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1.Data Definition Language (DDL) – to define and modify the structure of a database.
2.Data Manipulation Language (DML) – to access, manipulate, and modify data in a database.
3.Data Control Language (DCL) – to control user access to the data in the database and give or revoke privileges to a specific user or a group of users.
4.Transaction Control Language (TCL) – to control transactions in a database.
5.Data Query Language (DQL) – to perform queries on the data in a database to retrieve the necessary information from it.