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DB2 query for the distinct set

 
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tecnokrat
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Joined: 22 May 2009
Posts: 160
Location: Bangalore

PostPosted: Wed May 15, 2013 4:42 am    Post subject: DB2 query for the distinct set
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Hi,
I have a requirement wherein i have to extract the data for a particular row having DISTINCT COLUMN for the cust_numb

i have been doing the below query:
Code:

  SELECT DISTINCT C1,C2
    FROM TABLE A
    WHERE A.C1  = '123'                 
        ORDER BY C1,C2
 WITH UR;                                                 


The result is as :
Code:

C1     C2
X        1
X        2
Y         1
Y         2
Z         1
A         1
B         2



But now from the above resultant set i need to get only the below rows

Code:

C1     C2
X        2
Y        2
Z        1
A        1
B        2

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tecnokrat
Warnings : 1

Active User


Joined: 22 May 2009
Posts: 160
Location: Bangalore

PostPosted: Wed May 15, 2013 5:31 am    Post subject:
Reply with quote

Hi,
I have got the Resultant set thru the Below Query:

Code:



  SELECT DISTINCT C1,C2
    FROM TABLE A
    WHERE A.C1  = '123'     
         AND A.C2 = (SELECT MAX(B.C2)
              FROM TABLE B
               WHERE B.C1 = A.C1)             
        ORDER BY C1,C2
 WITH UR; 
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