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In SQL Server 2005/2008, how can I tell if Snapshot Isolation is turned on? I know how to turn it on, but I can't find the incantation to get google to tell me how to query the state of the Snapshot Isolation option.

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4 Answers 4

up vote 3 down vote accepted

right click on the databases directory in the object explorer and start powershell. type:
get-childitem|select name, snapshotisolationstate
and press return

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4  
wow, is the PS really necessary? –  Nick Kavadias Feb 26 '10 at 14:27
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Powershell, really? what's wrong with good ol' fashioned T-SQL?

sys.databases is what you want. It has human readable description columns like snapshot_isolation_state_desc

SELECT snapshot_isolation_state_desc from sys.databases 
where name='adventureworks'
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No, not wholly necessary but I'm just starting to learn PS so took a look to see how it could be done and thought I'd share .. ! –  Fatherjack Feb 26 '10 at 15:14
    
as much as i hate to admit it, it is cool –  Nick Kavadias Feb 26 '10 at 15:22
    
to be honest, I'm struggling to see its going to be a lot of use to me, we only have 30ish servers. If I wanted the snapshot isolation from every database on every server then I guess PS might be better than T-SQL.. for now I'm seeing it just as an alternative, I'll use it here and there I expect. –  Fatherjack Feb 26 '10 at 18:05
    
I can't edit because it's less than a six-character change, but for other confused souls who copy and paste the query, note that it should be sys.database*s* and not sys.database. –  Mark Sowul Jul 14 '11 at 16:39
    
thanks, i've fixed the typo up –  Nick Kavadias Jul 15 '11 at 6:55
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Expanding on nicks response from above..

The following will return information about all of your databases

    select name
        , s.snapshot_isolation_state
        , snapshot_isolation_state_desc
        , is_read_committed_snapshot_on
        , recovery_model
        , recovery_model_desc
        , collation_name
    from sys.databases s
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Or using T-SQL code:

SELECT
'Current Isolation State:' [ ],
CASE is_read_committed_snapshot_on
        WHEN 1 THEN 'ON' ELSE 'OFF'
    END AS [Read Committed Snapsot State]

FROM sys.databases WHERE name = 'MyDatabaseName'

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