DATE
columns do not have any inherent format, they are stored using Oracle's own internal representation. They only have a format for display.
To insert that string into a date column you'd need to use
to_date('Sat Nov/30/2013', 'Dy Mon/DD/YYYY')
But bear in mind that this is language-sensitive, so the date has to be entered in the same language as the session. You can override that with the optional third parameter to the to_date()
function.
Then to display the date you can use
to_char(<field>, 'dd-mon-rr')
MMM
isn't a recognised datetime format model element, so I'm guessing you want the month abbreviation. Which is also NLS-sensitive of course.