在工作中看到開大的寫的SQL如下:
SELECT * FROM `test`.`tbl_live_user_campaign_status` WHERE campaign_id = 1 AND live_uid = XXXX ORDER BY `test`.`tbl_live_user_campaign_status`.`id` LIMIT 1;
我覺得可以省略為:
SELECT * FROM `test`.`tbl_live_user_campaign_status` WHERE campaign_id = 1 AND live_uid = XXXX limit 1;