Groups > comp.databases.ms-sqlserver > #1990

Re: Using sp_getapplock outside a transaction

From	Erland Sommarskog <esquel@sommarskog.se>
Newsgroups	comp.databases.ms-sqlserver
Subject	Re: Using sp_getapplock outside a transaction
Date	2017-11-27 11:56 +0100
Organization	Erland Sommarskog
Message-ID	<XnsA83A797965E4BYazorman@127.0.0.1> (permalink)
References	(2 earlier) <20171125182411.7cc99cc41acef664ea224b1c@gmail.com> <XnsA838DBBEAC219Yazorman@127.0.0.1> <20171126194310.7f5514c0300678d88cf17eaa@gmail.com> <XnsA839CAC1E58E4Yazorman@127.0.0.1> <20171127113428.2629ecf62d24b8131d42d13f@g{oogle}mail.com>

Show all headers | View raw

Anton Shepelev (anton.txt@g{oogle}mail.com) writes:
> Indeed.   An  inner  BEGIN TRAN  only increments the
> counter, an inner COMMIT TRAN decrements it, but (!)
> ROLLBACK TRAN  does  actually  undo  the  the  outer
> transaction and sets the counter to zero.   This  is
> all  very  unintuitive  to  me, and requires special
> handling of ROLLBACKs in both  T-SQL  code  and  the
> client application.
> 

It becomes more intuitive if you stop to think in terms of "outer
transaction". A transaction is all there is. So the ROLLBACK will
roll back it all.

The point with BEGIN/COMMIT increase @@trancount is that it makes
it easier to nest procedures that both start transactions.

Back to comp.databases.ms-sqlserver | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

Using sp_getapplock outside a transaction Anton Shepelev <anton.txt@gmail.com> - 2017-11-25 14:56 +0300
  Re: Using sp_getapplock outside a transaction rja.carnegie@gmail.com - 2017-11-25 05:37 -0800
    Re: Using sp_getapplock outside a transaction Anton Shepelev <anton.txt@gmail.com> - 2017-11-25 18:24 +0300
      Re: Using sp_getapplock outside a transaction rja.carnegie@gmail.com - 2017-11-25 08:36 -0800
        Re: Using sp_getapplock outside a transaction Anton Shepelev <anton.txt@gmail.com> - 2017-11-25 21:13 +0300
          Re: Using sp_getapplock outside a transaction rja.carnegie@gmail.com - 2017-11-25 16:21 -0800
      Re: Using sp_getapplock outside a transaction Erland Sommarskog <esquel@sommarskog.se> - 2017-11-25 21:36 +0100
        Re: Using sp_getapplock outside a transaction Anton Shepelev <anton.txt@gmail.com> - 2017-11-26 19:43 +0300
          Re: Using sp_getapplock outside a transaction Erland Sommarskog <esquel@sommarskog.se> - 2017-11-26 19:55 +0100
            Re: Using sp_getapplock outside a transaction Anton Shepelev <anton.txt@g{oogle}mail.com> - 2017-11-27 11:34 +0300
              Re: Using sp_getapplock outside a transaction Erland Sommarskog <esquel@sommarskog.se> - 2017-11-27 11:56 +0100
                Re: Using sp_getapplock outside a transaction rja.carnegie@gmail.com - 2017-11-27 14:23 -0800
                Re: Using sp_getapplock outside a transaction Erland Sommarskog <esquel@sommarskog.se> - 2017-11-28 08:50 +0100
                Re: Using sp_getapplock outside a transaction Anton Shepelev <anton.txt@g{oogle}mail.com> - 2017-11-29 15:11 +0300
                Re: Using sp_getapplock outside a transaction Anton Shepelev <anton.txt@g{oogle}mail.com> - 2017-11-29 15:22 +0300
                Re: Using sp_getapplock outside a transaction Erland Sommarskog <esquel@sommarskog.se> - 2017-11-29 13:44 +0100
                Re: Using sp_getapplock outside a transaction Anton Shepelev <anton.txt@g{oogle}mail.com> - 2017-11-29 18:44 +0300
                Re: Using sp_getapplock outside a transaction Anton Shepelev <anton.txt@g{oogle}mail.com> - 2017-11-29 19:42 +0300
                Re: Using sp_getapplock outside a transaction rja.carnegie@gmail.com - 2017-11-30 13:19 -0800

csiph-web