mysql 分组行号查询
2019独角兽企业重金招聘Python工程师标准>>> 
SELECT @row_number:=CASEWHEN @customer_no = customerNumber THEN @row_number + 1ELSE 1END AS num,@customer_no:=customerNumber as CustomerNumber,paymentDate,amount
FROMpayments,(SELECT @customer_no:=0,@row_number:=0) as t
ORDER BY customerNumber;
转载于:https://my.oschina.net/u/3238650/blog/3023313
本文来自互联网用户投稿，文章观点仅代表作者本人，不代表本站立场，不承担相关法律责任。如若转载，请注明出处。 如若内容造成侵权/违法违规/事实不符，请点击【内容举报】进行投诉反馈！