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Re: Conflicts in Relationships

From: bill_dev <member38341_at_dbforums.com>
Date: Wed, 17 Sep 2003 22:49:42 -0400
Message-ID: <3383978.1063853382@dbforums.com>

I mean changing a left outer join into a right outer join... or I mean, in the course of creating a query, the user adds a join of a type that conflicts with the joins that are already configured.

E.g. Assuming a query exists like this....

SELECT TableA.*

FROM TableB INNER JOIN

            TableA ON TableB.id1 = TableA.id1 INNER JOIN

            TableC ON TableB.id3 = TableC.id3 AND TableA.id3 =
            TableC.id3



..which is just 3 tables inner joined in a triangle. If the user then tries to change the relationship between A and B to make sure all records of A appear in the result, then the query builder software needs to somehow report a conflict in the relationships because the relationship between A and C must change as well.

I hope I explained that properly...

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Received on Wed Sep 17 2003 - 21:49:42 CDT

Original text of this message

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