Question

I want to write a t-sql query which will simply list all of the years from 2005 to present. But i want this automated so this list will still be current next year. I know I could just hard code years with union. But how do I develop a t-sql query which will automate this?

Answer 1

You can do this using Common Table Expressions (CTEs) and it doesn’t require you to create a temporary table:

DECLARE @TheYear as date
SET @TheYear = '1/1/2005'

;WITH DateIntervalsCTE AS
(
    SELECT 0 i, @TheYear AS [Year]
    UNION ALL
    SELECT i + 1, DATEADD(year, i + 1, @TheYear )
    FROM DateIntervalsCTE 
    WHERE YEAR(DATEADD(year, i, @TheYear )) <= YEAR(GETDATE())
)
SELECT [Year] FROM DateIntervalsCTE