Changing a stored procedure in a package (newbie)

I'm new to Oracle, but not to databases. I've got a package with many stored procedures in it. Is it possible to change just one stored procedure without having to resubmit a script with absolutely everything in the package also in the script?

If the answer is that we have to resubmit a script with the entire package contents, then is there a way to retrieve a current snapshot script from the database, assuming that no one kept up with or someone lost or messed up said script?

TIA Received on Tue Aug 29 2006 - 15:05:07 CDT