The Output window can display status messages for various features in the integrated development environment (IDE). To open the Output window, on the menu bar, choose View/Output (or click CTRL + ALT + O).
This window displays status messages for various features in the integrated development environment (IDE). These include build errors that occur when a project is compiled, and the results when TSQL syntax in a stored procedure is checked against a target database. Certain IDE features, such as the external tools features or commands invoked in the Command Window, deliver output to special Output Window panes. Output from external tools such as .bat or .com files, normally displayed in the DOS window, is also available.
To access the Output window, select Other Windows from the View menu, and choose Output. You can specify which types of debugging information appear in the Output window. To display these options, open the Tools menu, click Options, expand the Debugging node, and click Output Window.
The output window executes when a project is run and it is displayed as below: