mysql之事件的开启和调用

1、检测事件是否开启

mysql> show variables like 'event_scheduler';
+-----------------+-------+
| Variable_name | Value |
+-----------------+-------+
| event_scheduler | OFF |
+-----------------+-------+
1 row in set (0.00 sec)

2、开启事件

mysql> show variables like 'event_scheduler';
+-----------------+-------+
| Variable_name | Value |
+-----------------+-------+
| event_scheduler | ON |
+-----------------+-------+
1 row in set (0.00 sec)

 3、创建一个存储过程

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delimiter // create procedure test() begin update test fdCreate = now(); end;

 4、创建一个事件

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create event if not exists e_test on schedule every 30 second on completion preserve do call test();

 5、关闭或开启执行事件

1	alter event event_name on completion preserve [enable | disable]

 6、删除事件

1	drop event event_name;

mysql> show variables like 'event_scheduler';
+-----------------+-------+
| Variable_name | Value |
+-----------------+-------+
| event_scheduler | OFF |
+-----------------+-------+
1 row in set (0.00 sec)

2、开启事件

mysql> show variables like 'event_scheduler';
+-----------------+-------+
| Variable_name | Value |
+-----------------+-------+
| event_scheduler | ON |
+-----------------+-------+
1 row in set (0.00 sec)

 3、创建一个存储过程

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delimiter // create procedure test() begin update test fdCreate = now(); end;

 4、创建一个事件

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create event if not exists e_test on schedule every 30 second on completion preserve do call test();

 5、关闭或开启执行事件

1	alter event event_name on completion preserve [enable | disable]

 6、删除事件

1	drop event event_name;