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default count(*) of 0 when row not found

 
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misi
Beginner


Joined: 14 Apr 2004
Posts: 13
Topics: 10
PostPosted: Wed Feb 07, 2007 10:45 pm    Post subject: default count(*) of 0 when row not found Reply with quote
I want to display the count as 0 even though the select retrieves no rows .

i am running this query
Code:

select cust_id,count(*) from cust_info where cust_amt_spent > 2000

if no rows found then i want to display
Code:

cust_id    count
--------   -------
000000      0

If we did find rows then we should not display this deault record.

Please help
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kolusu
Site Admin
Site Admin


Joined: 26 Nov 2002
Posts: 12378
Topics: 75
Location: San Jose
PostPosted: Thu Feb 08, 2007 7:16 am    Post subject: Reply with quote
misi,

Try this

Code:

SELECT CUST_ID
      ,COUNT(*)
  FROM TABLE
 WHERE CUST_AMT_SPENT > 2000
 GROUP BY CUST_ID
 UNION
SELECT CHAR('000000 ')
      ,CHAR('0)
  FROM SYSIBM.SYSDUMMY1
 WHERE IBMREQD = (SELECT CASE WHEN COUNT(*) = 0                 
                              THEN CHAR('Y') ELSE CHAR('N') END
                    FROM TABLE
                   WHERE CUST_AMT_SPENT > 2000)
;


Hope this helps...

Cheers

Kolusu
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