DEALLOCATE / DROP PREPARE

Syntax

{DEALLOCATE | DROP} PREPARE stmt_name

Description

To deallocate a prepared statement produced with PREPARE, use a DEALLOCATE PREPARE statement that refers to the prepared statement name.

A prepared statement is implicitly deallocated when a new PREPARE command is issued. In that case, there is no need to use DEALLOCATE.

Attempting to execute a prepared statement after deallocating it results in an error, as if it was not prepared at all:

ERROR 1243 (HY000): Unknown prepared statement handler (stmt_name) given to EXECUTE

If the specified statement has not been PREPAREd, an error similar to the following will be produced:

ERROR 1243 (HY000): Unknown prepared statement handler (stmt_name) given to DEALLOCATE PREPARE

Example

See example in PREPARE.

See Also

• PREPARE Statement
• EXECUTE Statement
• EXECUTE IMMEDIATE