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• The 3rd edition of the ebook SQL Server Execution Plans

  From Redgate website you can download (for free) the ebook SQL Server Execution Plans written by Grant Fritchey and technically reviewed by Hugo Kornelis . This ebook can not be miss in your digital library! Enjoy! Read More... Posted Wednesday, October 24, 2018 9:10 PM by Sergio Govoni | 5 Comments Filed under: SQL Server, Books, Execution Plans, Tuning, News

• Skewed Data - Poor Cardinality Estimates... and Plans Gone Bad

  The session Skewed Data, Poor Cardinality Estimates, and Plans Gone Bad by Kimberly Tripp ( @KimberlyLTripp ) has been published on channel SQLPASS TV . Abstract When data distribution is heavily skewed, cardinality estimation (how many rows the query Read More... Posted Friday, February 14, 2014 9:34 PM by Sergio Govoni | 1 Comments Filed under: SQL 2012, SQLPASS TV, Execution Plans, Cardinality estimation, Statistics