Re: Getting the current value of a sequence - Mailing list pgsql-novice

From hubert depesz lubaczewski
Subject Re: Getting the current value of a sequence
Date
Msg-id 20150423114654.GA19543@depesz.com
Whole thread Raw
In response to Getting the current value of a sequence  (JORGE MALDONADO <jorgemal1960@gmail.com>)
List pgsql-novice
On Thu, Apr 23, 2015 at 06:17:42AM -0500, JORGE MALDONADO wrote:
> I have been trying to get the current value of a sequence without success.
> I have read that "currval" does the job but I do not know how to use it.
> This is what I have tried and I get an error saying that "currval of
> sequence 'name_of_sequence' is not defined for the session.
>
> SELECT currval('name_of_sequence')
> I will very much appreciate your feedback.

You can use currval() only after you used nextval() - in the same db
session.
Why do you want to use currval() before? What is the use case?

Best regards,

depesz

--
The best thing about modern society is how easy it is to avoid contact with it.
                                                             http://depesz.com/


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