case statement for where clause

Hi Experts,

Exclude or include where clause based on parameter value,

CREATE TABLE #TEMP
(
	ID	CHAR(1)
)

INSERT INTO #TEMP VALUES ( '1' )
INSERT INTO #TEMP VALUES ( '2' )
INSERT INTO #TEMP VALUES ( '3' )

DECLARE	@ID	CHAR(1)
SET		@ID	=	''--'2'

SELECT	*
FROM	#TEMP
WHERE	1 = CASE WHEN LEN(@ID) <> 0 THEN @ID ELSE 1 END

DROP TABLE #TEMP

Any help?

Thanks

Kumar

Please do let us know your feedback. Thank You - KG, MCTS