From: | <operationsengineer1(at)yahoo(dot)com> |
---|---|
To: | Richard Broersma Jr <rabroersma(at)yahoo(dot)com>, "pgsql-sql(at)postgresql(dot)org" <pgsql-sql(at)postgresql(dot)org> |
Subject: | Re: How To Exclude True Values |
Date: | 2006-06-07 23:29:28 |
Message-ID: | 20060607232928.51859.qmail@web33310.mail.mud.yahoo.com |
Views: | Raw Message | Whole Thread | Download mbox | Resend email |
Thread: | |
Lists: | pgsql-sql |
> > Richard,
> >
> > i got the expected rewsults! now i just have to
> study
> > the query to figure out what it does. -lol-
> >
> > i tried using AS, but i only did it in one place -
> > doh! the error message just moved to the next
> place i
> > didn't do it. i'll know better next time.
> >
> > thanks for the help.
>
> I am surprised that the query did not work the first
> time without the optional AS keyword. I
> would be interested in knowing why your server
> requires the AS and mine doesn't.
my dev box is winxp home with pgsql 8.1.3 (i think it
is .3, anyway). if platform issues don't expain it,
then i don't know what it is.
i think i've figured out the gist of the thought
process behind the SQL query...
1. select everything from t_inspect_result as table a
2. select max timestamp value entries in
t_inspect_result as table b
3. choose only choose those rows where the max
timestamps of table a and b are equal.
is that about it?
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