From: | Thomas Good <tomg(at)admin(dot)nrnet(dot)org> |
---|---|
To: | Marc Howard Zuckman <marc(at)fallon(dot)classyad(dot)com> |
Cc: | pgsql-sql(at)postgreSQL(dot)org |
Subject: | Re: [SQL] abusing an aggregate funct |
Date: | 1998-11-15 15:08:40 |
Message-ID: | Pine.LNX.3.96.981115100641.8700A-100000@admin.nrnet.org |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-sql |
On Sat, 14 Nov 1998, Marc Howard Zuckman wrote:
> Use a sequence to generate rec_num. See man create_sequence.
Got it.
Thanks Marc!
> You can then use curval('sequence_name') to get the last
> sequence number generated, or if you are performing an insert:
> insert into crtrd1 (p_key,otherdata) values (nextval('sequence_name',moredata);
>
> You could also create the table using nextval as the default
> value of p_key. You may wish to create a unique_index on
> p_key, but nextval is guaranteed not to generate duplicates
> unless you allow it to rollover.
>
>
>
>
>
> Marc Zuckman
> marc(at)fallon(dot)classyad(dot)com
>
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----
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