Re: INSERT question

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От Roland Roberts
Тема Re: INSERT question
Дата
Msg-id m21yizhkej.fsf@tycho.rlent.pnet
обсуждение исходный текст
Ответ на Re: INSERT question  (Jason Earl <jason.earl@simplot.com>)
Ответы Re: INSERT question  ("Andrew G. Hammond" <drew@xyzzy.dhs.org>)
Re: INSERT question  (Jason Earl <jason.earl@simplot.com>)
Re: INSERT question  ("Ross J. Reedstrom" <reedstrm@rice.edu>)
Список pgsql-sql
>>>>> "Jason" == Jason Earl <jason.earl@simplot.com> writes:
   Jason> Even better, however, is to use the functions nextval() and   Jason> currval() like so:
   Jason> INSERT INTO parent_table (data) values ('some data');   Jason> INSERT INTO child_table (parent, more_data)
Jason>        (currval('parent_table_p_key_seq'),    Jason>          'more data');
 

The above is probably the best for a pure-SQL way with the caveat
that it should be wrapped in a transaction or currval() may not be
what you expect; i.e., another client may add a row and you get a
value different from what you inserted.

roland
--            PGP Key ID: 66 BC 3B CD
Roland B. Roberts, PhD                             RL Enterprises
roland@rlenter.com                     76-15 113th Street, Apt 3B
roland@astrofoto.org                       Forest Hills, NY 11375


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