/SQL/How to get number of months between 2 dates sql server

How to get number of months between 2 dates sql server

CREATE FUNCTION FullMonthsSeparation 
(
    @DateA DATETIME,
    @DateB DATETIME
)
RETURNS INT
AS
BEGIN
    DECLARE @Result INT

    DECLARE @DateX DATETIME
    DECLARE @DateY DATETIME

    IF(@DateA < @DateB)
    BEGIN
        SET @DateX = @DateA
        SET @DateY = @DateB
    END
    ELSE
    BEGIN
        SET @DateX = @DateB
        SET @DateY = @DateA
    END

    SET @Result = (
                    SELECT 
                    CASE 
                        WHEN DATEPART(DAY, @DateX) > DATEPART(DAY, @DateY)
                        THEN DATEDIFF(MONTH, @DateX, @DateY) - 1
                        ELSE DATEDIFF(MONTH, @DateX, @DateY)
                    END
                    )

    RETURN @Result
END
GO

SELECT dbo.FullMonthsSeparation('2009-04-16', '2009-05-15') as MonthSep -- =0
SELECT dbo.FullMonthsSeparation('2009-04-16', '2009-05-16') as MonthSep -- =1
SELECT dbo.FullMonthsSeparation('2009-04-16', '2009-06-16') as MonthSep -- =2

Source: stackoverflow.com

Similar codes

0 vote263 views1 answer
SQL SERVER Add Identity Column to existing table
SQL
0 vote221 views1 answer
Mysql check if lowercase
SQL
62 votes239 views8 answers
Mysql add column
SQL
8 votes229 views4 answers
Postgresql server restart
SQL
56 votes386 views5 answers
Psql create user
SQL
1 vote209 views1 answer
Delete row mssql
SQL
2 votes229 views1 answer
Oracle convert run_duration to number
SQL
10 votes236 views4 answers
Else if mysql
SQL
1 vote225 views1 answer
Psql autocomplete for mac brew install
SQL
0 vote216 views1 answer
Mysql search multiple tables
SQL