Database Tuning (MOSC)

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A question about ANSI JOIN

edited Feb 11, 2009 2:45AM in Database Tuning (MOSC) 4 commentsAnswered
Hi all,

I'm facing a strange behaviour with a sql using ansi join and dblink.

A complex query joining (ANSI) remote tables is broken into multiple small queries on the remote database.

If I move from ANSI to Natural join the query is executed once on the remote database without having to be broken into small queries.

This leads to better performance with Natural join but I'm not sure saying that Natural Joins are better than ANSI Joins.

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