How to find exception occured while using LOGON function in oracle 10g

Question

Hi,
I am using LOGON function to login with a different user name in oracle 10g forms.
LOGON ( User, Pass@tns, FALSE)
The third parameter is passed as 'FALSE' to avoid the login screen to be opened. If any of the other parameter ( User Name, Password, TNS) is passed wrong, connection is not established but no exception is occurred. The value for 'FORM_FAILURE' is set to 'TRUE'.
What i need is the ORA error for connection failure. The error message related to user name/password (ORA-01017) or connection identifier (ORA-12155).
How i can get this error code if connection is failed. Is there any other way to login in oracle forms other than 'LOGON'.
Habib

Answer 1

Habib Ahmad wrote:
Hi,
I am using LOGON function to login with a different user name in oracle 10g forms.
LOGON ( User, Pass@tns, FALSE)
The third parameter is passed as 'FALSE' to avoid the login screen to be opened. If any of the other parameter ( User Name, Password, TNS) is passed wrong, connection is not established but no exception is occurred. The value for 'FORM_FAILURE' is set to 'TRUE'.
What i need is the ORA error for connection failure. The error message related to user name/password (ORA-01017) or connection identifier (ORA-12155).
How i can get this error code if connection is failed. Is there any other way to login in oracle forms other than 'LOGON'.As salamu alikum, Habib
If you pass FALSE in login you can't catch anything. Want to catch the error ?
Then change
LOGON ( User, Pass@tns, FALSE)
to
LOGON ( User, Pass@tns, TRUE) Now Create On-Error trigger at form level
and try the following code
if error_code=01017 then
     message('invalid user name or password');
     message('invalid user name or password');
     raise form_trigger_failure;
elsif error_code=12154 or error_code=1215 then
     message('invalid connection string');
     message('invalid connection string');
     raise form_trigger_failure;
end if;Hopes this helps
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