In article <333E001A.3AEC_at_best.com>, Mikhail Rezhepp <mrezhepp_at_best.com> wrote:
> Dan Shechter wrote:
> >
> > Back at where I work, we have a very strong need for callbacks (notices
> > sent to out applications upon insertaion to tables from the server).
> >
> > Those applications are running om remote systems from the oracle server,
> > which implies that some sort of network connection is required.
> >
> > What we've come up so far, was to use a trigger upon insertation on the
> > required tables, which will run a stored procedure, that will use the
> > PL/SQL UTL_FILE package which allows to write into operating system
> > files (or named pipes for that matter).
> >
> > Meanwhile, we have a small daemon, trying to read from those files.
> >
> > When the daemon succeeds in reading, it parses the data read, and
> > through TCP/IP inform the interested applications.
> >
> > Although this should work (OK, we haven't really tried it yet...),
> > I was wandering if anybody had ever met the same problem with a better
> > solution.
Why don't you use DBMS_PIPES to leave the dbms. In unix a deamon reads
that pipe and performs the requests as you want it to. That can be quick,
syncronised.
Did this a few times.
Ronald
http://www.worldaccess.nl/~ronr (last update march 15. 1997)
Received on Sun Mar 30 1997 - 00:00:00 CST
