A project I am working on is being migrated to a new infrastructure. We are currently set up using the Drupal Docs recommended Linux->MariaDB setup with no problems. However, due to business needs, we are needed to migrate, and the only place to go is to a SQL Server database.
Although it is a migration, I started with just Drupal 7.53 Core to install the database.
My first piece of documentation is http://www.easysoft.com/support/kb/kb01071.html.