数据插入不覆盖更新

INSERT INTO user_role(

user_id,

role_id,

type,

is_del

)SELECT

zgh as user_id,

126 as role_id,

2 as type,

0 as is_del

FROM sugon_jzg_jbxx b

where not exists (select 1 from user_role a where a.user_id=b.zgh)

 

查看event是否开启

show variables like '%sche%';

 

将事件计划开启

set global event_scheduler=1;

 

创建存储过程add_user_role

CREATE PROCEDURE add_user_role()

BEGIN

INSERT INTO user_role(

user_id,

role_id,

type,

is_del

)SELECT

zgh as user_id,

126 as role_id,

2 as type,

0 as is_del

FROM sugon_jzg_jbxx b

where not exists (select 1 from user_role a where a.user_id=b.zgh);

END;

 

每天定时执行任务，设置第一次执行时间为'2018-11-15 03:00:00'，并且每天执行一次

create event if not exists e_add_user_role

on schedule every 1 day starts '2018-11-15 03:00:00'

do call add_user_role();

 

查询任务

select * from mysql.event

 

关闭事件任务

alter event e_add_user_role ON COMPLETION PRESERVE DISABLE;

 

开启事件任务

alter event e_add_user_role ON COMPLETION PRESERVE ENABLE;

 

删除任务计划

drop event if exists e_add_user_role;