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  • Subject: Re: SQL COUNT - detail record count on header records
  • From: "R. Bruce Hoffman, Jr." <rbruceh@xxxxxxxxxxxxx>
  • Date: Tue, 10 Apr 2001 16:56:22 -0400

Sorry, left off the group by...


>one way... use a common table expression...
>
>
>WITH det(fld1, fld2) AS (select detail_key, count(*) from details
          group by detail_key)
>  SELECT header.*, det.fld2
>   FROM header
>  JOIN det on header_key = det.fld1
>
>
>===========================================================
>R. Bruce Hoffman, Jr.
> -- IBM Certified Specialist - AS/400 Administrator
> -- IBM Certified Specialist - RPG IV Developer
>
>"America is the land that fought for freedom and then
>  began passing laws to get rid of it."
>
>     - Alfred E. Neuman
>
>-----Original Message-----
>From: Patrick L Archibald <Patrick.Archibald@HOMETELCO.COM>
>To: MIDRANGE-L@midrange.com <MIDRANGE-L@midrange.com>
>Date: Tuesday, April 10, 2001 2:02 PM
>Subject: SQL COUNT - detail record count on header records
>
>
>>Hi
>>
>>I've racked my brains and searched high and low.
>>I can't find the correct SQL SELECT statement to
>>count the number of records in a detail file and
>>show that count in my header record.
>>
>>The following SELECT statement gives me what I want
>>except I want to see zero in the count field if
>>there are no matching records in the detail file.
>>
>>select a.*, b.count from som.som022clsd as a, (select phonenum,
>>ordrnmbr, count(*) as count from som.sompfa21 group by phonenum,
>>ordrnmbr) as b where a.phonenum = b.phonenum and a.ordrnmbr =
>>b.ordrnmbr and a.conumber = '08' and a.workdate between 20010301
>>and 20013030
>>
>>Previously I wanted to sum a total in a detail file and show
>>it along the header fields but couldn't figure that out either.
>>Again I want to show zero in the sum field if there are no
>>matching records in the detail file.
>>
>>Can someone please point me in the right direction?
>>
>>Thanx, PLA
>>/
>>/ Patrick L Archibald
>>/ http://HomeTelco.com/pla/
>>/
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