This window displays status messages for various features in SQL Server Management Studio. Output is delivered to special panes in the Output window from the Transact-SQL debugger, external tools features, or commands that are run in the debugger Command Window. Output that is usually displayed in the Command Prompt window from external tools, such as .bat or .com files, is also available.
To access the Output window
On the View menu, click Other Windows, and then click Output.