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T-SQL row Count by hourly range on datetime field

If you want to row count hourly based on date range like this:



You can try with this SQL:


  ;with mycte as (Select case when datepart(hour, tprocesstime) between 0 and 8 then 0   
           when datepart(hour, tprocesstime) >= 21 then 21  
           else datepart(hour, tprocesstime) end as OnHour  
                          , * From profile)   
 Select Case OnHour when 0 then '0AM-9AM'  
              when 9 then '9AM-10AM'  
              when 10 then '10AM-11AM'  
              when 11 then '11AM-12PM'  
              when 12 then '12PM-1PM'  
              when 13 then '1PM-2PM'  
              when 14 then '2PM-3PM'  
              when 15 then '3PM-4PM'  
              when 16 then '4PM-5PM'  
              when 17 then '5PM-6PM'  
              when 18 then '6PM-7PM'  
              when 19 then '7PM-8PM'  
              when 20 then '8PM-9PM'  
              when 21 then 'Above 9PM' end OnHourRange,  
  SUM(CASE WHEN left(datename(dw, tprocesstime), 3)='Sun' THEN 1 else 0 end ) as [Sun]  
 ,SUM(CASE WHEN left(datename(dw, tprocesstime), 3)='Mon' THEN 1 else 0 end ) as [Mon]  
 ,SUM(CASE WHEN left(datename(dw, tprocesstime), 3)='Tue' THEN 1 else 0 end ) as [Tue]  
 ,SUM(CASE WHEN left(datename(dw, tprocesstime), 3)='Wed' THEN 1 else 0 end ) as [Wed]  
 ,SUM(CASE WHEN left(datename(dw, tprocesstime), 3)='Thu' THEN 1 else 0 end ) as [Thu]  
 ,SUM(CASE WHEN left(datename(dw, tprocesstime), 3)='Fri' THEN 1 else 0 end ) as [Fri]  
 ,SUM(CASE WHEN left(datename(dw, tprocesstime), 3)='Sat' THEN 1 else 0 end ) as [Sat]  
  FROM mycte   
  Group by OnHour


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