Added method to get database version

Author: aidanharan

lib/active_record/connection_adapters/sqlserver_adapter.rb

@@ -451,6 +451,10 @@ def version_year
       def sqlserver_version
         @sqlserver_version ||= _raw_select('SELECT @@version', fetch: :rows).first.first.to_s
       end
+
+      def get_database_version # :nodoc:
+        version_year
+      end
     end
   end
 end