Re: Trigger usecase
Adrian Klaver <adrian.klaver@aklaver.com>
From: Adrian Klaver <adrian.klaver@aklaver.com>
To: sud <suds1434@gmail.com>, Laurenz Albe <laurenz.albe@cybertec.at>,
"David G. Johnston" <david.g.johnston@gmail.com>
Cc: pgsql-general <pgsql-general@lists.postgresql.org>
Date: 2024-07-30T18:50:48Z
Lists: pgsql-general
On 7/30/24 11:46, sud wrote: > > On Tue, Jul 30, 2024 at 10:54 PM Laurenz Albe <laurenz.albe@cybertec.at > <mailto:laurenz.albe@cybertec.at>> wrote: > > > It is largely a matter of taste. > > The advantage of a trigger is that it works even if somebody > bypasses the application > to insert data. > > I think that triggers are easy to debug, but again, that's a matter > of taste. > > > Thank you David and Laurenz. > > Creating triggers to populates some audit table or say populating data > in audit columns (created_by, updated_by,created_date,updated_date) is > fine i believe, however this use case was to load/persist data in table > with SCD-2 style, so is it good idea to use the trigger for such use case? > > Not sure of the exact pros and cons, but we were following certain rules > like , if it's business logic which needs to be implemented in Database, > then it should not be done using triggers but rather should be done > through database procedure/functions. Hope this understanding correct. Triggers have to use procedures/functions so I am not understanding the issue. > > Regards > Sud -- Adrian Klaver adrian.klaver@aklaver.com