Logon string information comprises three syntax elements. In interactive command line environments, such as Teradata Basic Query Utility (BTEQ), logon elements appear as discrete elements.
| Syntax Element | Description |
|---|---|
| .logmech | Specifies the authentication mechanism. If a .logmech statement is not present, the logon uses the default security mechanism. |
| .logdata | Optionally specifies user credentials for external authentication mechanisms. Use of the .logdata statement is required:
For details, see the topics for specific logon methods. |
| .logon | Specifies the tdpid and user credentials for all authentication methods. For TD2 authentication, logon can also include the user account. Not usable for external authentication, where a user=username, profile=profile_name, or realm=realm_name specification is required. Instead, use .logdata.
|
For applications that do not use a command line interface, logon element syntax requirements and options still apply, but you must configure the elements as defaults, or specify them in a connection GUI, depending the application you use.