I find a idea to generate a Chcksum code to put in a table
the file/table are only string (char and number )
ex:
file original:
value description
univocal 20 char/number univocal
AABC01 AAAAABBBB8765367BBBAA
DD6C43 1CCCCCBBHJ4563-DDEFTR
AVES01 VBGHJ87654-7Z577567482
ecc...
the result are identical file plus CHECHSUM
xxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx ->> VALUE <<--
xxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxx "" ""
ecc..
I find a function for create/verify the checksum (ksh) make use of the two columns of file.