22-25 April 2026
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SQLBits 2022

Myths and Misconceptions about Locking & Blocking

You know the various Transaction Isolation Levels and Locking/Blocking very well in SQL Server? If yes, come and join my session where I will talk about various Myths and Misconceptions around Locking & Blocking that I have encountered over the years.
You know the various Transaction Isolation Levels and Locking/Blocking very well in SQL Server? If yes, come and join my session where I will talk about various Myths and Misconceptions around Locking & Blocking that I have encountered over the years. We will take a whirl tour through some edge cases that will change forever how you think about Locking & Blocking in SQL Server. During this session we will cover the following areas: *) NOLOCK can block! *) Shared Locks are blocking Shared Locks! *) Read Committed behaves as Repeatable Read *) Online Index Operations are not Online Index Operations!