le 9/10/12 14:44, Ruslan Zasukhin <ruslan_zasukhin at valentina-db.com> a écrit : > May be you need write then own alg, > Which transform this value as > ID MOD 20 > > But you need yet control uniqueness Ok. Thank you. François Van Lerberghe Rue Thier Monty, 15 A 4570 Marchin Belgique