What is a Database?
A database is an organized collection of data so that it can be easily accessible and managed. You can arrange data in tables, lines, columns, and indexes to facilitate the search for relevant information. Database Managers Create a database so that a set of software provides access to all users. The main objective of the database is to exploit a large amount of information by storing, recovering, and managing the data.
What is a database management system?
A database management system is essentially a computerized data-keeping system. Users of the system are given facilities to perform several kinds of operations on such a system for either manipulation of the data in the database or the management of the database structure itself.
SQL is used to interact with database systems such as Oracle, MySQL, PostgreSQL, and Microsoft SQL Server. SQL means the standard query language for relational database management systems.
Why you should learn?
Why should you learn SQL? Well, it is one of the essential skills for programmers, application developers, and professionals in the IT field. Like Linux, it is a skill that will serve you longer than any other language, frame, or programming library.
Most applications in the real world use relational data in one or another way and SQL is a query language to work with the data
Resources:
https://www.javatpoint.com/dbms-tutorial
https://www.guru99.com/dbms-tutorial.html
https://www.geeksforgeeks.org/dbms/
https://afteracademy.com/tech-interview/theoretical-questions/dbms
https://www.relationaldbdesign.com/database-design/module1/intro-relational-database-design.php
https://www.tutorialspoint.com/dbms/index.htm
https://www.w3schools.com/sql/default.asp(for SQL)
https://www.geeksforgeeks.org/sql-tutorial/(for SQL)
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