Using SQL Server Profiler
SQL Server Profiler shows how SQL Server resolves queries internally. This allows administrators to see exactly what Transact-SQL statements or Multi-Dimensional Expressions are submitted to the server and how the server accesses the database or cube to return result sets.
Using SQL Server Profiler, you can do the following:
Create a trace that is based on a reusable template
Watch the trace results as the trace runs
Store the trace results in a table
Start, stop, pause, and modify the trace results as necessary
Replay the trace results
Use SQL Server Profiler to monitor only the events in which you are interested. If traces are becoming too large, you can filter them based on the information you want, so that only a subset of the event data is collected. Monitoring too many events adds overhead to the server and the monitoring process, and can cause the trace file or trace table to grow very large, especially when the monitoring process takes place over a long period of time.
link to refer: http://msdn.microsoft.com/en-us/library/ms187929.aspx