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primary key as a string

Question asked by RossanoIennarelli on Jan 19, 2011
Latest reply on Jan 26, 2011 by RossanoIennarelli


primary key as a string


I want to use a 4/5 carachter string such primary key, this string go from AAAA to ZZZZ, this key must automatic increase

for example:

AAAA - AAAB - AAAC - ... - AAAZ - AABA - AABB - AABC - .... - ecc.

is there a way to do this??

thanks in advance