Standard SQL defines four isolation levels that can be set using the SET TRANSACTION ISOLATION LEVEL statement: Serializable, Repeatable Read, Read Committed, and Read Uncommitted. Although all of the ...

Let's break down when it's ideal to use the NOLOCK hint and when you should never use it. As a consultant, I work on wide swaths of database systems, which means I get to see many, many SQL statements ...

The first step in learning how to avoid deadlocks in SQL Server databases is preparedness. Knowing about deadlocks -- in particular, what causes them -- is the key to preventing them and resolving ...