复制代码 代码如下:
SELECT
*
FROM
(
SELECT
userid,
classid,
remark,
ROW_NUMBER () OVER (
PARTITION BY userid,
classid
ORDER BY
addtime DESC
) AS row_bank
FROM
Eng24VIPCourseIntention
) AS ta
WHERE
row_bank = 1
==========================
PARTITIONBYuserid,classid 这里是按什么分组， 注意一下。
原创文章，作者：bd101bd101，如若转载，请注明出处：https://blog.ytso.com/tech/database/234545.html