The user name that is used to connect to the database. A user name is required only if SQL Server authentication is enabled on your database. Contact your system administrator to obtain your user name.
Valid Values
[domain_name\]user_name
where:
domain_name
is the name of a valid domain server. The name is case-insensitive and optional. If specified, you must separate the domain name from the user name by a backward slash (\).
user_name
is a valid user name. It is case-insensitive.
Notes
Only set the domain server name if AuthenticationMethod=ntlmjava.