to clear the test. Once we’re sure this code clears the test, it can be modified as per the requirements.   Run the tests: Having written the code, now it’s time to see if the code passes the test or not. If your code passes the tests, it means that your code meets the requirements – till now.   Refactor the code: This is essentially done to clean up the code. Refactoring doesn’t cause damage to any of the functionalities; it is just for cleaning the code by removing duplication between test code and production code.   Repeat: This cycle is now repeated with a fresh test to add more functionalities. Each functionality undergoes the same cycle. Essentially, the size of steps should be not more than 1-10 edits between each test run. If a code doesn’t pass the test rapidly, the developer must revert and not debug excessively. Check out upGrad’s Full Stack Development Bootcamp (JS/MERN)  Why Companies are Looking to Hire Full Stack Developers Explore our Popular Software Engineering Courses Master of Science in Computer Science from LJMU & IIITB Caltech CTME Cybersecurity Certificate Program Full Stack Development Bootcamp PG Program in Blockchain Executive PG Program in Full Stack Development View All our Courses Below Software Engineering Courses The Pros and Cons of Test-Driven Development Test-driven development has some definite pros over traditional methods of testing – which were mostly manual. However, it’s not infallible. Just like any other technology, the test-driven development also has a set of cons. Let’s have a look at what are the benefits of TDD in detail: Writing small tests ensures modularity of your code. Practicing TDD helps you understand the underlying principles of good modular design.   TDD provides clarity during the implementation of your code which enables a safety-net during the refactoring phase.   With TDD, collaborating is a lot easier as now people can edit the code with confidence because the test will inform them if their changes are not up to the mark of the test.   The base of TDD is unit-tests. Because of that, refactoring is a whole lot easier and faster. Refactoring an old code is a pain, but if the code is backed by unit tests, it becomes so much easier.   It helps in clarifying all the requirements before you begin the coding part. This way, a lot of ambiguity that can arise later on is avoided.   Test-driven development focuses on testing while writing. This forces the programmer to make their interfaces clean enough to pass the test. It’s hard to understand this advantage until you work on a piece of code that hasn’t undergone TDD.   Silly mistakes are caught almost immediately. It helps in removal of those mistakes that would waste a lot of time if found in QA. In-Demand Software Development Skills JavaScript Courses Core Java Courses Data Structures Courses Node.js Courses SQL Courses Full stack development Courses NFT Courses DevOps Courses Big Data Courses React.js Courses Cyber Security Courses Cloud Computing Courses Database Design Courses Python Courses Cryptocurrency Courses Now, let’s have a look at what are the limitations of test-driven development: The test suite that’s used for testing needs to be maintained else the tests may not be fully deterministic.   The tests are hard to write – especially beyond the unit-testing phase.   TDD does slow down the pace of development, at least initially.   Like with any form of development, there’s a big difference between just doing it and doing it well. Writing good unit tests requires a level of specialty.   It’s difficult to apply this approach to your legacy(existing) code.   TDD requires you to perform routine housekeeping. It’s necessary to refine the tests to make them run more quickly.   It’s easy to get distracted by the fancy features in any unit-testing framework, but it should be kept in mind that simple tests tend to give the best results.   Unless everyone on the team correctly maintains their tests, the whole system can quickly degrade. How to Succeed in Your First Software Development Job Read our Popular Articles related to Software Development Why Learn to Code? How Learn to Code? How to Install Specific Version of NPM Package? Types of Inheritance in C++ What Should You Know? In Conclusion… Test-driven development is the way forward as far as future of application development goes. There are a number of automated testing frameworks like PHPUnit, Serenity, Robot, RedWoodHQ, and many more. Pick the one that fits your need and get started with building better maintainable applications in no time!  Enroll in Software Engineering Courses from the World’s top Universities. Earn Executive PG Programs, Advanced Certificate Programs, or Masters Programs to fast-track your career.
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by Arjun Mathur

12 Mar'18
A Beginner’s Guide to MVC Architecture in Java

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A Beginner’s Guide to MVC Architecture in Java

If you’re related to web development scene, you’ll most certainly have come across the acronym “MVC” hundreds of time, if not more. MVC is one of the most talked about design patterns in the web programming world today, and rightly so. In this article, we’ll take you through the world of MVC Architecture. We’ll talk about the basics of MVC, its advantages, and finally, a simple code that will help you understand the implementation of MVC in Java in a clearer way. What exactly is the MVC architecture? Before we get into the technicalities of it, let’s make some things clear – MVC is NOT a design pattern, it’s a way to structure your applications. In recent years, the web applications are extensively using the MVC architecture, and hence it’s natural to confuse it for a design pattern exclusive for web applications. However, let’s tell you that MVC was first described way back in 1979 – before the WWW era when there was no concept of web applications. The architecture used today for web applications is an adaptation of the original pattern. In fact, this architecture was initially included in the two major web development frameworks – Struts and Ruby on Rails. These two environments paved the way for a majority of web frameworks that came later – and thus the popularity of this architecture kept rising. Learn to build applications like Swiggy, Quora, IMDB and more MVC architectural pattern follows an elementary idea – we must separate the responsibilities in any application on the following basis: Model: Handles data and business logic. View: Presents the data to the user whenever asked for. Controller: Entertains user requests and fetch necessary resources. Each of the components has a demarcated set of tasks which ensures smooth functioning of the entire application along with complete modularity. Let us have a look at each of these components in further detail. Check out our free courses to get an edge over the competition. Explore Our Software Development Free Courses Fundamentals of Cloud Computing JavaScript Basics from the scratch Data Structures and Algorithms Blockchain Technology React for Beginners Core Java Basics Java Node.js for Beginners Advanced JavaScript upGrad’s Exclusive Software and Tech Webinar for you – SAAS Business – What is So Different? document.createElement('video'); https://cdn.upgrad.com/blog/mausmi-ambastha.mp4   Controller The controller is the like the housekeeper of the application – it performs coordination between model and view to entertain a user request. The user requests are received as HTTP get or post request – for example, when the user clicks on any GUI elements to perform any action. The primary function of a controller is to call and coordinate with the model to fetch any necessary resources required to act. Usually, on receiving a user request, the controller calls the appropriate model for the task at hand. Check out upGrad’s Full Stack Development Bootcamp (JS/MERN) Model The model is quite simply the data for our application. The data is “modelled” in a way it’s easy to store, retrieve, and edit. The model is how we apply rules to our data, which eventually represents the concepts our application manages. For any software application, everything is modelled as data that can be handled easily. What is a user, a book, or a message for an app? Nothing really, only data that must be processed according to specific rules. Like, the date must not be higher than the current date, the email must be in the correct format, the name mustn’t be more than “x” characters long, etc. Check out upGrad’s Java Bootcamp Whenever a user makes any request from the controller, it contacts the appropriate model which returns a data representation of whatever the user requested. This model will be the same for a particular work, irrespective of how we wish to display it to the user. That is why we can choose any available view to render the model data. Additionally, a model also contains the logic to update the relevant controller whenever there is any change in the model’s data. Explore our Popular Software Engineering Courses Master of Science in Computer Science from LJMU & IIITB Caltech CTME Cybersecurity Certificate Program Full Stack Development Bootcamp PG Program in Blockchain Executive PG Program in Full Stack Development View All our Courses Below Software Engineering Courses View As the name suggests, the view is responsible for rendering the data received from the model. There may be pre-designed templates where you can fit the data, and there may even be several different views per model depending on the requirements. Any web application is structured keeping these three core components in mind. There may be a primary controller that is responsible for receiving all the requests and calling the specific controller for specific actions. Let’s understand the working of a web application under the MVC architecture better using an example. Let’s See an Example Let’s take an example of an online stationery shop. The user can view items, buy, add items to cart, add items to current order, or even add/remove items (if he’s the admin). Now, let’s see what will happen when a user clicks on the title “Pens” to see the list of pens. Our application will have a particular controller to handle all the queries related to pens. Let’s say it’s called “pens_controller.php”. We’ll also have a model that will store the data regarding the pens we have – let’s call it “pens_model.php”. Finally, we’ll have several views to present the data – a list of pens, a table displaying pens, a page to edit the list, etc. The following figure shows the complete flow of control right from the moment a user clicks on “pens”, to when the result is rendered in front of him: First, the “pens_controller.php” handles the user request (1) as a GET or POST request. We can also have an “index.php” which is the central controller which will call the “pens_controller” whenever needed. The controller then examines the request and the parameters and calls the required model – in this case, “pens_model.php”. The controller asks the model to return the list of available pens (2). Now, the model searches the database for the necessary information (3), applies logics if necessary, and returns the data to the controller(4). The controller then picks an appropriate view (5) and presents the data (6 and 7). If a request comes from a handheld device, a view suitable for it will be used, or if the user has a particular theme selected, its view will be picked – and so on. How to Become a Full Stack Developer The Advantages of the MVC Architecture A common problem faced by application developers these days is the support for different type of devices. The MVC architecture solves this problem as developers can create different interfaces for different devices, and based on from which device the request is made, the controller will select an appropriate view. The model sends the same data irrespective of the device being used, which ensures a complete consistency across all devices. The MVC separation beautifully isolates the view from the business logic. It also reduces complexities in designing large application by keeping the code and workflow structured. This makes the overall code much easier to maintain, test, debug, and reuse. In-Demand Software Development Skills JavaScript Courses Core Java Courses Data Structures Courses Node.js Courses SQL Courses Full stack development Courses NFT Courses DevOps Courses Big Data Courses React.js Courses Cyber Security Courses Cloud Computing Courses Database Design Courses Python Courses Cryptocurrency Courses A Simple Implementation of MVC using Java We will have the following three: StudentObject : the model.   StudentView: view class to print details on the console.   StudentController: a controller that stores data in studentObject and updates StudentView accordingly Step 1: Create the Model public class Student {   private String rollNo;   private String name;      public String getRollNo() {      return rollNo;   }      public void setRollNo(String rollNo) {      this.rollNo = rollNo;   }      public String getName() {      return name;   }      public void setName(String name) {      this.name = name;   } } The code is self-explanatory. It consists of functions to get/set roll number and names of the students. Let’s call it “student.java”. Step 2: Create the View public class StudentView {   public void printStudentDetails(String studentName, String studentRollNo){      System.out.println("Student: ");      System.out.println("Name: " + studentName);      System.out.println("Roll No: " + studentRollNo);   } } This is simply to print the values to the console. Let’s call this “studentView.java”. Step 3: Create the Controller public class StudentController {   private Student model;   private StudentView view;   public StudentController(Student model, StudentView view){      this.model = model;      this.view = view;   }   public void setStudentName(String name){      model.setName(name);   }   public String getStudentName(){      return model.getName();   }   public void setStudentRollNo(String rollNo){      model.setRollNo(rollNo);   }   public String getStudentRollNo(){      return model.getRollNo();   }   public void updateView(){      view.printStudentDetails(model.getName(), model.getRollNo());   } } Call this “StudentController.java”. A cursory glance will tell you that this controller is just responsible for calling the model to get/set the data, and then updating the view. Now, let’s have a look at how all of this is tied together. Step 4: Create the main Java file public class MVCPatternDemo {   public static void main(String[] args) {      //fetch student record based on his roll no from the database      Student model  = retriveStudentFromDatabase();      //Create a view : to write student details on console      StudentView view = new StudentView();      StudentController controller = new StudentController(model, view);      controller.updateView();      //update model data      controller.setStudentName("John");      controller.updateView();   }   private static Student retriveStudentFromDatabase(){      Student student = new Student();      student.setName("Robert");      student.setRollNo("10");      return student;   } } This is called “MVCPatternDemo.java”. As you can see, it fetches the student data from the database or a function (in this case we’re using a function to set the values) and pushes it on to the Student model. Then, it initialises the view we had created earlier. Further, it also initialises our controller and binds it to the model and the view. The updateView() method is a part of the controller which updates the student details on the console. Step 5: Test the Result If everything goes right, the result should be: Student: Name: Robert Roll No: 10 Student: Name: John Roll No: 10 If you get this as the output, congratulations! You’ve successfully implemented the MVC architecture using Java, albeit for a simple application. However simple, this application is enough to demonstrate the powers of the MVC architecture. 15 Must-Know Spring MVC Interview Questions Wrapping Up… After so much said and done, it’s hard to emphasise more on the power of the MVC architecture in any web/desktop application these days. It provides an altogether new level of modularity to your code which makes it a lot more readable and maintainable. So, if you want to scale to new heights in your career as an application developer, getting hold of the MVC architecture and its working should be your top priority. Read our Popular Articles related to Software Development Why Learn to Code? How Learn to Code? How to Install Specific Version of NPM Package? Types of Inheritance in C++ What Should You Know? Enroll in Software Engineering Courses from the World’s top Universities. Earn Executive PG Programs, Advanced Certificate Programs, or Masters Programs to fast-track your career. Do drop by a comment and let us know how you like this article!
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by Arjun Mathur

09 Apr'18
What is the Future Scope of Full Stack Developer in India?

11.36K+

What is the Future Scope of Full Stack Developer in India?

Choosing a career in the tech sector can be tricky. You wouldn’t want to choose something that’s getting obsolete. You would want to find a career option that’s in demand and will remain in demand for the coming years. With so many options available, figuring out which one to choose can also be overwhelming. One of those options is full-stack development.  Full-stack developers are experts who are familiar with both client-side and server-side programming. They perform the roles of front-end and back-end developers. While some may argue that they are no specialists, a talented full-stack developer wouldn’t have much trouble handling development projects.  But you might wonder, “What is full stack developer’s future scope?” We’ll answer that question in this article and help you understand how attractive this field is. Let’s dive in.  Check out our free courses to get an edge over the competition. Explore Our Software Development Free Courses Fundamentals of Cloud Computing JavaScript Basics from the scratch Data Structures and Algorithms Blockchain Technology React for Beginners Core Java Basics Java Node.js for Beginners Advanced JavaScript How Full Stack Development has Evolved You might think that full-stack development is a new term, but the concept has existed for a long time. Full-stack development has a fascinating history that goes back to the earliest days of programming. Knowing how much this field has evolved will let you get an idea of how much scope is there.  Since the beginning of software development, when there was no web or mobile programming, the role of full-stack developers has been present. In the early 80s, most of the software developers used to work alone and oversee the entire project from start to finish. Check out upGrad’s Full Stack Development Bootcamp (JS/MERN) There wasn’t much requirement of separate experts. Then the web came, and the need for specialists increased. As websites got more complex, the division between specialists also became distinct.  Things were this way in the 90s and remained this way until the mid-2000s. The term full-stack developer was coined much later, in the 2000s, when the web required the expertise of different expertise. Web applications required people to learn both client-side programming and server-side programming. And when people who studied both of these sectors entered the market, the term full stack developer arrived. Apart from that, tools and technologies that simplified the integration of client-side and server-side programming had entered the market. This helped the growth of full-stack developers.  Explore our Popular Software Engineering Courses Master of Science in Computer Science from LJMU & IIITB Caltech CTME Cybersecurity Certificate Program Full Stack Development Bootcamp PG Program in Blockchain Executive PG Program in Full Stack Development View All our Courses Below Software Engineering Courses Full Stack Scope Now Nowadays, full-stack development is in huge demand. Companies need full stack developers because of several reasons. Full-stack developers can work with multiple technologies, and so, they can handle more aspects of a project than an average programmer. Check out upGrad’s Advanced Certification in Cyber Security They cut costs for companies because they can do the work of many specialists alone. A full-stack developer is familiar with many stacks, including the MEAN stack and the LAMP stack. Their vast knowledge of multiple areas equips them to handle the unique requirements of their projects.  The average salary for full-stack developers in India is about 6.3 LPA, and it goes up to 16 LPA for experts. Companies are willing to pay handsome salaries to full-stack developers because of their unique skill sets and abilities. As a full-stack developer, you’ll have to handle both the client-side and the server-side of the application you develop. Read a detailed article about the full stack developers salary in India based on various factors. Huge Demand and Steady Growth The future of full-stack development is attractive. It looks promising because of the steady growth in demand of these professionals. There are many reasons why the demand for full-stack developers is increasing and will keep rising in the coming years. Here are some of those reasons: Smaller Teams With a full-stack developer in the team, you can keep the team short. And smaller teams have many advantages over large ones. Even Jeff Bezos believes that a small team is better than a large staff. A large team requires more communication and more resources. A large team costs more than a small group as well. As they require more communication, the chances of facing problems of miscommunication are also higher in their cases.  A full-stack developer can easily handle the work of 2-3 developers because of his/her expertise. An excellent full-stack developer can handle the requirements of both a front-end developer and a back-end developer. Due to this reason, a company can keep the teams small, avoid miscommunication, and reduce the operating costs. In-Demand Software Development Skills JavaScript Courses Core Java Courses Data Structures Courses Node.js Courses SQL Courses Full stack development Courses NFT Courses DevOps Courses Big Data Courses React.js Courses Cyber Security Courses Cloud Computing Courses Database Design Courses Python Courses Cryptocurrency Courses upGrad’s Exclusive Digital Marketing Webinar for you – What’s new in Marketing? document.createElement('video'); https://cdn.upgrad.com/blog/rumi-ambastha.mp4   Adaptability Web development is a challenging field. A lot of factors are at play when you’re developing a new product. And the product’s requirements could change at any time. Maybe you found a new framework which can enhance productivity considerably. Or, maybe your team just got smaller because a member got fired. A full-stack developer is a preferred choice in such scenarios because he/she can adapt to these changes quickly.  Whether it’s taking on a new responsibility or making tweaks to the final product, full-stack developers can handle it all. Apart from that, as a full stack developer yourself, you wouldn’t have to worry about working on new projects that pose exciting challenges. After all, they are the “Jack of all Trades” of the sector.  Learn Software Development online from the World’s top Universities. Earn Executive PG Programs, Advanced Certificate Programs or Masters Programs to fast-track your career. New Technologies Development tools and software keep getting new updates for better performance. Even the programming languages get newer versions regularly to ensure they function better and cause less hassle. Most of the time, the new updates help with integrating different tools for enhanced productivity. Read: How to become a full stack developer? An average developer might have to put in a lot of effort to keep up with these new developments. He/she might not know how to approach the original subjects. On the other hand, a full stack developer has to learn the relations between different technologies beforehand. So keeping up with new updates and integrations is an easy task for him/her. Moreover, he/she would already be accustomed to learning new things about web development. That’s why they remain in huge demand. Read our Popular Articles related to Software Development Why Learn to Code? How Learn to Code? How to Install Specific Version of NPM Package? Types of Inheritance in C++ What Should You Know?   Conclusion You must’ve noticed how excellent the prospects are for full-stack developers. As companies are relying more and more on technology and the web, the demand for such experts is increasing. The full stack developer future scope is undoubtedly bright, and it’s the perfect time for anyone to learn this skill.  If you’re interested to learn more about full stack, check out upGrad & IIIT-B’s PG Diploma in Full-stack Software Development which is designed for working professionals and offers 500+ hours of rigorous training, 9+ projects and assignments, IIIT-B Alumni status, practical hands-on capstone projects & job assistance with top firms.
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by Rohit Sharma

26 Jan'20
25+Questions For Your Nagios Interview

6.92K+

25+Questions For Your Nagios Interview

Are you preparing for a DevOps interview? Then you should read these Nagios interview questions and answers.  Nagios is the most popular continuous monitoring software among companies. Companies rely on constant monitoring software to highlight errors and solve problems before they become significant issues. As a DevOps professional, recruiters would expect you to be familiar with all aspects of this powerful software. We’ve compiled a list of the most important Nagios interview questions and answers to help you prepare for your job interview. Feel free to share this list with others.  Check out our free courses to get an edge over the competition. What is Nagios? Nagios is a popular open-source solution that helps in monitoring systems, networks, and applications. It’s a standard DevOps tool, which tracks all the changes taking place in the subject. In case a technical fault arises, it can send alerts to the staff and make them aware of the issue as well. This way, the problem can be solved faster and earlier without it becoming a significant issue.  Nagios provides a centralized view of the complete infrastructure and vies detailed information on its status as well. You can also mention how it benefits organizations and how you can use it to solve the numerous problems related to the specific organization. Check out upGrad’s Advanced Certification in Cloud Computing Nagios helps in understanding where the infrastructure lacks and how you can upgrade it to overcome those problems. You can also mention how it automatically solves the issues detected. Nagios enables you to monitor the whole organization, its infrastructure, and its various processes.  This should answer the question. But you can add more points such as the advantages of using Nagios, and some other applications of Nagios, if required.  Check out upGrad’s Advanced Certification in Blockchain How Nagios helps DevOps Professionals? Nagios helps DevOps problems in tracking down issues and solving them in their early stages. This software solution overlooks every aspect of the infrastructure so it can spot an error and alert the technical team quickly. This way, DevOps professionals don’t have to worry about monitoring the systems for finding problems. They can rely on Nagios to spot the same.  Explore our Popular Software Engineering Courses Master of Science in Computer Science from LJMU & IIITB Caltech CTME Cybersecurity Certificate Program Full Stack Development Bootcamp PG Program in Blockchain Executive PG Program in Full Stack Development View All our Courses Below Software Engineering Courses What are the features of Nagios? Nagios has many features.  – Its APIs enable it for monitoring various systems, infrastructures, and applications. – It has add-ons that make you aware of the aging infrastructure and help you in planning upgrades. – You have full access to its code as it is open-source software.  – Its reporting system is fast and agile. It gives you a record of all the alerts and their responses.  – You can view the entire infrastructure of your organization through Nagios while also seeing the detailed information about everything. – Nagios has a vast community of more than a million users. If you come across any problems or have any questions, you can ask them who’d be happy to help.  How does Nagios operate? You can give this explanation as to your answer: Nagios runs as a service on a server It runs plugins on the server which connect with hosts on the network You can see the detailed information of the connected host through its interface In case some issue arises, you would receive an email or another notification Nagios runs scripts at specific times and saves the results of those scripts If the results of running the scripts change, Nagios starts running other scripts  That is how Nagios operates.  What do you mean by ‘Plugins’ in Nagios? Plugins in Nagios are different scripts that check the status of a service or host. You’d run them from the command line. Nagios checks the results from its plugins to see the condition of the various hosts and services present in your network.  You can also explain why plugins are necessary for Nagios.  Nagios requires plugins to check the status of the numerous hosts and services present in a network. A plugin verifies the required host and sends the results of its check to Nagios. Nagios then processes the results and determines whether an action is needed or not.  In-Demand Software Development Skills JavaScript Courses Core Java Courses Data Structures Courses Node.js Courses SQL Courses Full stack development Courses NFT Courses DevOps Courses Big Data Courses React.js Courses Cyber Security Courses Cloud Computing Courses Database Design Courses Python Courses Cryptocurrency Courses What is NRPE? NRPE enables you to run plugins on remote Unix and Linux machines. This way, Nagios can monitor local resources such as memory usage and CPU on remote components. Typically, these resources are not given to remote machines; that’s why you’d need to use NRPE.  You can also give an explanation of NRPE architecture for a more detailed answer.  NRPE contains two sections, the NRPE daemon, and the check_NRPE plugin. The former runs on a different computer while the latter remains in the local machine and has an SSL connection between the monitoring machine and the remote machine.  What is a Passive Check?  In Nagios, external processes initiate Passive checks. When they are completed, the results are sent to Nagios. Passive checks help in monitoring asynchronous services. Those services can’t be tracked without regular polling of their status. Passive checks also help Nagios in checking the status of hosts that are behind a firewall as they can’t be verified through a monitoring host.  What are the advantages of using Nagios? Nagios offers plenty of advantages to an organization.  It allows you to plan future upgrades for your existing infrastructure It ensures a technical error in your IT infrastructure has minimum impact It quickly alerts you of any new problems It allows you to monitor the entire system and infrastructure  It coordinates the responses of the technical staff It helps you find out how fast your team responds to technical problems It ensures that SLAs (Service-Level Agreements) of your organization are met What is Icinga? How is it related to Nagios? Icinga is another popular open-source software that helps in monitoring services. It was designed in 2009 to help Nagios, but it has become a separate software.  What is an Active Check? Nagios performs an Active check to poll a device or service for its status information on a scheduled basis.  Can you name a few databases which support Nagios? Many databases support Nagios. They are Oracle, Postgres, Microsoft SQL solutions, and MySQL.  What is Nagios XI? Nagios is the most trusted and most powerful monitoring software. It can help you in monitoring applications, network protocols, systems, services, and metrics. It provides you with all the advantages of Nagios (discussed above) and has a powerful performance.  Explore Our Software Development Free Courses Fundamentals of Cloud Computing JavaScript Basics from the scratch Data Structures and Algorithms Blockchain Technology React for Beginners Core Java Basics Java Node.js for Beginners Advanced JavaScript Is Nagios used to monitor window machines? Yes, Nagios is used to monitor window machines. You can do so by setting-up Nagios for monitoring the required window system and then add a separate server and host for performing the task.  What is OID Nagios? The Simple Network Management Protocol (aka SNMP) uses Object Identifiers for defining the Management Information Base.  What is the Nagios Network Analyzer? The network analyzer is a vital component of Nagios which checks the system for potential dangers. Its quick scan enables the admin to get the required data about the health of the system.  What are the benefits of using Nagios to monitor websites? Nagios can help you monitor websites too. It improves the website’s availability, helps you spot bugs, and you can enhance your site’s performance and avoid online security threats as well with the help of Nagios.  Is Nagios Object-oriented? If so, can you elaborate on what it means? Object-oriented means that you can produce object definitions in Nagios that are inherited from other objects. As Nagios is object-oriented, its relationship with its components remains simple without any intricate details.  Which protocols support Nagios? SMTP Monitoring, POP Monitoring, FTP Monitoring, IPMI Monitoring, DNS Monitoring, and LDAP Monitoring are some of the protocols Nagios supports.  Can you use Nagios for Cloud Monitoring? Yes, you can use Nagios for cloud monitoring. It is one of the most popular monitoring tools available in the market.  What are objects in Nagios? All elements related to the alerting logic and the monitoring process are objects in Nagios.  Name three virtualization platforms that support Nagios. Microsoft Virtual PC, Amazon EC2, and VMware are three of the most popular virtualization platforms supporting Nagios.  What are the object types in Nagios? Nagios has a variety of object types such as host groups, periods, services, hosts, contact, notifications, and commands.  What are the two-state types in Nagios? Soft states and hard states are the two primary state types in Nagios.  Which database format does Nagios support for storing data? Nagios supports the RRD database format for storing status data.  What are the sections of NDO utilities? NDO utilities include FILE2STOCK Utility, NDOMOD Event Broker Module, NDO2DB Daemon, and LOG2NDO Utility.  What are the default credentials in Nagios? The Username and Password are “nagiosadmin” in Nagios as default.  What language does Nagios core use? Nagios core uses PHP and CGI.  What are the required conditions for Nagios to check external commands? Nagios checks for external commands regularly according to the command_check_interval option. In addition to the regular checks, it also checks for external commands when an event handler is executed.  What are the differences between Passive and Active checks? It is one of the most popular Nagios interview questions, so we suggest you prepare the answer thoroughly.  The main difference between Active checks and Passive checks is that Nagios performs the former while an external application performs the latter.  Passive checks monitor services that are located behind a firewall or are asynchronous. Active tests can’t be done on those services or hosts even though Nagios performs them regularly.  How is Nagios related to DevOps? Continuous monitoring is a core component of DevOps and Nagios is a popular tool for the same.  Can you customize charts in Nagios? Yes, you can customize charts through a third-party tool such as Graphite or CACTI. What is the difference between soft and hard states in Nagios? To answer this question, you should define both of these states.  When the results of a host or service are not OK, but it has not been rechecked multiple times according to max_check_attempts, then the error is specified as a Soft error. When a host or service recovers from a Soft Error, it is called Soft Recovery. On the other hand, when the results of a host or service check are not OK even when they have been rechecked several times, according to max_check_attempts, the error is called Hard Error. Recovery from such a kind of error is called Hard Recovery.  upGrad’s Exclusive Software Development Webinar for you – SAAS Business – What is So Different? document.createElement('video'); https://cdn.upgrad.com/blog/mausmi-ambastha.mp4   Which three variables affect inheritance and recursion in Nagios? The three variables affecting recursion and inheritance are Name, Use, and Register. The name is a placeholder for other objects. Use specifies the parent object and Register can either have a value of 1 or 0. If the Register has a value of 1, it means it’s an actual object. If it has a value of 0, it means the object is only a template and isn’t a real object.  What is meant by State Stalking? Let us discuss what State Stalking is. State stalking helps in logging. With State Stalking, Nagios watches a particular service or host and log any changes it notices in the check results. You can also add that State Stalking is quite helpful in the analysis of logs. Without State Stalking, Nagios logs a check only when the state is changed between two checks.  What is Flap Detection in Nagios? When a host or service changes its state too frequently, it is called Flapping. Flapping can lead to many problems, which could, in turn, cause many recovery notifications to arise. Nagios checks if a service or host has started flapping during its status check.  Nagios checks for flapping. It does so by storing the results of the previous 21 checks of the specific service or host first. And it analyzes those results to see how frequent state changes occurred. It determines a percent state change value through that data and compares the same to flapping thresholds. When the percent state change is greater than the high threshold for flapping, the object is said to have started flapping. And when the percent state change is lower than the low threshold for flapping the object is said to have stopped flapping.  How would you explain the ‘Machine is Unreachable’ error? When Nagios fails in finding a path to a specific node, it shows this error. The node might be up, but because Nagios can’t access it, it shows the node as unreachable.  Final Thoughts We hope you found these Nagios interview questions helpful. Be sure to prepare all these questions thoroughly.  If you’re interested to learn more about Nagios, check out upGrad & IIIT-B’s PG Diploma in Full-stack Software Development which is designed for working professionals and offers 500+ hours of rigorous training, 9+ projects, and assignments, IIIT-B Alumni status, practical hands-on capstone projects & job assistance with top firms.  
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by Arjun Mathur

30 Jan'20
Continuous Delivery vs. Continuous Deployment: Difference Between

6.22K+

Continuous Delivery vs. Continuous Deployment: Difference Between

Knowing the difference between continuous delivery vs continuous deployment is paramount in today’s rapidly progressing world. That is because your users should be able to update the software without much hassle.  It is something that you are aware of through your smartphone, laptop, or computer software. Software updates for a wide range of applications are a regular occurrence. Without them happening, developments cannot take place.  Check out our free courses to get an edge over the competition. So, what can you do about it? In this internet era, you should be able to meet your user’s requirements in a matter of time. When you rectify errors or issues quickly, you can retain your clients. At the same time, when you find it challenging to do so, it can cause drowning profits.  So, when you opt for the usual slow and obsolete process of finding, analyzing, and planning methods, you are well out of the market. You have lost the plot altogether. To avoid being left out in the lurch, what you require is agile development.  Check out upGrad’s Advanced Certification in Cyber Security  Opt for agile development Agile development is the process or framework where you can test, plan, and eventually implement your ideas. The best part is that you can do it immediately. Instant results are the order of the day.  Those businesses and companies that have embedded agile development into their processing plans stand to gain from it. When you can achieve continuous delivery as well as constant deployment in your solution delivery pipeline, your firm can release the updates efficiently.  For our readers, who are not aware of the difference between continuous delivery and continuous deployment, then we will try and clarify through this post. Not to mention, you will also learn how they fit into an agile environment.  When you want to understand both continuous delivery and continuous deployment, then you must first understand, continuous integration.  Check out upGrad’s Advanced Certification in Cloud Computing  It is an essential element for agile practice.  An Agile Developer knows the significance of implementing this process because it gives them the ability to manage smaller components. This way, they can design quality software. For agile concepts, all the teams know what is going on, unlike the waterfall concept.  Explore our Popular Software Engineering Courses Master of Science in Computer Science from LJMU & IIITB Caltech CTME Cybersecurity Certificate Program Full Stack Development Bootcamp PG Program in Blockchain Executive PG Program in Full Stack Development View All our Courses Below Software Engineering Courses Developers must use deployment automation tool        That is why developers must consider using automation of continuous deployment at the development stage itself. Solutions should be given to ensure that continuous integration and continuous delivery are smoothly handled through a consumption-based model. What is continuous integration? Continuous integration is a process where, several methodologies are used from several sources, automatically to integrate the code for designing and testing purposes. As a DevOps Developer, when your design code can pass the test, then it is deployed automatically.  Further testing is then conducted on your code like manual exploratory test and load test. You would be surprised to know that the process can take several days. It entirely depends on the requirements.  What is continuous delivery? Continuous delivery enables you to design a high-quality version of your code. This classic version helps you to decide when you want to release your software for your clients, based on the feedback. In most cases, the timing of the release matters depending on the market condition.  Continuous delivery vs. continuous deployment It is the main difference between continuous delivery vs continuous deployment. Continuous deployment is the process where the software to be released undergoes an automated pipeline. Developers need not worry about the release, but rather ensure that the code developed, is regularly tested, updated, and then released. More importantly, it must work fine from the client’s end.  The continuous delivery consists of a time lag before the release of the software. The product gets reviewed, and changes, if any, is done before the release. Continuous deployment involves automated testing throughout the entire process until the release of the product.  Explore Our Software Development Free Courses Fundamentals of Cloud Computing JavaScript Basics from the scratch Data Structures and Algorithms Blockchain Technology React for Beginners Core Java Basics Java Node.js for Beginners Advanced JavaScript How can you consolidate delivery and deployment to attain common goals? It is when some developers get tempted to think that continuous deployment may be advantageous for the software. It depends on the CI/CD practices implemented in your organization.  However, there are some constraints that you might want to beware of before making use of continuous deployment. Market conditions and regulatory compliances, usually restrict IT firms from making use of continuous deployment. The levels of the DevOps concepts implemented in an IT firm also dramatically influences the usage of continuous deployment.  Continuous delivery requires manual code changes, and that can delay in the deadline for deploying the code.  But, there are some benefits to using it. IT firms may want to consider using continuous delivery because of the convenience. It enables IT firms to have a competitive advantage for deploying the code, ably supported by human intelligence.  Developers can come up with many new features that can be designed and ready for implementation. It enables them to develop robust and resilient systems. What this does is, reduces the production costs, and allows developers to improve the quality of the product.  But, continuous delivery and continuous deployment may not be that relevant in some areas of work. You may not require a deployment phase when contributing to a library or designing an artifact. In-Demand Software Development Skills JavaScript Courses Core Java Courses Data Structures Courses Node.js Courses SQL Courses Full stack development Courses NFT Courses DevOps Courses Big Data Courses React.js Courses Cyber Security Courses Cloud Computing Courses Database Design Courses Python Courses Cryptocurrency Courses Likewise, many web applications do not have to come up with a design and deploy phases. These days, there is a new development for designing high-end tools for application release that can effectively manage software releases. Few of them include: Packaging of the applications  The version of the release  When updating the database  Managing the configuration of the server  Rollback and roll forward  Auditing and access for security purposes To summarise, the main difference between continuous delivery vs continuous deployment would be that continuous delivery is the ability to release a version on any platform. On the other hand, continuous deployment is your ability to deploy the versions continuously.  Both the concepts need a framework, where you can work on small, but effective changes that can be implemented immediately in the market. It would help if you learned how your updates had affected the users, in a good and bad way.  You will need to communicate with your clients to achieve what you intend to by finding out how it helped or did not help them. However, to make that, you need to bring value to your users.  upGrad’s Exclusive Software Development Webinar for you – SAAS Business – What is So Different? document.createElement('video'); https://cdn.upgrad.com/blog/mausmi-ambastha.mp4   Do you want to learn more? If you are keen on developing your DevOps skills and learning more about the continuous delivery vs continuous deployment, then we would recommend you take up courses taught from an online higher education platform.  Only a handful of these online education platforms have tie-ups and partnerships with universities like IIT Madras, IIIT-B, MICA, NMIMS, and Cambridge Judge Business School Executive Education. When they certify you, it elevates your knowledge and enables you to stand out from the crowd. The above-mentioned reasons are why an online course in full-stack software development can kickstart your career in tech, especially if you are looking to switch lanes.
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by Rohit Sharma

05 Feb'20