t-sql SQL Server Table Sizes

http://www.novicksoftware.com/Articles/sql-server-table-space-reporting-sp_spaceused.htm

-- EXEC [dbo].[dba_SpaceUsed] 'Budget', 'S'


CREATE PROC [dbo].[dba_SpaceUsed]
@SourceDB varchar ( 128 ) = null -- Optional database name
-- If omitted, the current database is reported.
, @SortBy char(1) = 'S' -- N for name, S for Size
-- T for table name
/* Returns a table with the space used in all tables of the
* database. It's reported with the schema information unlike
* the system procedure sp_spaceuse.
*
* sp_spaceused is used to perform the calculations to ensure
* that the numbers match what SQL Server would report.
*
* Compatible with sQL Server 2000 and 2005
*
* Example:
exec dbo.dba_SpaceUsed null, 'T'
*
* © Copyright 2007 Andrew Novick http://www.NovickSoftware.com
* This software is provided as is without warrentee of any kind.
* You may use this procedure in any of your SQL Server databases
* including databases that you sell, so long as they contain
* other unrelated database objects. You may not publish this
* procedure either in print or electronically.
******************************************************************/
AS
SET NOCOUNT ON
DECLARE @sql nvarchar (4000)
IF @SourceDB IS NULL BEGIN
SET @SourceDB = DB_NAME () -- The current DB
END
--------------------------------------------------------
-- Create and fill a list of the tables in the database.
CREATE TABLE #Tables ( [schema] sysname
, TabName sysname )
SELECT @sql = 'insert #tables ([schema], [TabName])
select TABLE_SCHEMA, TABLE_NAME
from ['+ @SourceDB +'].INFORMATION_SCHEMA.TABLES
where TABLE_TYPE = ''BASE TABLE'''
EXEC (@sql)
---------------------------------------------------------------
-- #TabSpaceTxt Holds the results of sp_spaceused.
-- It Doesn't have Schema Info!
CREATE TABLE #TabSpaceTxt (
TabName sysname
, [Rows] varchar (11)
, Reserved varchar (18)
, Data varchar (18)
, Index_Size varchar ( 18 )
, Unused varchar ( 18 )
)
---------------------------------------------------------------
-- The result table, with numeric results and Schema name.
CREATE TABLE #TabSpace ( [Schema] sysname
, TabName sysname
, [Rows] bigint
, ReservedMB numeric(18,3)
, DataMB numeric(18,3)
, Index_SizeMB numeric(18,3)
, UnusedMB numeric(18,3)
)
DECLARE @Tab sysname -- table name
, @Sch sysname -- owner,schema
DECLARE TableCursor CURSOR FOR
SELECT [SCHEMA], TabNAME
FROM #tables
OPEN TableCursor;
FETCH TableCursor into @Sch, @Tab;
WHILE @@FETCH_STATUS = 0 BEGIN
SELECT @sql = 'exec [' + @SourceDB
+ ']..sp_executesql N''insert #TabSpaceTxt exec sp_spaceused '
+ '''''[' + @Sch + '].[' + @Tab + ']' + '''''''';
Delete from #TabSpaceTxt; -- Stores 1 result at a time
EXEC (@sql);
INSERT INTO #TabSpace
SELECT @Sch
, [TabName]
, convert(bigint, rows)
, convert(numeric(18,3), convert(numeric(18,3),
left(reserved, len(reserved)-3)) / 1024.0)
ReservedMB
, convert(numeric(18,3), convert(numeric(18,3),
left(data, len(data)-3)) / 1024.0) DataMB
, convert(numeric(18,3), convert(numeric(18,3),
left(index_size, len(index_size)-3)) / 1024.0)
Index_SizeMB
, convert(numeric(18,3), convert(numeric(18,3),
left(unused, len([Unused])-3)) / 1024.0)
[UnusedMB]
FROM #TabSpaceTxt;
FETCH TableCursor into @Sch, @Tab;
END;
CLOSE TableCursor;
DEALLOCATE TableCursor;
-----------------------------------------------------
-- Caller specifies sort, Default is size
IF @SortBy = 'N' -- Use Schema then Table Name
SELECT * FROM #TabSpace
ORDER BY [Schema] asc, [TabName] asc
ELSE IF @SortBy = 'T' -- Table name, then schema
SELECT * FROM #TabSpace
ORDER BY [TabName] asc, [Schema] asc
ELSE -- S, NULL, or whatever get's the default
SELECT * FROM #TabSpace
ORDER BY ReservedMB desc
;
DROP TABLE #Tables
DROP TABLE #TabSpaceTxt
DROP TABLE #TabSpace