How to identify unused databases

Hi Folks,
client company has around 25 sql servers .
Each server has got 5 to 10 databases.
Some of the databases are old.
We don't know whether any applications using old databases or not.
Is there any way we can find the unused databases in past 3 months or past 1
year
using some Lastupdatedatetime or last action on sql server system tables
using T-SQL scripts.
If no application is accessing the database and no actions performed on
that database from past 1 year then we need to delete that databases.
How to identify unused databases?
Any kind of help is greatly appreciated.
Thanks
KumarKumar wrote:
> Hi Folks,
> client company has around 25 sql servers .
> Each server has got 5 to 10 databases.
> Some of the databases are old.
> We don't know whether any applications using old databases or not.
> Is there any way we can find the unused databases in past 3 months or
> past 1 year
> using some Lastupdatedatetime or last action on sql server system
> tables using T-SQL scripts.
> If no application is accessing the database and no actions performed
> on that database from past 1 year then we need to delete that
> databases.
> How to identify unused databases?
> Any kind of help is greatly appreciated.
> Thanks
> Kumar
You can create a trace on the server. Include only the SQL:StmtStarting
and RPC:Starting events. Include only the minimum number of columns:
EventClass, SPID, DatabaseID. You could exclude system databases like
master, msdb, and tempdb.
To cut down the rows a little, you could use SQL:BatchStarting, but if a
batch has "USE" statements and accesses more than one database, the
DatabaseID will only refer to the database that was used at execution
time.
If you let the trace run for a couple of hours (or a day or two), you
should have a pretty good picture of what databases were accessed on
each server.
Best to do this using a server-side trace which you can script from
Profiler using the File - Script Trace menu option and stopping manually
using sp_trace_setstatus.
David Gugick
Quest Software
www.imceda.com
www.quest.com