Обсуждение: Re: Retrieving tuple data on insert

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Re: Retrieving tuple data on insert

От
"Prasanth"
Дата:
you can retrieve it using the currentVal function on the
sequence used to generate that id.


"sebmil" <sebmil@invalid.mail> wrote in message
news:pan.2003.07.24.03.59.01.164717@invalid.mail...
> Hello,
>
> I have a table with two columns, created with : CREATE TABLE test ( id
> serial primary key, name text ) ;
>
> To populate the table i use :
> INSERT INTO test(name) values('test1'); so the "id" is automatically set
> by PostgreSQL.
>
> Now the problem, i would like to retrieve the value of "id" that
> PostgreSQL assigns to this tuple, but i can't make a SELECT on the name i
> just inserted because it's not UNIQUE, so SELECT may return multiple
> results.
>
> Is there a way to retrieve the value of "id" from the insertion ?
>
> I was thinking of something with Oids, like getting the Oid of the INSERT
> statement then use it to SELECT the tuple, but i didn't find what to do
> with an Oid in PostgreSQL documentation.
>
> Also, it would be better if it was possible in only one operation (not
> INSERT then SELECT).
>
> Thanks in advance.





Re: Retrieving tuple data on insert

От
sebmil
Дата:
> you can retrieve it using the currentVal function on the sequence used to
> generate that id.

Thank you.