How to benchmark a SQL Server Query?

问题:

I'd like to know the standard way to benchmark a SQL Sever Query, preferably I'd like to know about the tools that come with SQL Server rather than 3rd Party tools.

回答1:

set showplan_text on will show you the execution plan (to see it graphically use CTRL + K (sql 2000) or CTRL + M (sql 2005 +)

set statistics IO on will show you the reads

set statistics time on will show you the elapsed time

回答2:

Use SQL Profiler.

For .NET applications, filter that Application name by '.NET%' and you'll omit other extraneous queries.

回答3:

+1 on the execution plan. From here you can see where all the time is being spent in your particular query. Eg. 85% of the time is spent table scanning a particular table, can you put an index on that table to improve it? etc etc.