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 Article: Application Locks (or Mutexes) in SQL Server 2005
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AskSQLTeam
Ask SQLTeam Question

USA
0 Posts

Posted - 01/07/2008 :  11:26:21  Show Profile  Visit AskSQLTeam's Homepage  Reply with Quote

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

kim98074
Starting Member

1 Posts

Posted - 08/28/2009 :  19:36:24  Show Profile  Reply with Quote
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.
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spirit1
Cybernetic Yak Master

Slovenia
11750 Posts

Posted - 11/24/2010 :  16:29:33  Show Profile  Visit spirit1's Homepage  Reply with Quote
define won't work. the sp_getapplock lock does NOT lock data. only blocks of code.

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