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.Elphick@lfix.co.uk
Isle of Wight                              http://www.lfix.co.uk/oliver
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