关于查看MSSQL 数据库 用户每个表 占用的空间大小

最近做项目需要查看数据用户表的大小，包括记录条数和占用的磁盘空间数目。在网上找了很久其中查看mssql数据库每个表占用的空间大小 相对还可以。
不过它的2、3中方法返回的数据比较多，有些是我们不关心的数据，我在adventureworks2012数据上做的测试。其中第二种方法代码如下：

view code
if not exists (select * from dbo.sysobjects where id = object_id(n'[dbo].[tablespaceinfo]') and objectproperty(id, n'isusertable') = 1)
create table tablespaceinfo --创建结果存储表
(nameinfo varchar(50) ,
rowsinfo int , reserved varchar(20) ,
datainfo varchar(20) ,
index_size varchar(20) ,
unused varchar(20) )
delete from tablespaceinfo --清空数据表
declare @tablename varchar(255) --表名称
declare @cmdsql varchar(500)
declare info_cursor cursor for
select o.name
from dbo.sysobjects o where objectproperty(o.id, n'istable') = 1
and o.name not like n'#%%' order by o.name
open info_cursor
fetch next from info_cursor
into @tablename
while @@fetch_status = 0
begin
if exists (select * from dbo.sysobjects where id = object_id(@tablename) and objectproperty(id, n'isusertable') = 1)
execute sp_executesql
n'insert into tablespaceinfo exec sp_spaceused @tbname',
n'@tbname varchar(255)',
@tbname = @tablename
fetch next from info_cursor
into @tablename
end
close info_cursor
deallocate info_cursor
go
--itlearner注：显示数据库信息
sp_spaceused @updateusage = 'true'
--itlearner注：显示表信息
select *
from tablespaceinfo
order by cast(left(ltrim(rtrim(reserved)) , len(ltrim(rtrim(reserved)))-2) as int) desc

运行效果如图：
 
很显然这个返回结果是错误的。但是它提供了一种思路，修改后的sql语句如下：

view code
if not exists ( select  *
                from    sys.tables
                where   name = 'tablespaceinfo' )
    begin
        create table tablespaceinfo --创建结果存储表
            (
              table_name varchar(50) ,
              rows_count int ,
              reserved int ,
              datainfo int ,
              index_size int ,
              unused int
            )
    end
delete  from tablespaceinfo
 --清空数据表
create table #temp --创建结果存储表
    (
      nameinfo varchar(50) ,
      rowsinfo int ,
      reserved varchar(20) ,
      datainfo varchar(20) ,
      index_size varchar(20) ,
      unused varchar(20)
    )
declare @tablename varchar(255)
 --表名称
declare @cmdsql nvarchar(500)
declare info_cursor cursor
for
    select  '[' + table_schema + '].[' + table_name + ']' as table_name
    from    [information_schema].[tables]
    where   table_type = 'base table'
            and table_name <> 'tablespaceinfo'
open info_cursor
fetch next from info_cursor
into @tablename
while @@fetch_status = 0
    begin
        set @cmdsql = 'insert into #temp exec sp_spaceused ''' + @tablename
            + ''''
        execute sp_executesql @cmdsql
        fetch next from info_cursor
into @tablename
    end
close info_cursor
deallocate info_cursor
go
--itlearner注：显示数据库信息
--sp_spaceused @updateusage = 'true'
--itlearner注：显示表信息
update  #temp
set     reserved = replace(reserved, 'kb', '') ,
        datainfo = replace(datainfo, 'kb', '') ,
        index_size = replace(index_size, 'kb', '') ,
        unused = replace(unused, 'kb', '')
insert  into dbo.tablespaceinfo
        select  nameinfo ,
                cast(rowsinfo as int) ,
                cast(reserved as int) ,
                cast(datainfo as int) ,
                cast(index_size as int) ,
                cast(unused as int)
        from    #temp
drop table #temp
select  table_name ,
        rows_count ,
        case when reserved > 1024
             then cast(reserved / 1024 as varchar(10)) + 'mb'
             else cast(reserved as varchar(10)) + 'kb'
        end as data_and_index_reserved ,
        case when datainfo > 1024
             then cast(datainfo / 1024 as varchar(10)) + 'mb'
             else cast(datainfo as varchar(10)) + 'kb'
        end as used ,
        case when index_size > 1024
             then cast(index_size / 1024 as varchar(10)) + 'mb'
             else cast(index_size as varchar(10)) + 'kb'
        end as index_size ,
        case when unused > 1024 then cast(unused / 1024 as varchar(10)) + 'mb'
             else cast(unused as varchar(10)) + 'kb'
        end as unused
from    dbo.tablespaceinfo
order by reserved desc

运行结果如图：

同时他的第三种方法返回的数据太多，很多是我们不怎么关心的，原sql语句如下：

view code

select  object_name(id) tablename ,
 * reserved / 1024 reserved ,
        rtrim(8 * dpages / 1024) + 'mb' used ,
 * ( reserved - dpages ) / 1024 unused ,
 * dpages / 1024 - rows / 1024 * minlen / 1024 free ,
        rows
from    sysindexes
where   indid = 1
order by reserved desc

运行结果如图：

这里面包含一些索引信息，其实我们只关心表占用磁盘信息，修改后的sql语句如下：

view code
select  object_name(id) tablename ,
        case when reserved * 8 > 1024 then rtrim(8 * reserved / 1024) + 'mb'
             else rtrim(reserved * 8) + 'kb'
        end datareserve ,
        case when dpages * 8 > 1024 then rtrim(8 * dpages / 1024) + 'mb'
             else rtrim(dpages * 8) + 'kb'
        end used ,
        case when 8 * ( reserved - dpages ) > 1024
             then rtrim(8 * ( reserved - dpages ) / 1024) + 'mb'
             else rtrim(8 * ( reserved - dpages )) + 'kb'
        end unused ,
        case when ( 8 * dpages / 1024 - rows / 1024 * minlen / 1024 ) > 1024
             then rtrim(( 8 * dpages / 1024 - rows / 1024 * minlen / 1024 )
                        / 1024) + 'mb'
             else rtrim(( 8 * dpages / 1024 - rows / 1024 * minlen / 1024 ))
                  + 'kb'
        end free ,
        rows as rows_count
from    sys.sysindexes
where   indid = 1
        and status = 2066 -- status='18'
order by reserved desc

运行结果如下：

有不对的地方欢迎大家拍砖！