Re: Firebird and PostgreSQL at the DB Corral.

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От Paul Ganainm
Тема Re: Firebird and PostgreSQL at the DB Corral.
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Msg-id MPG.1a5041f4bcc475339896bb@news.gmane.org
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Ответ на Firebird and PostgreSQL at the DB Corral.  (Paul Ganainm <paulsnewsgroups@hotmail.com>)
Ответы Re: Firebird and PostgreSQL at the DB Corral.
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spam_eater@gmx.net says...


> > What then is a derived table, or is a derived table just a synonym for
> > inline view?

> I'm not sure what the "official" name for this is. I have heard both. So
> from my point of view a derived table and an inline view are the same.


OK - I'm fine with the idea that there can be more than one name for the
same thing, and that different geographies and/or cultures can mean that
people use synonyms.


I've recently started looking at Oracle as well - boy oh boy, you'd want
to know your FTLA's with that system!


> > What's wrong with SELECT COUNT(col1) FROM table?

> Nothing. But my statement was just an example to show the syntax.

> But sometimes when things get more complicated it *is* very handy, and I
> have used it now and then, and wouldn't want to miss it :-)


OK, fine. Can you show me an example of where your construct (inline
view and/or derived table) behaves differently from and is better than
the syntax that I used?


Paul...


> Thomas


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