Hi all,

Some of my users have requested that I implement and email
notification system in an application. I can do it programatically,
however what if the applicable tables are updated directly in the
database.

Is it possible to activate the sending of an email notification inside
of triggers?

I have been given the IP address of an SMTP server that I can send the
email notification through.

TIA,

Johan Nel
Pretoria, South Africa.

begin johan.nel (AT) xsinet (DOT) co.za schrieb:
Sure, you do that using an untrusted language for the trigger-function.
But the better way is using listen/notify-mechanism, described here:
http://www.postgresql.org/docs/8.3/i...ql-listen.html
http://www.postgresql.org/docs/8.3/i...ql-notify.html

Other way:
use a scheduler (CRON under UNIX) and check regular for new updated
records. For instance, with every update store the PK in an other table.
With CRON check this table, send the email and delete the record in the
table.


end
Andreas
--
Andreas Kretschmer
Linux - weil ich es mir wert bin!
GnuPG-ID 0x3FFF606C http://wwwkeys.de.pgp.net

begin johan.nel (AT) xsinet (DOT) co.za schrieb:
Sure, you do that using an untrusted language for the trigger-function.
But the better way is using listen/notify-mechanism, described here:
http://www.postgresql.org/docs/8.3/i...ql-listen.html
http://www.postgresql.org/docs/8.3/i...ql-notify.html

Other way:
use a scheduler (CRON under UNIX) and check regular for new updated
records. For instance, with every update store the PK in an other table.
With CRON check this table, send the email and delete the record in the
table.


end
Andreas
--
Andreas Kretschmer
Linux - weil ich es mir wert bin!
GnuPG-ID 0x3FFF606C http://wwwkeys.de.pgp.net

begin johan.nel (AT) xsinet (DOT) co.za schrieb:
Sure, you do that using an untrusted language for the trigger-function.
But the better way is using listen/notify-mechanism, described here:
http://www.postgresql.org/docs/8.3/i...ql-listen.html
http://www.postgresql.org/docs/8.3/i...ql-notify.html

Other way:
use a scheduler (CRON under UNIX) and check regular for new updated
records. For instance, with every update store the PK in an other table.
With CRON check this table, send the email and delete the record in the
table.


end
Andreas
--
Andreas Kretschmer
Linux - weil ich es mir wert bin!
GnuPG-ID 0x3FFF606C http://wwwkeys.de.pgp.net

begin johan.nel (AT) xsinet (DOT) co.za schrieb:
Sure, you do that using an untrusted language for the trigger-function.
But the better way is using listen/notify-mechanism, described here:
http://www.postgresql.org/docs/8.3/i...ql-listen.html
http://www.postgresql.org/docs/8.3/i...ql-notify.html

Other way:
use a scheduler (CRON under UNIX) and check regular for new updated
records. For instance, with every update store the PK in an other table.
With CRON check this table, send the email and delete the record in the
table.


end
Andreas
--
Andreas Kretschmer
Linux - weil ich es mir wert bin!
GnuPG-ID 0x3FFF606C http://wwwkeys.de.pgp.net

begin johan.nel (AT) xsinet (DOT) co.za schrieb:
Sure, you do that using an untrusted language for the trigger-function.
But the better way is using listen/notify-mechanism, described here:
http://www.postgresql.org/docs/8.3/i...ql-listen.html
http://www.postgresql.org/docs/8.3/i...ql-notify.html

Other way:
use a scheduler (CRON under UNIX) and check regular for new updated
records. For instance, with every update store the PK in an other table.
With CRON check this table, send the email and delete the record in the
table.


end
Andreas
--
Andreas Kretschmer
Linux - weil ich es mir wert bin!
GnuPG-ID 0x3FFF606C http://wwwkeys.de.pgp.net

begin johan.nel (AT) xsinet (DOT) co.za schrieb:
Sure, you do that using an untrusted language for the trigger-function.
But the better way is using listen/notify-mechanism, described here:
http://www.postgresql.org/docs/8.3/i...ql-listen.html
http://www.postgresql.org/docs/8.3/i...ql-notify.html

Other way:
use a scheduler (CRON under UNIX) and check regular for new updated
records. For instance, with every update store the PK in an other table.
With CRON check this table, send the email and delete the record in the
table.


end
Andreas
--
Andreas Kretschmer
Linux - weil ich es mir wert bin!
GnuPG-ID 0x3FFF606C http://wwwkeys.de.pgp.net

begin johan.nel (AT) xsinet (DOT) co.za schrieb:
Sure, you do that using an untrusted language for the trigger-function.
But the better way is using listen/notify-mechanism, described here:
http://www.postgresql.org/docs/8.3/i...ql-listen.html
http://www.postgresql.org/docs/8.3/i...ql-notify.html

Other way:
use a scheduler (CRON under UNIX) and check regular for new updated
records. For instance, with every update store the PK in an other table.
With CRON check this table, send the email and delete the record in the
table.


end
Andreas
--
Andreas Kretschmer
Linux - weil ich es mir wert bin!
GnuPG-ID 0x3FFF606C http://wwwkeys.de.pgp.net

begin johan.nel (AT) xsinet (DOT) co.za schrieb:
Sure, you do that using an untrusted language for the trigger-function.
But the better way is using listen/notify-mechanism, described here:
http://www.postgresql.org/docs/8.3/i...ql-listen.html
http://www.postgresql.org/docs/8.3/i...ql-notify.html

Other way:
use a scheduler (CRON under UNIX) and check regular for new updated
records. For instance, with every update store the PK in an other table.
With CRON check this table, send the email and delete the record in the
table.


end
Andreas
--
Andreas Kretschmer
Linux - weil ich es mir wert bin!
GnuPG-ID 0x3FFF606C http://wwwkeys.de.pgp.net

Hi Johan.
How are you!?

You can Try pgmail contrib @ http://sourceforge.net/projects/pgmail/
pgmail are some functions in TCL that enable you to send email via
PostgreSQL.
I never used it but have good recomendations about.
Are you a Johan that use Visual Objects from CA/GrafXSoft?

Good luck and send me an email or back here if you need for more...

Best regards.

Lucio Chiessi
Rio de Janeiro - Brazil



On 29 out, 07:08, johan.... (AT) xsinet (DOT) co.za wrote: