SQL Server数据库大小,表大小及行数统计

 

-- 统计某个表的空间大小, 行数信息

EXEC Your_DB.dbo.sp_spaceused 'dbo.t_log';





-- 统计多个数据库多个表的空间大小, 行数信息

create table tmp_table_space(table_name varchar(50), table_rows int, total_size varchar(20),data_size varchar(20), index_size varchar(20),

unused_size varchar(20), dbname varchar(30));

insert into tmp_table_space(table_name,table_rows,total_size,data_size,index_size,unused_size) 

EXEC Your_DB.dbo.sp_spaceused 'dbo.t_log';

insert into tmp_table_space(table_name,table_rows,total_size,data_size,index_size,unused_size) 

EXEC Your_DB.dbo.sp_spaceused 'dbo.t_log2';

update tmp_table_space set dbname='AHBZMJ' where dbname is null;

 


 

 

 

/*************************************************************************

用于查看对应数据库的大小、占用空间以及该数据库中各个系统表、用户表

使用方法：  在查询分析器中选择您要查看的数据库，然后运行此代码即可。

**************************************************************************/

----新建一个表spt_result_table存储数据库中各个表的空间信息

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[spt_result_table]') 

              and OBJECTPROPERTY(id, N'IsUserTable') = 1)

drop table [dbo].[spt_result_table]

GO

 

create table spt_result_table

(

    tablename       varchar(776)      null,  ----表名

    rows varchar(776)      null,  ----表中现有的行数

    reserved varchar(776)      null,  ----为表保留的空间总量

    data varchar(776)      null,  ----表中的数据所使用的空间量

    indexp varchar(776)      null,  ----表中的索引所使用的空间量

    unused varchar(776)      null   ----表中未用的空间量

)ON [PRIMARY]

GO

 

----创建存储过程prc_database_spaceused：计算数据库大小及各个表占用空间的情况

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[prc_database_spaceused]')

           and OBJECTPROPERTY(id, N'IsProcedure') = 1)

drop procedure [dbo].[prc_database_spaceused]

GO

 

create procedure prc_database_spaceused

as

 

BEGIN

    declare @id                 int

    declare @type         character(2)

    declare @pages         int

    declare @dbname             sysname           ----数据库名

    declare @dbsize             dec(15,0)         ----数据库大小

    declare @logsize            dec(15)

    declare @bytesperpage dec(15,0)

    declare @pagesperMB dec(15,0)

    declare @objname            varchar(776)       ----记录表名

 

    declare @database_size       varchar(776)

    declare @unallocated_space   varchar(776)

    select  @dbname = db_name()                   ----数据库为当前数据库

    create table #spt_space

    (

    rows int     null,

    reserved dec(15) null,         ----保留的空间总量

    data dec(15) null,         ----数据使用的空间总量

    indexp dec(15) null,         ----索引使用的空间

    unused dec(15) null          ----未用的空间量

    )

 

    ---- 计算数据大小(以kB页为单位)

    select  @dbsize = sum(convert(dec(15),size))

    from    dbo.sysfiles

    where   (status & 64 = 0)

 

    ---- 计算日志大小(以kB页为单位)

    select  @logsize = sum(convert(dec(15),size))

    from    dbo.sysfiles

    where   (status & 64 <> 0)

 

    ---- 求得一个page有多少bytes

    select  @bytesperpage = low

    from    master.dbo.spt_values

    where   number = 1 and type = 'E'

 

    ---- 计算MB占多少page（MB = 1048576B）

    select  @pagesperMB = 1048576 / @bytesperpage

 

    ---- 计算数据库大小

    set  @database_size   = ltrim(str((@dbsize + @logsize) / @pagesperMB,15,2) + ' MB')

 

    ---- 计算未用的空间量的大小

    set     @unallocated_space   = ltrim(str((@dbsize -

                (select sum(convert(dec(15),reserved))

         from sysindexes

         where indid in (0, 1, 255)

                 )) / @pagesperMB,15,2)+ ' MB')

 

    ---- 保留的空间总量

    insert into #spt_space (reserved)

    select sum(convert(dec(15),reserved))

    from   sysindexes

    where  indid in (0, 1, 255)

 

    select @pages = sum(convert(dec(15),dpages))

    from   sysindexes

    where  indid < 2

 

    select @pages = @pages + isnull(sum(convert(dec(15),used)), 0)

    from   sysindexes

    where  indid = 255

 

    ---- 数据使用的空间总量

    update #spt_space

    set    data = @pages

 

    ---- 索引使用的空间

    update #spt_space

    set    indexp = (select sum(convert(dec(15),used))

                     from   sysindexes

                     where  indid in (0, 1, 255))- data

 

    ---- 未用的空间量

    update #spt_space

    set    unused = reserved - (select sum(convert(dec(15),used))

            from   sysindexes

            where  indid in (0, 1, 255))

    ---- 输出数据库大小信息

    select

        database_name     = @dbname,

        database_size     = @database_size,

        unallocated_space = @unallocated_space,

        reserved          = ltrim(str(reserved * d.low / 1024.,15,0) + ' ' + 'KB'),

        data              = ltrim(str(data * d.low / 1024.,15,0) + ' ' + 'KB'),

        index_size        = ltrim(str(indexp * d.low / 1024.,15,0) + ' ' + 'KB'),

        unused            = ltrim(str(unused * d.low / 1024.,15,0) + ' ' + 'KB')

    from   #spt_space, master.dbo.spt_values d

    where  d.number = 1

    and    d.type = 'E'

 

    ---- 清空临时表#spt_space

    delete from  #spt_space

 

    -----定义游标，计算表大小信息

    declare  cur_table  cursor for

    select   name

    from     sysobjects

    where    xtype = 'U' or xtype = 'S'

    order    by  xtype  asc

 

    -----打开游标

    open     cur_table

    fetch    next from cur_table   into  @objname

    while    (@@fetch_status = 0)

    begin

 

    select @id = null

    select @id = id,

           @type = xtype

    from   sysobjects

    where  id = object_id(@objname)

 

    --dbcc updateusage(0,@objname) with no_infomsgs

 

    insert into #spt_space (reserved)

    select sum(reserved)

    from   sysindexes

    where  indid in (0, 1, 255)

    and    id = @id

 

    select @pages = sum(dpages)

    from   sysindexes

    where  indid < 2

    and    id = @id

 

    select @pages = @pages + isnull(sum(used), 0)

    from   sysindexes

    where  indid = 255

    and    id = @id

 

    update #spt_space

    set    data = @pages

 

    update #spt_space

    set    indexp = (select sum(used)

    from   sysindexes

    where  indid in (0, 1, 255)

    and    id = @id) - data

 

    update #spt_space

    set    unused = reserved - (select sum(used)

        from   sysindexes

        where  indid in (0, 1, 255)

        and    id = @id)

 

    update #spt_space

    set    rows = i.rows

    from   sysindexes i

    where  i.indid < 2

    and    i.id = @id

 

    insert into spt_result_table

    select tablename = object_name(@id),

           rows = convert(char(11), rows),

           reserved = ltrim(str(reserved * d.low / 1024.,15,0) +  ' ' + 'KB'),

           data = ltrim(str(data * d.low / 1024.,15,0) +  ' ' + 'KB'),

           index_size = ltrim(str(indexp * d.low / 1024.,15,0) + ' ' + 'KB'),

           unused = ltrim(str(unused * d.low / 1024.,15,0) + ' ' + 'KB')

    from   #spt_space, master.dbo.spt_values d

    where  d.number = 1

    and    d.type = 'E'

 

    truncate table  #spt_space

 

    fetch   next from cur_table   into @objname

    end

    close        cur_table

    deallocate   cur_table

 

    select * from spt_result_table where tablename is not null;

    drop table #spt_space

END

GO



 

exec prc_database_spaceused

 

---- 删除spt_result_table表

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[spt_result_table]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)

drop table [dbo].[spt_result_table]

GO

 

---- 删除存储过程prc_database_spaceused

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[prc_database_spaceused]')

           and OBJECTPROPERTY(id, N'IsProcedure') = 1)

drop procedure [dbo].[prc_database_spaceused]

GO

方法二：表明和行数

   SELECT   a.name, b.rows
   FROM      sysobjects AS a INNER JOIN
   sysindexes AS b ON a.id = b.id
     WHERE   (a.type = 'u') AND (b.indid IN (0, 1))
     ORDER BY b.rows DESC