SQL Server provides a set of command-line utilities that allow you to execute some of the available SQL Server programs from the command prompt. Much of the functionality housed in these utilities is also available in graphical tools, such as SSMS. However, the capability to initiate these programs from the command prompt is invaluable in certain scenarios.
Chapter 6, “SQL Server Profiler,” covers a tool that is critical for performance tuning in SQL Server 2012. SQL Server Profiler provides insight by monitoring and capturing the activity occurring on a SQL Server instance. It is a “go-to” tool for many DBAs and developers because of the wide variety of information it can capture.