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MySQL 5.0 Reference Manual :: 21 Stored Procedures and Functions :: 21.2 Stored Routine Syntax :: 21.2.3 DROP PROCEDURE and DROP FUNCTION
Syntax
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- 21.2 Stored Routine Syntax
- 21.2.1 CREATE PROCEDURE and CREATE FUNCTION Syntax
- 21.2.2 ALTER PROCEDURE and ALTER FUNCTION Syntax
- 21.2.3 DROP PROCEDURE and DROP FUNCTION Syntax
- 21.2.4 CALL Statement Syntax
- 21.2.5 BEGIN ... END Compound Statement Syntax
- 21.2.6 DECLARE Statement Syntax
- 21.2.7 Variables in Stored Routines
- 21.2.8 Conditions and Handlers
- 21.2.9 Cursors
- 21.2.10 Flow Control Constructs
- 21.2.11 RETURN Statement Syntax
DROP {PROCEDURE | FUNCTION} [IF EXISTS] sp_name
This statement is used to drop a stored procedure or function.
That is, the specified routine is removed from the server. As of
MySQL 5.0.3, you must have the ALTER ROUTINE
privilege for the routine. (That privilege is granted
automatically to the routine creator.)
The IF EXISTS clause is a MySQL extension. It
prevents an error from occurring if the procedure or function
does not exist. A warning is produced that can be viewed with
SHOW WARNINGS.
DROP FUNCTION is also used to drop
user-defined functions (see Section 28.2.3, “DROP FUNCTION Syntax”).
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