How to log in to the default instance of SQL Server (Command Prompt) From SQL Server Setup Help previous page next page SQL Server Setup Help How to log in to the default instance of SQL Server (Command Prompt) To log in to the default instance of SQL Server From a command prompt, enter either: osql /U [login_id] /P [password] /S [servername] -or- isql/U [login_id]/P [password] /S [servername] See Also osql Utility previous page start next page