Random Code Stored Procedure

[Steffan A. Cline]

Rather than trying to reinvent the wheel, I was wondering if anyone might
have a stored procedure already for what I want to do.

I want to start with 4 characters using any unique combo and when all
unique matches are used, it will move to 5 characters and so on.

For example in any random order:

AAAA
AAAB
...
ZZZZ
AAAAA
...
ZZZZZ
AAAAAA
...
ZZZZZZ

The codes would be validated for a dupe against an existing column which
this will seed called "code".

Suggestions?


Thanks

Steffan