MySql数据库 事件以及函数操作

• 查看事件调度器是否开启

show variables like 'event_scheduler';

• 开启事件调度器

　set global event_scheduler = on;

• 查询所有时间的状态

SELECT
	EVENT_CATALOG,
	EVENT_SCHEMA,
	EVENT_NAME,
	DEFINER,
	EVENT_DEFINITION,
	EVENT_TYPE,
	SQL_MODE,
	STATUS,
	EXECUTE_AT,
	INTERVAL_VALUE,
	INTERVAL_FIELD,
	STARTS,
	ENDS,
	ON_COMPLETION,
	CREATED,
	LAST_ALTERED,
	LAST_EXECUTED,
	EVENT_COMMENT
FROM
	information_schema. EVENTS
WHERE
	BINARY EVENT_SCHEMA = 'HMDB'
ORDER BY
	EVENT_NAME;

• 开启某个事件

ALTER EVENT eventForOrderMainHistory ENABLE

• 查询（hmdb数据库）所有的事件

SELECT
	EVENT_CATALOG,
	EVENT_SCHEMA,
	EVENT_NAME,
	DEFINER,
	EVENT_DEFINITION,
	EVENT_TYPE,
	SQL_MODE,
	STATUS,
	EXECUTE_AT,
	INTERVAL_VALUE,
	INTERVAL_FIELD,
	STARTS,
	ENDS,
	ON_COMPLETION,
	CREATED,
	LAST_ALTERED,
	LAST_EXECUTED,
	EVENT_COMMENT
FROM
	information_schema. EVENTS
WHERE
	EVENT_SCHEMA = 'hmdb'
ORDER BY
	EVENT_NAME

• 开启某个事件

ALTER EVENT eventForOrderMainHistory ENABLE

• 删除事件

　drop event event_name;

• 查询所有事件的状态

SELECT
	EVENT_CATALOG,
	EVENT_SCHEMA,
	EVENT_NAME,
	DEFINER,
	EVENT_DEFINITION,
	EVENT_TYPE,
	SQL_MODE,
	STATUS,
	EXECUTE_AT,
	INTERVAL_VALUE,
	INTERVAL_FIELD,
	STARTS,
	ENDS,
	ON_COMPLETION,
	CREATED,
	LAST_ALTERED,
	LAST_EXECUTED,
	EVENT_COMMENT
FROM
	information_schema. EVENTS
WHERE
	BINARY EVENT_SCHEMA = 'HMDB'
ORDER BY
	EVENT_NAME;

• 删除函数

 DROP PROCEDURE IF EXISTS OrderMainToHistory_copy

• 创建函数

CREATE PROCEDURE `OrderMainToHistory_new`()
BEGIN
	INSERT INTO order_main_history  SELECT * from order_main WHERE  DICT_ORDER_STATUS='CLOSE' AND NOW() >  date_add(CREATE_DATE, interval 1 MONTH) ;
-- 删除入创建了一个月 并且已经归档的工单。
    DELETE from ORDER_MAIN  WHERE DICT_ORDER_STATUS='CLOSE' AND NOW() >  date_add(CREATE_DATE, interval 1 MONTH);
END