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:

  SQL

  Copy

  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:

  SQL

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  DROP PROCEDURE IF EXISTS myprocedure;

  Query OK, 0 rows affected (0.00 sec)

• This command causes implicit commits. Refer to COMMIT for more information.

• Refer to the Permission Matrix for the required permission.

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;

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 Helios workspace.

USE db1;

SHOW FUNCTIONS;

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

USE db2;

DROP PROCEDURE db1.myprocedure;

USE db1;

SHOW FUNCTIONS;

Query OK, 0 rows affected (0.07 sec)

Related Topics

• CREATE PROCEDURE

• SHOW CREATE FUNCTION