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13.1.8. DROP TABLE Syntax

DROP [TEMPORARY] TABLE [IF EXISTS]
    tbl_name [, tbl_name] ...
    [RESTRICT | CASCADE]

DROP TABLE removes one or more tables. You must have the DROP privilege for each table. All table data and the table definition are removed, so be careful with this statement!

Note that for a partitioned table, DROP TABLE permanently removes the table definition, all of its partitions, and all of the data which was stored in those partitions. It also removes the partitioning definition (.par) file associated with the dropped table.

Use IF EXISTS to prevent an error from occurring for tables that do not exist. A NOTE is generated for each non-existent table when using IF EXISTS. See Section 13.5.4.28, “SHOW WARNINGS Syntax”.

RESTRICT and CASCADE are allowed to make porting easier. For the moment, they do nothing.

Note: DROP TABLE automatically commits the current active transaction, unless you use the TEMPORARY keyword.

The TEMPORARY keyword has the following effects:

  • The statement drops only TEMPORARY tables.

  • The statement does not end an ongoing transaction.

  • No access rights are checked. (A TEMPORARY table is visible only to the client that created it, so no check is necessary.)

Using TEMPORARY is a good way to ensure that you do not accidentally drop a non-TEMPORARY table.


 
 
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