What is SQL

Structure Query Language :- SQL is a language. It is provides an interface to relational database system. SQL was developed by IBM in 1970 used to store and manage data in relational database management system.

SQL also used to preform all types of operation likes, Inserting, Updating, Deleting, Creating and Modifying tables.

Processing capabilities of SQL :- SQL has a several commands for data processing. It is used for in following purposes.

  • Creating, Deleting and modifying table structure.
  • Defining a relationship between two or more table.
  • Inserting data into the table.
  • Updating data.
  • Controlling a database.

Basic SQL