Please start any new threads on our new site at We've got lots of great SQL Server experts to answer whatever question you can come up with.

 All Forums
 Site Related Forums
 Article Discussion
 Article: Application Locks (or Mutexes) in SQL Server 2005

Author  Topic 

Ask SQLTeam Question

0 Posts

Posted - 2008-01-07 : 11:26:21

Application locks aren't a well known area of locking in SQL Server, but they can be very useful for special
scenarios. They work in a analogous way to the lock() construct in .Net and
are basicaly user defined mutexes in SQL Server.

Read Application Locks (or Mutexes) in SQL Server 2005

Starting Member

1 Post

Posted - 2009-08-28 : 19:36:24
Very good article. Very useful. I found that sp_getapplock will NOT work within a dotnet System.Transaction - even if it is also within a SQL transaction. It took me a while to figure that out.
Go to Top of Page

Cybernetic Yak Master

11752 Posts

Posted - 2010-11-24 : 16:29:33
define won't work. the sp_getapplock lock does NOT lock data. only blocks of code.

Causing trouble since 1980
Speed up SSMS development: <- version 1.9 out!

SQL Server MVP
Go to Top of Page

- Advertisement -