connect_statement 

<connect_statement> ::=
  CONNECT <parameter_name> IDENTIFIED BY <parameter_name> [<connect_option> ...]
| CONNECT <parameter_name> IDENTIFIED BY <password> [<connect_option> ...]
| CONNECT <user_name> IDENTIFIED BY <parameter_name> [<connect_option> ...]
| CONNECT <user_name> IDENTIFIED BY <password> [<connect_option> ...]