When trusing the Data Pump Export Utility in Toad for Oracle on a database that uses an at symbol "@" in the password, the Data Pump tool throws the following error:
ORA-12154: TNS: Could not resolve the connect identifier specified
WORKAROUND:
Change the Oracle database password to one that does not contain an at symbol "@" and re-connect and re-test the Data Pump Export.
STATUS:
Waiting for a fix in a future release of Toad for Oracle.