| IF the session logon is … | THEN … |
|---|---|
| not directory-based | the result value is the session user name. |
| directory-based | If the session maps to a permanent table, the result value is the name of the permanent user. If the session does not map to a permanent user, the result value is the authcid of the external user. |
If you are accessing the Teradata Database through a proxy connection, and you want to get the name of the proxy user, use the CURRENT_USER built-in function.