我们如何创建一个在指定时间段后执行且指定时间段后结束的 MySQL 循环事件?
众所周知,循环事件意味着它将在常规时间间隔后执行并在指定时间过期。为了说明创建此类事件,我们使用以下示例,其中我们将创建一个每分钟执行一次且一小时后过期的事件 −
mysql> CREATE EVENT testing_event10 ON SCHEDULE EVERY 1 MINUTE STARTS CURRENT_TIMESTAMP ENDS CURRENT_TIMESTAMP + INTERVAL 1 HOUR DO INSERT INTO event_message(message,generated_at) Values('Recrring evnts',NOW()); Query OK, 0 rows affected (0.00 sec) mysql> Select * from event_message; +----+----------------+---------------------+ | ID | MESSAGE | Generated_at | +----+----------------+---------------------+ | 1 | Hello | 2017-11-22 17:05:22 | | 2 | Hi | 2017-11-22 17:08:37 | | 3 | Recrring evnts | 2017-11-22 20:14:00 | | 4 | Recrring evnts | 2017-11-22 20:15:00 | | 5 | Recrring evnts | 2017-11-22 20:16:00 | | 6 | Recrring evnts | 2017-11-22 20:17:00 | | 7 | Recrring evnts | 2017-11-22 20:18:00 | | 8 | Recrring evnts | 2017-11-22 20:19:00 | +----+----------------+---------------------+ 8 rows in set (0.00 sec)
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