join elimination optimization

Technical Article

RE: Which Query is Right?

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After some additional testing, it looks like query 1 is correct:select s.suiteid, s.buildingid, s.SuiteName, b.buildingnumber, g.suitename, g.buildingID from suites s inner join buildings b on s.buildingid=b.buildingid LEFT JOIN RealmStageSuites g on g.buildingid=b.buildingnumber AND g.suitename=s.suitename WHERE g.suitename IS NULL AND g.buildingID is NULLAnyone know what's wrong with Q2?

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2005-02-04

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