Physical Join Operators by Ami Levin

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November 6, 2013 by Kenneth Fisher

For those who don’t know the three physical join operators are Hash Match, Loop Join and Nested Loops. Understanding these operators is an important part of query tuning and understanding query plans. I had the privilege to watch Ami Levin do his presentation on physical join operators at SQL Saturday #255 recently. I’ve seen him give it before at a Pass Summit so I know he gives it every now and again. If you get the opportunity I highly recommend this one. If you don’t then I would read his ebook on the subject.

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