A SQL Server table hint that can be used to prevent queries from issuing shared read locks. While often used to prevent a query from blocking other queries it also makes it susceptible to dirty reads and other potential data issues.

- Stackoverflow.com Wiki
1 articles, 0 books.

Surfing the web you will find articles saying that Nolock is dangerous and shouldn’t be used, and articles stating that it’s THE solution for many problems. The truth, as in many cases, lies in the middle.