สร้าง stored procedure ก่อน:
mysql> DELIMITER // mysql> CREATE PROCEDURE ExtenddatesWithMonthdemo(IN date1 datetime, IN NumberOfMonth int) BEGIN SELECT DATE_ADD(date1, INTERVAL NumberOfMonth MONTH) AS ExtendDate; END; // Query OK, 0 rows affected (0.20 sec) mysql> DELIMITER ;
ตรวจสอบด้วย SHOW CREATE PROCEDURE:
mysql> SHOW CREATE PROCEDURE ExtenddatesWithMonthdemo;
ผลลัพธ์แสดงรายละเอียด stored procedure:
+--------------------------+--------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+--------------------+ | Procedure | sql_mode | Create Procedure | character_set_client | collation_connection | Database Collation | +--------------------------+--------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+--------------------+ | ExtenddatesWithMonthdemo | STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION | CREATE DEFINER = `root`@`%` PROCEDURE `ExtenddatesWithMonthdemo`(IN date1 datetime, IN NumberOfMonth int ) BEGIN SELECT DATE_ADD(date1,INTERVAL NumberOfMonth MONTH) AS ExtendDate; END | utf8 | utf8_general_ci | utf8_general_ci | +--------------------------+--------------------------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+----------------------+----------------------+--------------------+ 1 row in set (0.00 sec)
เรียกใช้งาน:
mysql> call ExtenddatesWithMonthdemo('2019-02-13',6);ผลลัพธ์
+---------------------+ | ExtendDate | +---------------------+ | 2019-08-13 00:00:00 | +---------------------+ 1 row in set (0.10 sec) Query OK, 0 rows affected (0.12 sec)
