SQL 显示所有表所占存储空间

USE master
SELECT
      dbname = DB_NAME(),
      name,
      [已分配MB] = reserved*8/1024,
      [已使用MB] = used*8/1024,
      [未使用MB] = (CASE WHEN reserved > used THEN reserved-used else 0 END)*8/1024,
      [使用率] = (CASE WHEN (reserved <= 0 OR reserved <= used) THEN 100 ELSE (used)*100/reserved END),
      [数据MB] = data*8/1024,
      [索引MB] = (CASE WHEN used > data THEN used-data ELSE 0 END)*8/1024,
      [记录数] = rowcounts
FROM
(
      SELECT
            o.name,
            SUM(p.reserved_page_count) AS reserved,
            SUM(p.used_page_count) AS used,
            SUM(CASE WHEN (p.index_id) < 2 THEN (p.in_row_data_page_count + p.lob_used_page_count + p.row_overflow_used_page_count) ELSE (p.lob_used_page_count + p.row_overflow_used_page_count) END) AS Data,
            SUM(CASE WHEN (p.index_id) < 2 THEN row_count ELSE 0 END) AS rowcounts
      FROM sys.objects o
            INNER JOIN sys.dm_db_partition_stats p
                  ON p.object_id = o.object_id
      --WHERE o.is_ms_shipped = 0
      GROUP BY o.name
) T
ORDER BY [已分配MB] DESC