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Message Posted: Thu, 06 Sep 2012 @ 19:32:32 GMT


     
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Subj:   Re: Avoiding Multiple Views
 
From:   De Pons, Paul

One way I can think of is to?create a cross reference table with Logon User ID to source system ID

     CREATE TABLE USER_SOURCE_CROSS_REF
     (USER_ID VARCHAR(50)
     ,SOURCE_SYSTEM_ID INTEGER
     ) UNIQUE PRIMARY INDEX (USER_ID)

Base table includes SOURCE_SYSTEM_ID

View would then be

     CREATE BASE_VIEW AS
     SELECT A.*
     FROM BASETABLE AS A
     INNER JOIN USER_SOURCE_CROSS_REF B
     ON A.SOURCE_SYSTEM_ID = B.SOURCE_SYSTEM_ID
     WHERE B.USER_ID = USER


     
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