When specifying connection string information using command line switches, the --datasourcename switch, the --connectionstring switch, and the --provider switch are required.
The --datasourcename switch specifies a unique name, defined by the user, to identify the connection string used to connect to the database.
Note:
This identifying name may be different from the name of the actual database, which is specified in the Data Source and database qualifiers of the --connectionstring switch.
For Example:
--datasourcename "DataSourceName"