Mark Morgan Lloyd schrieb am 25.09.2015 um 23:41:
> I'm trying to get support for PostgreSQL's listen/notify into a
> development environment, but since it supports multiple database
> backends: can anybody comment on how many other servers have a
> comparable facility?
>
> Minimal research has allowed me to code something for
> Firebird/Interbase, but I'm not in a position to investigate Oracle,
> IBM, MS and the rest. I'd appreciate any general comments from
> somebody who has broad SQL experience, I'm not asking for example
> code.
For Oracle this would be the "change notification" feature which
goes beyond what Postgres can do if I'm not mistaken as you can
register a query and the client is notified if the result of that
query would change:
http://docs.oracle.com/database/121/JJDBC/dbchgnf.htm#JJDBC28815
