Re: Still the case that rolling back to savepoint does not restart blocked sessions?
- From: Sayan Malakshinov <xt.and.r@xxxxxxxxx>
- To: Matt McPeak <vxsmimmcp@xxxxxxxxxx>
- Date: Thu, 29 May 2014 22:16:47 +0400
Matt,
could you provide your example? Because I never seen such behaviour(or
maybe i didn't understand you), and my test that I've made now, showed
normal unlock.
My test:
--First session:
create table xt_test(id primary key, x) as select level,level from dual
connect by level<=10;
begin
update xt_test set x=-x where id=1;
savepoint sp1;
update xt_test set x=-x where id=2;
rollback to sp1;
dbms_lock.sleep(30);
end;
/
-- and now in second:
update xt_test set x=x*10 where id=2;
On Thu, May 29, 2014 at 10:02 PM, McPeak, Matt <vxsmimmcp@xxxxxxxxxx> wrote:
> If transaction A is waiting on a lock held by transaction B and
> transaction B rolls back to a savepoint (releasing the lock), transaction A
> remains blocked until transaction B ends completely (with either a full
> rollback or a commit).
>
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>
> Does anyone know if this is still the case in 12c? I really hate this
> behavior.
>
>
> Thanks,
>
> Matt
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--
Best regards,
Sayan Malakshinov
Senior performance tuning engineer
PSBank
http://orasql.org
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