mysql5.1之前

代码

/* 开启event_scheduler，也可以设置为on */
set global event_scheduler = 1 ;
/* 创建简单的任务，每分钟执行一次，从一个表取数据插入到另一个表，也可以定时取，可以参看下面文档，此处为简单例子 */
CREATE EVENT MyEvent
ON SCHEDULE EVERY 1 MINUTE
DO
INSERT INTO list_test (字段1,字段1,字段1,字段1,字段1) select 字段1,字段1,字段1,字段1,字段1 from 表2 where id = 510 ;
/*每天固定时间执行*/
CREATE EVENT EVENT_ADD_FOR20_ENOUGH
ON SCHEDULE EVERY 1 DAY
STARTS TIMESTAMP '2009-12-18 02:58:00'/×MYSQL注意时区设置，默认非中国时区×/
DO
SQL语句

代码

DELIMITER $$

DROP PROCEDURE IF EXISTS `mystock`.`TEST_KKK`$$

CREATE PROCEDURE `mystock`.`TEST_KKK`()
     /* LANGUAGE SQL
    | [NOT] DETERMINISTIC
    | { CONTAINS SQL | NO SQL | READS SQL DATA | MODIFIES SQL DATA }
    | SQL SECURITY { DEFINER | INVOKER }
    | COMMENT 'string' */
     BEGIN
     DECLARE NUM INTEGER DEFAULT 0 ;

     DECLARE $A INT ;

     SELECT ( 20 - COUNT (STOCK_CODE)) as number into NUM FROM get_stock_list WHERE FLAG = 0 AND STIME = curdate();

     IF NUM > 0 THEN

     PREPARE STMP FROM ' INSERT INTO get_stock_list (stock_code,stock_name,close,raises,stime) select stock_code,stock_name,close,result1,selectd from choice_stock  where stock_code  not in (select stock_code from get_stock_list where stime = curdate() and flag = 0) and selectd = curdate() and selectd = curdate() order by id limit ? ' ;

     SET @A = NUM;

     EXECUTE STMP USING @A ;

     END IF ;
     END $$

DELIMITER ;

代码

DELIMITER $$

DROP FUNCTION IF EXISTS `mystock`.`FUNCTION_ADD_STOCK_FOR20`$$

CREATE DEFINER = `root`@`localhost` FUNCTION `FUNCTION_ADD_STOCK_FOR20`() RETURNS int ( 11 )
BEGIN
     DECLARE NUM,ANOTHER INTEGER ;
     SELECT COUNT (STOCK_CODE) as number into NUM FROM get_stock_list WHERE FLAG = 0 AND STIME = curdate();
     if (NUM < 20 )
     THEN
         SET ANOTHER = 20 - NUM;
         INSERT INTO get_stock_list (stock_code,stock_name, close ,raises,stime) select stock_code,stock_name, close ,result1,selectd from choice_stock where stock_code   not in ( select stock_code from get_stock_list where stime = curdate() and flag = 0 ) order by id LIMIT 10 ;
     END IF ;
     RETURN NUM;
     END $$

DELIMITER ;

出处：http://blog.csdn.net/nadakiss/article/details/6545654

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