Right-click on the server you manage in SQL Server Management Studio and the Properties window opens.
From the Security field on the left menu, the Server Authentication setting is selected as “SQL Server and Windows Authentication mode”.
To create a new user, right-click on the Security area and select New Login.
From the left menu on the screen that appears;By default, "xpoda" is written in the login name field in the General option and a password is given. The Enforce password policy box can be removed optionally.
Within Server Roles, all permissions are given to the opened user. (These permissions are required for the user to create a database. Other privileges except "public" can be removed after installation.)
In User Mapping, check the master box and select the db_owner option from the submenu.
Sql user creation process is completed with the OK button.