數據插入不覆蓋更新，設置定時任務

數據插入不覆蓋更新

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是否開啓

show variables like '%sche%';

 

將事件計劃開啓

set global event_scheduler=1;

 

建立存儲過程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;

 

天天定時執行任務，設置第一次執行時間爲'2018-11-15 03:00:00'，而且天天執行一次

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();

 

查詢任務

select * from mysql.event

 

關閉事件任務

alter event e_add_user_role ON COMPLETION PRESERVE DISABLE;

 

開啓事件任務

alter event e_add_user_role ON COMPLETION PRESERVE ENABLE;

 

刪除任務計劃

drop event if exists e_add_user_role;