Oracle多选

Question

 CID    F_ID    NME
 1      A      QR
 1      B      QB
 2      A      QR
 3      B      QB
 4      A      QR
 4      B      QB

结果应采用以下方式

CID    F_ID    NME
1       A     QR
1       B     QB
4       A     QR
4       B     QB

CID是CUST ID，F_ID是FUTURE_ID，NME是NAME。

查询结果应仅返回两个 F_ID-A和B

Answer 1

这是编写此查询的一种典型方式：

SELECT t1.CID, t1.F_ID, t1.NME
FROM yourTable t1
INNER JOIN
(
    SELECT CID
    FROM yourTable
    WHERE F_ID IN ('A', 'B')
    GROUP BY C_ID
    HAVING MIN(F_ID) <> MAX(F_ID)
) t2
    ON t1.CID = t2.CID;