MySQL触发器运用于迁移和同步数据的实例教程

 mysql触发器监控mysql数据表记录删除操作 DELIMITER $$

USE `DB_Test`$$ DROP TRIGGER /*!50032 IF EXISTS */ `SYS_OPM_trigger`$$ CREATE /*!50017 DEFINER = 'root'@'%' */ TRIGGER `SYS_OPM_trigger` AFTER DELETE ON `OPM_Alarm` FOR EACH ROW BEGIN DECLARE str VARCHAR(40000); SET str=CONCAT(old.AlarmId,'@',old.AlarmCode,'@',old.AlarmTypeId,'@',old.AlarmLevelId,'@', old.AlarmObjectCode,'@',old.AlarmStatus,'@',old.AlarmHandleUser,'@',old.AlarmHandleTime,'@', old.AddTime,'@',old.ParkUserId,'@',old.BerthCode,'@',old.BargainOrderCode,'@',old.BerthStartTime); INSERT INTO OPM_AlarmAction_log(UserName,Client_IP,Delete_before_key,Delete_Date) VALUES(SUBSTRING_INDEX(USER(),'@',1),SUBSTRING_INDEX(USER(),'@',-1), str, NOW()); END; $$ DELIMITER ;

删除前 添加原记录备份到另一记录表

DELIMITER $$ USE `DB_Test`$$ DROP TRIGGER /*!50032 IF EXISTS */ `InsertOPM_Alarm_trigger`$$ CREATE /*!50017 DEFINER = 'root'@'%' */ TRIGGER `InsertOPM_Alarm_trigger` BEFORE DELETE ON `OPM_Alarm` FOR EACH ROW BEGIN INSERT INTO OPM_Alarm_copy (AlarmId,AlarmCode,AlarmTypeId,AlarmLevelId,AlarmObjectCode,AlarmStatus,AlarmHandleUser, AlarmHandleTime,ADDTIME,ParkUserId,BerthCode,BargainOrderCode,BerthStartTime) VALUES (old.AlarmId,old.AlarmCode,old.AlarmTypeId,old.AlarmLevelId,old.AlarmObjectCode,old.AlarmS tatus,old.AlarmHandleUser, old.AlarmHandleTime,old.ADDTIME,old.ParkUserId,old.BerthCode,old.BargainOrderCode,old.Bert hStartTime); END; $$ DELIMITER ;

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