You can run a trace for a period of time and count up the queries. You can save perfmon counters, specifically the Batch_requests per second I think would be a good one.
It's not something that SQL tracks and saves, so you won't be able to get historical data without something already running.
Gail Shaw
Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability
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