RE: Hey! ORDER BY in VIEWS?

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От Robby Slaughter
Тема RE: Hey! ORDER BY in VIEWS?
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Msg-id EPEHLKLEHAHLONFOKNHNCENADCAA.webmaster@robbyslaughter.com
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Ответ на Hey! ORDER BY in VIEWS?  ("Josh Berkus" <josh@agliodbs.com>)
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I think PostgreSQL allows you to do an ORDER BY in a view, but the real
message is that it just doesn't make any sense. Remember that a view is
just a "virtual table", not a query. If you "order by" as part of it's
definition, there's no guarantee that the data will be orded when you SELECT
FROM later on.

Always, always, always include an ORDER BY clause in every select you do.
(I personally think SQL ought to REQUIRE it!)

-Robby

-----Original Message-----
From: pgsql-sql-owner@postgresql.org
[mailto:pgsql-sql-owner@postgresql.org]On Behalf Of Josh Berkus
Sent: Sunday, July 15, 2001 12:22 PM
To: pgsql-sql@postgresql.org
Subject: [SQL] Hey! ORDER BY in VIEWS?


Tom, Stephan,

Hey!  I thought you couldn't do ORDER BY in views ... yet I just did.
Is this a new thing, or am I just getting my Trasact-SQL and my
PostgreSQL mixed up again?

-Josh



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