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Get Count By Time Slot

Hi
I have the following raw data
Date Number Of Calls        Average Wait Time(seconds)
1-Feb-10      2        7.12
2-Feb-10      5        10.2
3-Feb-10      20        19.02
4-Feb-10      2        2.33
5-Feb-10      1        0.09
6-Feb-10      6        1.12
7-Feb-10      8        8.34

and I wish to get this from the raw data

Wait Time Slot      Number of Calls
< 5 seconds        9
5 - 10 seconds      10
10 - 15 seconds      5
15 - 20 seconds      20

Has anyone any ideas about something clever I can do with SQL and the RANK() function or something to get the data grouped and totaled by the different Wait Time slots?

deighton

If the first set of data is raw data, then the breakdown of how that average was achieved is not there, and I can't see how you can do that.

for example on 3rd feb, you need to know ho long each of those 50 calls lasted

Ephraim Wangoya

try this

select [Number Of Calls], TimeSlot
from
	(select [Number Of Calls],
		   case 
			 when [Average Wait Time] < 5 then
			   '<6'
			 when [Average Wait Time] < 11 then
			   '6-10'  
			 when [Average Wait Time] < 16 then
			   '11-15'  
			 when [Average Wait Time] < 21 then
			   '16-20'
		   end as TimeSlot
	from  table1) A
group by A.[Number Of Calls], A.TimeSlot

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Ephraim Wangoya

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