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?
