SQL Tutorial
SQL (Structured Query Language) is a programming language which is used to manage data stored in relational databases like MySQL, MS Access, SQL Server, Oracle, Sybase, Informix, Postgres etc.
Our SQL tutorial helps you learn SQL (Structured Query Language) in simple and easy steps so that you can start your database programming quickly. It covers most of the important concepts related to SQL for a basic to advanced understanding of SQL and to get a feel of how SQL works.
SQL is a database computer language designed for the retrieval and management of data in a relational databases like MySQL, MS Access, SQL Server, Oracle, Sybase, Informix, Postgres etc. SQL stands for Structured Query Language. SQL was developed in the 1970s by IBM Computer Scientists.
SQL is not a database management system, but it is a query language which is used to store and retrieve the data from a database or in simple words SQL is a language that communicates with databases.
SQL Examples
Consider we have following CUSTOMERS table which stores customer's ID, Name, Age, Salary, City and Country −
