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08/25/2009 at 09:03AM PDT, ID: 24680338
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9.0

SQL Server 2005 Nested CASE Statement

Asked by glennes in SQL Server 2005

Tags: SQL Server 2005, T-SQL, Nested Case Syntax

I can't get the syntax correct when trying to do a multiple CASE statement in this code:

SELECT CASE
         WHEN apitem.fcpocat = 'JO'
         THEN Left(apitem.fcsojokey,5)
         THEN
         CASE WHEN apitem.fcpocat = 'SO'
         THEN Left(apitem.fcsojokey,6)
         END AS 'JO'
         ELSE ''
       END AS 'SO',
       END ''
       apitem.finvqty,
       apitem.fpartno,
       Left(apitem.fpokey,6)   AS PO,
       Left(apitem.frecvkey,6) AS SO,
       apitem.fvucost,
       apitem.fvptdes,
       apitem.identity_column
FROM   apitem
WHERE  CASE
         WHEN apitem.fcpocat = 'JO'
         THEN Left(apitem.fcsojokey,5)
         THEN
         CASE WHEN apitem.fcpocat = 'SO'
         THEN Left(apitem.fcsojokey,6)
         END AS 'SO'
         ELSE ''
         END
           ELSE ''
       END <> ''

Both CASES are run against the same table.

The only difference is in the 'Left(apitem.fcsojokey,5)' and Left(apitem.fcsojokey,6) conditions.  The first one is to be used when apitem.fcpocat = 'JO'  and the second one when apitem.fcpocat = 'SO' .  I'm just having a problem working the syntax correctly to accommodate both conditions in the same SELECT clause.

How do I fix this so it will run?
1:
2:
Removed unrelated zone: Oracle Database
mwvisa1, Zone Advisor
[+][-]08/25/09 09:10 AM, ID: 25179081

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[+][-]08/25/09 09:10 AM, ID: 25179085

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About this solution

Zone: SQL Server 2005
Tags: SQL Server 2005, T-SQL, Nested Case Syntax
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Solution Provided By: aneeshattingal
Participating Experts: 3
Solution Grade: A
 
 
[+][-]08/25/09 09:14 AM, ID: 25179135

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[+][-]08/25/09 10:16 AM, ID: 25179828

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