How to notify Front Ends of Table Changes

Hello

I�m starting with postgres and made a sample very simple
application with delphi4.

Several clients are instaled in diferent machines with
win32 accesing in some case the same tables and  i�m
using the Insight ODBC driver (http://www.insightdist.com/psqlodbc/).

I need to know how tonotify my clients applications that
other client in some other machine had modified the table
it�s using in order to orer my client app to refresh the
data its showing to the end user.

any suggestions......

Thanks.

Carlos Callo Lazo
Arequipa - Peru


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