What are the different types of SQL commands?

SQL commands can be categorized into five main types: Data Definition Language (DDL) commands such as CREATE, ALTER, and DROP, which are used to define and modify database structures; Data Manipulation Language (DML) commands like SELECT, INSERT, UPDATE, and DELETE, which are used to manipulate data within the database; Data Query Language (DQL) commands such as SELECT, which are used to retrieve data from the database; Data Control Language (DCL) commands like GRANT and REVOKE, which are used to grant or revoke permissions and privileges; and Transaction Control Language (TCL) commands like COMMIT and ROLLBACK, which are used to manage transactions within the database. Each type of command serves a specific purpose in interacting with and managing a database.

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