i am agree with Alexander V.Nevsky ,but "Accounts" Table not changed
too match

i want notify what account changed to listing it in Client List,
like notify changed of Balanace when go over the limit
or notify Quantity of warehouse less than 20qty etc......

i can build a udf with TCP/IP but i preferable use it in Firebird
may be need anther Statment like ALLERT or SEND_EVENT ^_^

one of my friend used EVENTS in other kind database to build CHAT
ROOM :-D