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Message Posted: Tue, 03 Feb 2004 @ 19:51:10 GMT

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Do like this

        UPDATE TABLE1
      FROM (SELECT  C.FIELD1,COALESCE(A.FIELD1,B.FIELD1)
            FROM TABLE1
            LEFT OUTER JOIN
            TABLE2
            ON 
            LEFT OUTER JOIN
            TABLE3
            ON ) D(FIELD1,FIELD2)
       SET FIELD1 = D.FIELD2
     WHERE TABLE1.FIELD1 = D.FIELD1

Thanks

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