22-25 April 2026
Video unavailable
SQLBits 2022

The NOLOCK Chronicles

NOLOCK is the SQL Server Developer's Go Faster button without fully understanding the fact behind the fiction. Let's bust the myths and reveal the reality!
The use of READ UNCOMMITTED isolation and its evil lock hint offspring NOLOCK are the root cause behind 9/10 heart attacks suffered by DBAs from the stress of their jobs. In this lightning talk, we will do our best to convince the SQL Developer and Business Intelligence communities to avoid using this nasty practice through the use of real-world examples and unexpected behaviors and instead provide alternative solutions.