Subject Re: [firebird-support] (OT) ISBN to Barcode
Author Pierre Y.
Sudheer Palaparambil a écrit :

> Hi friends,
> I heard that there is some formulae to arrive barcode from ISBN ? Any
> information about this is greatly appreciated.

EAN/JAN 13 ?

In France : Just add "978" before SUBSTRING(RAW_ISBN from 1 for 9) and
compute the EAN13 key.

RAW_ISBN is ISBN number without dashes. The last ISBN digit is a checksum.

Other countries may have different prefixes.


Pierre Y.