How to view Ascii for all characters in a database filed

Loralei <[email protected]>
Newsgroups gmane.comp.db.oracle.toad.free
Message-ID <[email protected]> 
Greetings, 
I know that using ascii('a') will give the representative code for single character

is there a way to show the ascii representative for ALL characters in a field? 

Sparkie
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