If you encounter the error message:
[DBMS-MSSQL:11006#916] The server principal "NT AUTHORITY\SYSTEM" is not able to access the database <database-name> under the current security context
you will find the solution below:
Go to the “SQL Server” sections and click on the gear button. At the opened “Connect to Server” window you need to select “Microsoft SQ: Server (local) as your Server type, choose “Windows Authentication” and enter User Name and Password. Press “Test Connection” to make sure that you have specified the correct data and then click on “Save & Close” to save and apply new settings. Continue reading [DBMS-MSSQL:11006#916] The server principal “NT AUTHORITY\SYSTEM” is not able to access the database