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Physical Join Operators by Ami Levin

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.

Filed under: Book Review, Microsoft SQL Server, Performance, Query Plans, SQLServerPedia Syndication Tagged: Book Reviews, microsoft sql server, Performance


My name is Kenneth Fisher and I am Senior DBA for a large (multi-national) insurance company. I have been working with databases for over 20 years starting with Clarion and Foxpro. I’ve been working with SQL Server for 12 years but have only really started “studying” the subject for the last 3. I don’t have any real "specialities" but I enjoy trouble shooting and teaching. Thus far I’ve earned by MCITP Database Administrator 2008, MCTS Database Administrator 2005, and MCTS Database Developer 2008. I’m currently studying for my MCITP Database Developer 2008 and should start in on the 2012 exams next year. My blog is at www.sqlstudies.com.


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