题目:
表名 TEST 数据:
TID VID VName VNumber
1 1 AA 10
2 1 AA 8
3 1 AA 2
4 2 BB 90
5 2 BB 70
6 2 BB 20要求按照VID 和 VName分组,取出数据:
TID VID Vname Vnumber
2 1 AA 8
5 2 BB 70也就是取出每组除了开始一条和最后一条的其他所有信息。
表名 TEST 数据:
TID VID VName VNumber
1 1 AA 10
2 1 AA 8
3 1 AA 2
4 2 BB 90
5 2 BB 70
6 2 BB 20要求按照VID 和 VName分组,取出数据:
TID VID Vname Vnumber
2 1 AA 8
5 2 BB 70也就是取出每组除了开始一条和最后一条的其他所有信息。
FROM TB T1
WHERE EXISTS(
SELECT 1 FROM TB T2 WHERE T2.VID=T1.VID AND T2.VNAME=T1.VNAME AND T2.TID<T1.TID
) AND EXISTS(
SELECT 1 FROM TB T2 WHERE T2.VID=T1.VID AND T2.VNAME=T1.VNAME AND T2.TID>T1.TID
)
FROM TB t
WHERE TID != ( SELECT MIN(Tid)
FROM TB
WHERE Vid = t.VID
AND [VName] = t.[VName]
)
AND Tid != ( SELECT MAX(Tid)
FROM TB
WHERE Vid = t.VID
AND [VName] = t.[VName]
)
FROM TB t
WHERE EXISTS
( SELECT 1 FROM TB WHERE T.TID>MIN(TID) AND T.TID<MAX(T.TID) AND Vid = t.VID AND [VName] = t.[VName] GROUP BY VNAME,VID)
union all
select * from(select px=row_number()over(partition by VID ,VName order by TID desc),* from tb)t where px<>1