Обсуждение: Yearly Archival System Using PostgreSQL

I am developing a database system using PostgreSQL in which I should be
able to delete  redundant records once a year (Time specified by the
user). THe redundant records should be inserted into the archive table
which is part of the same database.

Is this possible in pgsql? Can I program a function in SQL or a trigger
to fire when the computer switches on say Jan 1 of every year?

Will be grateful if anybody could point me in the right direction.

Vivek

On Thu, Jul 14, 2005 at 02:24:17AM -0700, Vivek wrote:
> I am developing a database system using PostgreSQL in which I should be
> able to delete  redundant records once a year (Time specified by the
> user). THe redundant records should be inserted into the archive table
> which is part of the same database.
> 
> Is this possible in pgsql? Can I program a function in SQL or a trigger
> to fire when the computer switches on say Jan 1 of every year?

This is asked and answered from time to time; search the archives
for past discussion.  The usual answer is to use your operating
system's mechanism for scheduling period jobs, e.g., cron on Unix.

-- 
Michael Fuhr
http://www.fuhr.org/~mfuhr/