Mega Code Archive
The ALTER statement lets you change the characteristics of a stored procedure
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It has the following syntax:
ALTER PROCEDURE [<database>.]<procedure name> <characteristics>
The ALTER statement can change any of the characteristics used to create the procedure.
The following example changes the SQL SECURITY and COMMENT on the myProc procedure.
mysql>
mysql> DELIMITER //
mysql> CREATE PROCEDURE myProc (IN in_count INT)
-> BEGIN
-> DECLARE count INT default 0;
->
-> increment: LOOP
-> SET count = count + 1;
-> IF count < 20 THEN ITERATE increment; END IF;
-> IF count > in_count THEN LEAVE increment;
-> END IF;
-> END LOOP increment;
->
-> SELECT count;
-> END
-> //
Query OK, 0 rows affected (0.00 sec)
mysql> DELIMITER ;
mysql>
mysql> call myProc(5);
+-------+
| count |
+-------+
| 20 |
+-------+
1 row in set (0.02 sec)
Query OK, 0 rows affected (0.02 sec)
mysql>
mysql> ALTER PROCEDURE myProc SQL SECURITY INVOKER
-> COMMENT 'This is my procedure';
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql> SELECT * FROM mysql.proc WHERE name = 'myProc'\G
*************************** 1. row ***************************
db: test
name: myProc
type: PROCEDURE
specific_name: myProc
language: SQL
sql_data_access: CONTAINS_SQL
is_deterministic: NO
security_type: INVOKER
param_list: IN in_count INT
returns:
body: BEGIN
DECLARE count INT default 0;
increment: LOOP
SET count = count + 1;
IF count < 20 THEN ITERATE increment; END IF;
IF count > in_count THEN LEAVE increment;
END IF;
END LOOP increment;
SELECT count;
END
definer: root@localhost
created: 2007-07-23 18:58:35
modified: 2007-07-23 18:58:35
sql_mode:
comment: This is my procedure
1 row in set (0.00 sec)
mysql>
mysql> drop procedure myProc;
Query OK, 0 rows affected (0.00 sec)
mysql>
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