Re: Oracle SQL/group by/decode

David Howland wrote:

> Hi all:
> I am trying to write an SQL in Oracle and could use some help. I have a
> table
> that has 2 columns (lets say), col1 is a timestamp and column 2 is an id.
> Using
> a join to another table I can extract a count of the id's I want and want to
> group by
> a range of times. For example:
>
> time id
> 01:25 1
> 01:45 2
> 01:55 3
> 02:25 4
> 03:15 5
> 04:25 6
> 05:35 7
> 06:45 8
> 07:00 9
> 08:15 10
> 09:25 11
>
>
>
>
> Okay, so in conclusion I need an SQL that will get a count of the number of
> id's by
> a range and return something like
>
> time occurrences
>
> 01:00 - 02:00 3
> 02:00 - 03:00 1
> 03:00 - 04:00 1
> 04:00 - 05:00 1
>
>
> etc....
>
>
> I have tried Oracle's decode and it doesn't seem that I can test ranges of
> data in the condition and I can't find examples of 'case' anywhere, nor get
> it to work. Group doesn't appear to allow this kind of functionality.
> Any thoughts?
> thanks, Dave
>
>
>
>

Try to check the sql*plus rank over.
/Svend Jensen Received on Thu Feb 21 2002 - 12:43:02 CST