一个表TABLEA有3个字段,用SQL语句找出FIELDA,FIELDB,FIELDC各自完全相同的记录
如题
问题点数:50、回复次数:5Top
1 楼Montaque(每天回答两个问题)回复于 2002-08-31 20:35:42 得分 0
Select * from tbltemp where fielda=fieldb and fieldb=fieldc
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Montaque==Digitalboy==Houyongfeng==Monkey
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2 楼kaidu(Roger)回复于 2002-08-31 20:43:31 得分 0
SELECT * FROM TABLEA WHERE FIELDA=FIELDB AND FIELDA=FIELDCTop
3 楼blue_pencil(blue_pencil)回复于 2002-09-02 09:02:00 得分 0
各位,不好意思,我的意思是
fielda fieldb fieldc
a b c
b c a
c b a
b c a
a b c
result
a b c
a b c
b c a
b c a
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4 楼sunmingdong()回复于 2002-09-02 11:35:03 得分 0
SELECT * FROM tablea group by fielda,fieldb,fieldc having count(*)>1Top
5 楼sunmingdong()回复于 2002-09-02 11:52:06 得分 50
SELECT *,重复次数=count(*) FROM tablea group by fielda,fieldb,fieldc having count(*)>1
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