Re: staggered query?

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От Denis P Gohel
Тема Re: staggered query?
Дата
Msg-id 003601c4276f$ecac8980$3332a8c0@DENIS
обсуждение исходный текст
Ответ на staggered query?  ("Vincent Ladlad" <vincentl@ntsp.nec.co.jp>)
Ответы Re: staggered query?  ("Vincent Ladlad" <vincentl@ntsp.nec.co.jp>)
Список pgsql-sql
Hi Try this..
SELECT Col1 , Col2FROM yourtableWHERE to_number(to_char(col1, 'SS'),'99') / 10 ) in(10,20,30,40,50,00);
HTH
Denis


> ----- Original Message -----
> From: Vincent Ladlad <vincentl@ntsp.nec.co.jp>
> To: <vincentl@ntsp.nec.co.jp>
> Sent: Wednesday, April 21, 2004 8:23 AM
> Subject: [SQL] staggered query?
>
>
> > hi! im new to SQL, and i need to find a solution
> > to this problem:
> >
> > i have a table with two columns, the first column
> > is of type timestamp.
> >
> > the table contains hundreds of thousands of records.
> > i need to get all the entries/records  at every 10 seconds
> > interval.  example, given a table:
> >
> > hh/mm/ss | data
> > ---------------
> > 00:00:00   1
> > 00:00:01   2
> > 00:00:02   3
> > 00:00:03   4
> > 00:00:04   5
> > 00:00:05   6
> > 00:00:06   7
> > 00:00:07   8
> > ..
> > ..
> >
> > my query should return:
> > 00:00:10
> > 00:00:20
> > 00:00:30
> > (etc)
> >
> > is this possible? if yes, how do i do it?
> >
> > thanks!
> >
> > ---
> > Outgoing mail is certified Virus Free.
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> > ---------------------------(end of broadcast)---------------------------
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>




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