Hi,
In case you doing all this to replicate tables
conside contrib/dbmirror it does it fairly elegantly.
regds
mallah.
On Friday 20 September 2002 13:55, wit wrote:
> Hello,
>
> I have a question about trigger. I have tables with the following
> structure:
>
> create table A (
> e_codeA char(5) default '' not null,
> n_codeA varchar(20) default '' not null,
> constraint A_pkey primary key ( e_codeA )
> );
>
> create table B (
> e_codeB char(5) default '' not null,
> e_codeA char(5) default '' not null
> constraint e_codeA_ref references A( e_codeA )
> on delete cascade on update cascade,
> n_codeB varchar(20) default '' not null,
> constraint B_pkey primary key ( e_tranB, e_codeA )
> );
>
> I have trigger and procedure on table B to capture any change and insert
> into table logB:
> create trigger trigger_b before insert or update or delete on B for
> each row execute procedure log_change();
>
> When I update e_codeA in table A, the constrain trigger will update e_codeA
> in B. My trigger, trigger_b, also was trigged and procedure will record
> change into table logB too.
> How to write a code in my db procedure to check whether the procedure was
> called by normal SQL or was called by cascade trigger.
>
> Regards,
> wit
>
>
>
>
>
> ---------------------------(end of broadcast)---------------------------
> TIP 1: subscribe and unsubscribe commands go to majordomo@postgresql.org
--
Rajesh Kumar Mallah,
Project Manager (Development)
Infocom Network Limited, New Delhi
phone: +91(11)6152172 (221) (L) ,9811255597 (M)
Visit http://www.trade-india.com ,
India's Leading B2B eMarketplace.