Removes a single stored procedure from the specified database.

Syntax

DROP PROCEDURE [IF EXISTS] { procedure_name | database_name.procedure_name }

Remarks

Only one stored procedure can be removed using the DROP PROCEDURE command.

If DROP PROCEDURE is executed for a procedure that does not exist, the following error will occur:

DROP PROCEDURE myprocedure;
ERROR 1998 (HY000): Function 'db1.myprocedure' doesn't exist

However, if the IF EXISTS condition is used and the procedure does not exist, no error will occur:

DROP PROCEDURE IF EXISTS myprocedure;
Query OK, 0 rows affected (0.00 sec)

Examples

Dropping a Procedure in the Current Database

The following example removes an existing function from the current database.

SHOW FUNCTIONS;
+------------------+------------------+
| Functions_in_db1 | Function Type    |
+------------------+------------------+
| myprocedure      | Stored Procedure |
+------------------+------------------+
1 row in set (0.00 sec)

DROP PROCEDURE myprocedure;
Query OK, 0 rows affected (0.05 sec)

SHOW FUNCTIONS;
Query OK, 0 rows affected (0.07 sec)

Dropping a Procedure in Another Database

The following example removes an existing stored procedure while connected to another database in your SingleStore DB cluster.

USE db1;

Database changed

SHOW FUNCTIONS;
+------------------+------------------+
| Functions_in_db1 | Function Type    |
+------------------+------------------+
| myprocedure      | Stored Procedure |
+------------------+------------------+
1 row in set (0.00 sec)

USE db2;

Database changed

DROP PROCEDURE db1.myprocedure;
Query OK, 0 rows affected (0.05 sec)

USE db1;

Database changed

SHOW FUNCTIONS;
Query OK, 0 rows affected (0.07 sec)

Related Topics

• CREATE PROCEDURE
• SHOW CREATE FUNCTION

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