Re: INSERT ... RETURNING as Oracle

"Sipos Andras" wrote: >create table basket (
> id serial NOT NULL PRIMARY KEY,
> timestamp timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
>);
>
>How can I make a one step insert into the table and get values of 'ID' ?
>I am trying to find a similar solution as in the oracle's INSERT ...
>RETURNING.
>
>If I use at first the INSERT, and after SELECT MAX(ID), the result will be
>uncertain.

The serial data type is actually an INT4 with a sequence, as you will have
seen when you created your table. Use currval after the insert to get the
latest value of the sequence in your current session.

junk=# create table basket (
junk(# id serial NOT NULL PRIMARY KEY,
junk(# timestamp timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP
junk(# );
NOTICE: CREATE TABLE will create implicit sequence 'basket_id_seq' for SERIAL column 'basket.id'
NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'basket_pkey' for table 'basket'
CREATE
junk=# insert into basket (timestamp) values (now());
INSERT 2091655 1
junk=# select currval('basket_id_seq');
currval
---------
1
(1 row)

--
Oliver Elphick Oliver(dot)Elphick(at)lfix(dot)co(dot)uk
Isle of Wight http://www.lfix.co.uk/oliver
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