Include weekends in date range

Question

Hello,
I have a query that aggregates a value based on a date range and excludes business hours. I need to INCLUDE Saturday and Sunday based on the date range. I am stuck and I think I am at that time of day where your brain decides to quit. Time for some coffee :)
Here is what I have so far and as always, thank you all very much for your help!
declare @StartDate datetime, @EndDate datetime
set @StartDate = '6/1/2013'
set @EndDate = '6/30/2013'
Select sum(abncalls)
from TABLE
where date between @StartDate) and (@EndDate)
and starttime not in (800,830,900,930,1000,1030,1100,1130,1200,1230,1300,1330,1400,1430,1500,1530,1600,1630)
Dave SQL Developer

Answer 1

Something like this you are looking for
Declare 
@beginDate Date, 
@EndDate Date 
set @beginDate = '1/15/2014'
set @EndDate = '1/30/2014'
Declare @Calendar Table 
(CalendarDate Date Primary key, IsWeekend Bit)
While @beginDate <= @endDate 
Begin
Insert Into @Calendar 
  Select
    @beginDate As CalendarDate   
    ,(Case When DATEPART(Weekday, @beginDate) In (7, 1) Then 1 Else 0 End) As IsWeekend 
     Set @beginDate = DateAdd(Day, 1, @beginDate)
End
Select CalendarDate From @Calendar Where IsWeekend = 1 
Select sum(abncalls)
from TABLE
where date in(Select CalendarDate From @Calendar Where IsWeekend = 1 )
and starttime not in (800,830,900,930,1000,1030,1100,1130,1200,1230,1300,1330,1400,1430,1500,1530,1600,1630)
-Prashanth