mysql开启定时调度任务执行

Posted 2022-08-03 健康平安的活着

一 开启事件配置

1.1 开启事件配置

show variables like '%event_sche%'

 1.临时会话的修改，注意mysql服务重新启动将失效

 set global event_scheduler=1

2.在/etc/my.cnf配置文件中进行配置：event_scheduler=1，然后重新启动mysql服务

# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.
[client]
port = 3306
default-character-set=utf8

[mysqld]
# 一般配置选项
basedir = /usr/local/mysql-5.7.29
datadir = /usr/local/mysql-5.7.29/data
default-time-zone=+08:00
event_scheduler=1
port = 3306
character-set-server=utf8
default_storage_engine = InnoDB
sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
explicit_defaults_for_timestamp=true

二 案例演示

1.新建存储过程

CREATE  PROCEDURE test_d2()
BEGIN
 
DROP TABLE IF EXISTS test_ddd;
/*************************************/
CREATE table test_ddd AS SELECT NOW()
;
END

2.设置定时计划

1.每5秒执行一次

DROP EVENT IF EXISTS hh;
create event hh
ON SCHEDULE EVERY 5 SECOND STARTS TIMESTAMP '2022-07-22 01:00:00'
ON COMPLETION PRESERVE
DO
begin
CALL test_d2();
end

2.设置指定时刻执行

 drop event if   exists t_event_name  ;
 create event t_event_name
 on schedule at '2022-07-22 09:07:00' on completion preserve
 do call test_d2();

MYSQL 第九章 视图、索引、存储过程和触发器 - zzzzy09 - 博客园