MySQL游标循环示范

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

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