SQL knowledge - Code World

SQL knowledge

Others 2022-04-22 00:22:04 views: 0

DDL – Data Definition Language
DML – Data Manipulation Language
DCL – Data Control Language
TCL – Transaction Control Language

sql command classification:

DDL:create,drop,alter
DML:select,insert,upodate,delete
DCL:grant,revoke
TCL:COMMIT,SAVEPOINT,ROLLBACK,SET TRANSACTION

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