Generate a Start and End Date Range using T-SQL

I was generating a date range by specifying a Start and End Date and an interval. I wanted the following output with an interval of 3 days (including the start date):

StartDate EndDate

2010-01-01 00:00:00.000 2010-01-03 00:00:00.000
2010-01-04 00:00:00.000 2010-01-06 00:00:00.000

and so on..

Here’s the query (thanks toTGBraitman) to generate the range:

DECLARE
@StartDate datetime = '2010-01-01',
@EndDate datetime = '2010-03-01',
@interval smallint = 3

;WITH CTE as
(
       SELECT @StartDate as StDt
       UNION ALL
       SELECT DATEADD(day, @interval, StDt)
       FROM   CTE
       WHERE  DATEADD(day, @interval, StDt) <= @EndDate    
)

SELECT StDt as StartDate,
DATEADD(day, @interval-1, StDt) as EndDate
FROM CTE

OUTPUT