agora inbox for postgres@postgres.berkeley.edu
help / color / mirror / Atom feedFrom: Paul M. Aoki <aoki@cs.berkeley.edu>
To: Bernd Froehlich <bfroehli@AWI-Bremerhaven.DE>
Cc: postgres@postgres.Berkeley.EDU
Subject: Re: Number of instances
Date: Wed, 14 Sep 94 10:34:31 -0700
Message-ID: <199409141734.KAA17479@nobozo.CS.Berkeley.EDU> (raw)
In-Reply-To: <9409141343.AA06321@edvs1.awi-bremerhaven.de>
bfroehli@AWI-Bremerhaven.DE (Bernd Froehlich) writes:
> I'm sure there is a way to get the number of instances in a class.
> Unfortunately I don't know it. Who can give me a hint?
the section in the reference manual on built-in functions describes
the built-in aggregates (such as they are).
retrieve (x = count{foo.oid})
--
Paul M. Aoki | University of California at Berkeley
aoki@CS.Berkeley.EDU | Dept. of EECS, Computer Science Division (#1776)
| Berkeley, CA 94720-1776
==============================================================================
To add/remove yourself to/from the POSTGRES mailing list: send mail with
the subject line ADD or DEL to "postgres-request@postgres.Berkeley.EDU"
If this fails, send mail to "post_questions@postgres.Berkeley.EDU" and
a human will deal with it. DO NOT post to the "postgres" mailing list.
==============================================================================
reply
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: postgres@postgres.berkeley.edu
Cc: aoki@cs.berkeley.edu, bfroehli@AWI-Bremerhaven.DE
Subject: Re: Number of instances
In-Reply-To: <199409141734.KAA17479@nobozo.CS.Berkeley.EDU>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox