How to set a DateTime variable in SQL Server 2008?

Question

SQL Server 2008 is not doing what I expected with DateTime. It doesn\'t let me set DateTime variables, no matter what date format I use.

Wh

Answer 1

Check This:

DECLARE
    @_month TINYINT         = 5,
    @_year SMALLINT         = 2020,
    @date_ref DATETIME      = NULL 


    IF @_year IS NULL
        SET @date_ref = GETDATE() - 430
    ELSE
    BEGIN
        SELECT @date_ref = CAST ( CAST ( @_year AS VARCHAR (4)) 
            + 
            CASE 
                WHEN @_month < 10 THEN '0' + CAST ( @_month AS VARCHAR(1)) 
                ELSE CAST ( @_month AS VARCHAR(2)) 
            END 
            + 
            '01' AS DATETIME )
    END