How is SQL Server Statistics Histogram Computation Used by The Query Optimizer – Part 1

April 12, 2018March 30, 2022 - by Amit Bansal - Leave a Comment

In this video, you will understand how is the histogram computation (SQL Server Statistics Data) used by the Query Optimizer for cardinality estimation. Particularly, you will see the usage of EQ_ROWS & AVG_RANGE_ROWS.

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About Amit Bansal

Amit Bansal is always brainstorming around SQL Server. Despite working with SQL since 1997, he is amazed that he keeps learning new things every single day. SQL Server is AB's first love, and his wife does not mind that. He tries to share as much and spreads the SQL goodness. Internals and Performance Tuning excites him, and also gives him sleepless nights at times, simply because he is not a genius, but quite a hard worker and does not give up. It has been a long and exciting journey since 1997, you can read here: http://sqlmaestros.com/amit-bansal/ He is on Twitter: https://www.twitter.com/A_Bansal

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