Table Information View -- No Cursors!

,

One of the most frequent request I get is for a procedure that can return sp_SpaceUsed type information for every table in a SQL Server 2005 database. This is easy enough to do with cursors and dynamic SQL, but after looking at how sp_SpaceUsed worked and how SMO gets the same information, I decided that I could write it without either.

Even better, once I wrote it though, I realized that it could easily be rewritten as a view. Now I could reuse it by joining it with other tables and views in new queries or procedures whenever I wanted. Enjoy!

/*
	vwTableInfo - Table Information View

 This view display space and storage information for every table in a
SQL Server 2005 database.
Columns are:
	Schema
	Name
	Owner		may be different from Schema)
	Columns		count of the max number of columns ever used)
	HasClusIdx	1 if table has a clustered index, 0 otherwise
	RowCount
	IndexKB		space used by the table's indexes
	DataKB		space used by the table's data

 16-March-2008, RBarryYoung@gmail.com
 31-January-2009, Edited for better formatting
*/
--CREATE VIEW vwTableInfo
-- AS
SELECT SCHEMA_NAME(tbl.schema_id) as [Schema]
, tbl.Name
, Coalesce((Select pr.name 
        From sys.database_principals pr 
        Where pr.principal_id = tbl.principal_id)
    , SCHEMA_NAME(tbl.schema_id)) as [Owner]
, tbl.max_column_id_used as [Columns]
, CAST(CASE idx.index_id WHEN 1 THEN 1 ELSE 0 END AS bit) AS [HasClusIdx]
, Coalesce( (Select sum (spart.rows) from sys.partitions spart 
    Where spart.object_id = tbl.object_id and spart.index_id < 2), 0) AS [RowCount]

, Coalesce( (Select Cast(v.low/1024.0 as float) 
    * SUM(a.used_pages - CASE WHEN a.type <> 1 THEN a.used_pages WHEN p.index_id < 2 THEN a.data_pages ELSE 0 END) 
        FROM sys.indexes as i
         JOIN sys.partitions as p ON p.object_id = i.object_id and p.index_id = i.index_id
         JOIN sys.allocation_units as a ON a.container_id = p.partition_id
        Where i.object_id = tbl.object_id  )
    , 0.0) AS [IndexKB]

, Coalesce( (Select Cast(v.low/1024.0 as float)
    * SUM(CASE WHEN a.type <> 1 THEN a.used_pages WHEN p.index_id < 2 THEN a.data_pages ELSE 0 END) 
        FROM sys.indexes as i
         JOIN sys.partitions as p ON p.object_id = i.object_id and p.index_id = i.index_id
         JOIN sys.allocation_units as a ON a.container_id = p.partition_id
        Where i.object_id = tbl.object_id)
    , 0.0) AS [DataKB]
, tbl.create_date, tbl.modify_date

 FROM sys.tables AS tbl
  INNER JOIN sys.indexes AS idx ON (idx.object_id = tbl.object_id and idx.index_id < 2)
  INNER JOIN master.dbo.spt_values v ON (v.number=1 and v.type='E')

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