select
object_name(id) tablename,
8*reserved/1024 reserved,
rtrim(8*dpages/1024)+‘Mb‘ used,
8*(reserved-dpages)/1024 unused,
8*dpages/1024-rows/1024*minlen/1024 free
,rows
from sysindexes
order by reserved desc
原文：http://www.cnblogs.com/FKdelphi/p/4642813.html