agora inbox for [email protected]
help / color / mirror / Atom feedFrom: M.S.Jackson <[email protected]>
To: [email protected]
Subject: A few questions
Date: Tue, 29 Sep 92 9:27:24 MET DST
Message-ID: <[email protected]> (raw)
I have two very straightforward questions:
1) The following script creates and uses a function to find the names
of all highly paid employees. How would I alter it to find all the
attributes of highly paid employees?
spog > create EMP (name=text, salary=int4, age=int4,dept=char16)
CREATE successful
spog > append EMP(name="JOE",salary=1400,age=40,dept="shoe")
APPEND 54708 successful
spog > append EMP(name="Sam",salary=1200,age=29,dept="toy")
APPEND 54720 successful
spog > append EMP(name="Bill",salary=1200,age=29,dept="candy")
APPEND 54721 successful
spog > define function high_pay (language="postquel", returntype = setof EMP)
as "retrieve (EMP.all) where EMP.salary > 1200"
DEFINE successful
spog > retrieve (names=name(high_pay()))
JOE
2) The paper entitled "The POSTGRES Data Model" by Rowe and Stonebraker
talks about relation attributes of type procedure. It gives an example
of a column declared with type postquel. Has this idea been abandoned?
--
*****************************************************************************
* *
* Mike Jackson *
* Reader in Software Engineering *
* School of Computing and Information Technology *
* University of Wolverhampton *
* Wulfruna St. Phone: +44 902 322194 *
* Wolverhampton WV1 1LY Fax: +44 902 322268 *
* UNITED KINGDOM e-mail: [email protected] *
* *
*****************************************************************************
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: [email protected]
Cc: [email protected]
Subject: Re: A few questions
In-Reply-To: <[email protected]>
* 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