SQLServer查看各个表大小

最新推荐文章于 2025-05-27 15:00:00 发布

乌龙玛奇朵519

最新推荐文章于 2025-05-27 15:00:00 发布

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文章标签： sqlserver 前端 javascript

本文链接：https://blog.youkuaiyun.com/zhengjuqiang/article/details/131466621

该文提供了一段SQL脚本，用于在SQLServer中查看各个用户表的大小，包括总大小、数据大小、索引大小和未使用空间，以及表的行数。此外，还展示了如何查看所有表的占用空间和特定表字段的信息。

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SQLServer查看各个表大小

--SQLServer查看各个表大小

declare @id int  
declare @type character(2)  
declare @pages  
int  
declare @dbname sysname 
declare @dbsize dec(15,0) 
declare @bytesperpage dec(15,0) 
declare @pagesperMB dec(15,0) 
 
create table #spt_space 
( 
  objid int null, 
  rows int null, 
  reserved dec(15) null, 
  data dec(15) null, 
  indexp dec(15) null, 
  unused dec(15) null 
) 
 
set nocount on 
 
-- Create a cursor to loop through the user   tables 
declare c_tables cursor for 
select id 
from sysobjects 
where xtype = 'U' 
 
open c_tables 
 
fetch next from c_tables 
into @id 
 
while @@fetch_status = 0 
begin 
 
  /* Code from sp_spaceused */ 
  insert into #spt_space (objid, reserved) 
  select objid = @id, 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 
  where objid = @id 
 
 
  /* index: sum(used) where indid in (0, 1, 255) - data */ 
  update #spt_space 
  set indexp = (select sum(used) 
  from sysindexes 
  where indid in (0, 1, 255) 
  and id = @id) 
    - data 
  where objid = @id 
 
  /* unused: sum(reserved) - sum(used) where indid in (0, 1, 255) */ 
  update #spt_space 
  set unused = reserved 
  - (select sum(used) 
  from sysindexes 
  where indid in (0, 1, 255) 
  and id = @id) 
  where objid = @id 
 
  update #spt_space 
  set rows = i.rows 
  from sysindexes i 
  where i.indid < 2 
  and i.id = @id 
  and objid = @id 
 
  fetch next from c_tables 
  into @id 
end 
 
select TableName = (select left(name,60) from sysobjects where id = objid), 
  Rows = convert(char(11), rows), 
  ReservedKB = ltrim(str(reserved * d.low / 1024.,15,0) + ' ' + 'KB'), 
  DataKB = ltrim(str(data * d.low / 1024.,15,0) + ' ' + 'KB'), 
  IndexSizeKB = ltrim(str(indexp * d.low / 1024.,15,0) + ' ' + 'KB'), 
  UnusedKB = 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' 
order by reserved desc  
drop table #spt_space 

close c_tables 
deallocate c_tables

–查看数据表占用硬盘的空间大小

	 create table test(
name varchar(50),
rows int,
reserved varchar(20),
data varchar(20),
index_size varchar(20),
unused varchar(20)
)
insert into test
exec sp_MSforeachtable "exec sp_spaceused '?'"
select * from test order by cast(replace(reserved,'KB','') as int) desc

–查看指定数据表字段大小

SELECT 
     表名       = case when a.colorder=1 then d.name else '' end,
     表说明     = case when a.colorder=1 then isnull(f.value,'') else '' end,
     字段序号   = a.colorder,
     字段名     = a.name,
     标识       = case when COLUMNPROPERTY( a.id,a.name,'IsIdentity')=1 then '√'else '' end,
     主键       = case when exists(SELECT 1 FROM sysobjects where xtype='PK' and parent_obj=a.id and name in (
                      SELECT name FROM sysindexes WHERE indid in( SELECT indid FROM sysindexkeys WHERE id = a.id AND colid=a.colid))) then '√' else '' end,
     类型       = b.name,
     占用字节数 = a.length,
     长度       = COLUMNPROPERTY(a.id,a.name,'PRECISION'),
     小数位数   = isnull(COLUMNPROPERTY(a.id,a.name,'Scale'),0),
     允许空     = case when a.isnullable=1 then '√'else '' end,
     默认值     = isnull(e.text,''),
     字段说明   = isnull(g.[value],'')
 FROM 
     syscolumns a
 left join 
     systypes b 
 on 
     a.xusertype=b.xusertype
 inner join 
     sysobjects d 
 on 
     a.id=d.id  and d.xtype='U' and  d.name<>'dtproperties'
 left join 
     syscomments e 
 on 
     a.cdefault=e.id
 left join 
 sys.extended_properties   g 
 on 
     a.id=G.major_id and a.colid=g.minor_id  
 left join
 sys.extended_properties f
 on 
     d.id=f.major_id and f.minor_id=0
 where 
     d.name='GYUserConfig'    --如果只查询指定表,加上此where条件，tablename是要查询的表名；去除where条件查询所有的表信息
 order by 
     a.id,a.colorder