What is SQL and what are its main components?

beginner

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DDL (Data Definition Language): CREATE, ALTER, DROP, TRUNCATE - used to define database structure
DML (Data Manipulation Language): SELECT, INSERT, UPDATE, DELETE - used to manipulate data
DCL (Data Control Language): GRANT, REVOKE - used to control access permissions
TCL (Transaction Control Language): COMMIT, ROLLBACK, SAVEPOINT - used to manage transactions

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