ssh -X me@mydomain.com
screen
export DISPLAY:0.0
teamviewer
sumber : http://ubuntuforums.org/showthread.php?t=1545451
Internal monologue
raise_application_error
You can throw user-defined error messages from PL/SQL code. Error codes between -20000 until -20999 are reserved for user specified error messages. You do so by calling the raise_application_error function within your PL/SQL:
raise_application_error(-20001, ‘Your error code message here’);
This will be propagated just like normal Oracle errors.
sumber : http://stackoverflow.com/questions/1544035/throwing-specific-error-messages-in-plsql-oracle-catching-in-hibernate