IIF and CHOOSE in Sql Server

-->Features are avaliable in Sql Server 2012

DECLARE @X INT;

SET @X=50;

DECLARE @Y INT;

SET @Y=60;

Select iif(@X > @Y, 50, 60) As IIFResult

DECLARE @ShowIndex INT;

SET @ShowIndex =3;

Select Choose(@ShowIndex, 'A','N','U','R','A','G','N','K') As ChooseResult