Currently, database queries in SCM only support using local SQL accounts. Managing local database accounts across thousands, or even hundreds of SQL installs is painful. Support for Windows Authentication would allow us to use AD accounts for database queries in SQL and make the management of these accounts, credentials and permissions a lot easier.
Also, SQL STIGs and other lockdown guides recommend using a Windows principal unless absolutely necessary.
Please, add support for using Windows Authentication for database queries in SCM.