get history of locks?

is it possible to get dates of when last data locks happened on select queries?
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25112Asked:
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25112Author Commented:
I checked master.syslockinfo but it does not have any date, but some binary data.

also master.dbo.syslockinfo  is bringing different count than master.sys.syslockinfo. i am assuming lock info is captured per db specific.
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Vitor MontalvãoMSSQL Senior EngineerCommented:
You can't since the available information it's in general a snapshot of what's going on at the moment.
The only way it's to create a database where you can keep all those information for later verification.
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Scott PletcherSenior DBACommented:
The new view is sys.dm_tran_locks.  But you won't find datetime.  I suspect that would be just too much overhead to keep up with.  When SQL gets busy, locks are taken and released at a huge rate, so trying to time stamp all of them would be too damaging to performance.
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25112Author Commented:
OK, what I get is that unless i profile(r), i cant capture past locks..

then, is there any value to this query, now:
select * from master.dbo.syslockinfo a join master.dbo.sysprocesses b on a.req_spid=b.spid where object_name(a.rsc_objid) is not null
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Scott PletcherSenior DBACommented:
Hmm, I don't really know.  I haven't used those obsolete views in years, so I'm not familiar with them any more.
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Vitor MontalvãoMSSQL Senior EngineerCommented:
That query only works if when you run it the lock still exists. If not, will return nothing.
Like I told you that's only work as snapshot not with stored information. For that you need to create your own monitoring tool or use one as SCOM or another one similar.
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Vitor MontalvãoMSSQL Senior EngineerCommented:
Here's an article how to create your own monitoring tool for deadlocks.
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25112Author Commented:
thank you
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Microsoft SQL Server 2008

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