Check Used Table Space for User Defined Tables

DECLARE
	@TABLENM SYSNAME,
	@CNT INT,
	@TOPN INT
DECLARE TABLE_SPACE CURSOR FAST_FORWARD
	FOR 
		 SELECT
		 NAME
		 FROM SYSOBJECTS
		 WHERE XTYPE = 'U'
SELECT @CNT = 0, @TOPN = 0
CREATE TABLE #TMPUSAGE
	 (
		 NAME SYSNAME,
		 ROWS INT,
		 RESERVED VARCHAR(20),
		 DATA VARCHAR(20),
		 INDEX_SIZE VARCHAR(20),
		 UNUSED VARCHAR(20)
	 )
OPEN TABLE_SPACE
FETCH NEXT FROM TABLE_SPACE INTO @TABLENM
WHILE @@FETCH_STATUS = 0 AND @CNT <= @TOPN
BEGIN
	INSERT INTO #TMPUSAGE 
	EXEC SP_SPACEUSED @TABLENM, 'TRUE'
 IF
	@TOPN <> 0
	SELECT @CNT = @CNT +1
	FETCH NEXT FROM TABLE_SPACE INTO @TABLENM
 END
CLOSE TABLE_SPACE
DEALLOCATE TABLE_SPACE
SELECT 
 	*
FROM 
	#TMPUSAGE 
ORDER BY 
	CONVERT(INT,LEFT(RESERVED, LEN(RESERVED)- 3)) DESC

IF (SELECT OBJECT_ID('TEMPDB..#TMPUSAGE') ) IS NOT NULL
DROP TABLE #TMPUSAGE