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removing duplicate values from a table

 
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mfuser
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Joined: 01 Mar 2005
Posts: 105
Topics: 58
PostPosted: Mon Jul 03, 2006 7:05 am    Post subject: removing duplicate values from a table Reply with quote
Members,

I want to output all the duplicate records from a table assuming ITEMNO,ITEMNAME are character type data and ITEMQUANTITY being numeric data.Can anybody help me out in the requirement ?
Code:

INPUT

ITEMNO ITEMNAME ITEMQUANTITY
------ -------- ------------
01     A        10
01     A        10
01     A        10
02     B        20
04     C        20
04     C        30
04     C        20
06     D        40
07     C        30
06     D        40

DESIRED OUTPUT

ITEMNO ITEMNAME ITEMQUANTITY
------ -------- ------------
01     A        10
01     A        10
01     A        10
04     C        20
04     C        20
06     D        40
06     D        40
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kolusu
Site Admin
Site Admin


Joined: 26 Nov 2002
Posts: 12383
Topics: 75
Location: San Jose
PostPosted: Mon Jul 03, 2006 8:14 am    Post subject: Reply with quote
mfuser,

Try this untested Sql


Code:

SELECT *
  FROM TABLE
 WHERE (ITEM_NO,ITEM_NAME,ITEM_QTY) IN (SELECT ITEM_NO
                                              ,ITEM_NAME
                                              ,ITEM_QTY
                                          FROM TABLE
                                         GROUP BY ITEM_NO
                                                 ,ITEM_NAME
                                                 ,ITEM_QTY
                                         HAVING COUNT(*) > 1)
 ;


Hope this helps...

Cheers

Kolusu
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