MySQL游标循环示例_MySQL

MySQL游标循环示例

如果用in语句，感觉很慢，跑了好久都没有结果，用存储过程删除可以把握

进度，这个是MySQL游标循环的示例代码，避免以后经常找，记录上来。

CREATE DEFINER=`root`@`%` PROCEDURE `bi`.`clean_data`()

READS SQL DATA

BEGIN

declare v_imei varchar(128);

declare stop int default 0;

declare cur cursor for (select imei from bi.tmp_imei);

declare CONTINUE HANDLER FOR SQLSTATE '02000' SET stop=1;

OPEN cur;

FETCH cur INTO v_imei;

WHILE stop <> 1 DO

delete from bi.tmp_dt_fee_user_info where imei=v_imei;

FETCH cur INTO v_imei;

END WHILE;

CLOSE cur;

END