sql server的数据库个数、表个数及表的数据量统计

--由于今天要监控数据，急需统计实例中1有多少库2库里有多少表3每个表有多少数据

--将写好的代码贴出来，用到如下的：

--sysobjects：在数据库每个对象（约束、默认值、日志、规则、存储过程）占一行。

--sysindexes：数据库中的每个索引和表在表中各占一行。

--syscolumns：每个表和视图中的每列在表中占一行，存储过程中每个参数在表中占一行。

select * from sysobjects

select * from sysindexes

select * from syscolumns

--1-----------统计有多少数据库，查出库里面多少表---------------

declare @str varchar(8000)

set @str=''  www.2cto.com

select @str=@str+

'union all select '+quotename(name,'''')+' ,COUNT(*)

from '+name+'.dbo.sysobjects where xtype=''U'''

from (select  name from master.dbo.sysdatabases) a

set @str =' select ''0数据库总数'' as 库名,(select  count(*) from master.dbo.sysdatabases)

as 表的个数 '+ @str+' order by 库名 '

print @str

exec(@str)

---2----------统计当前数据库的表的个数和表的数据记录数----------

set nocount on --不记录放回多少行受影响，这样速度快很多，是一种优化

if object_id(N'tempdb.db.#temp') is not null

drop table #temp   www.2cto.com

create table #temp (name sysname,count numeric(18))

insert into #temp

select o.name,i.rows

from sysobjects o,sysindexes i

where o.id=i.id and o.Xtype='U' and i.indid<2

select count(count) 当前库总表数,sum(count) 总记录数 from #temp

select * from #temp

set nocount off --打开返回计数

----3--------------比较两个数据库的表个数和数据量，两个库的数据结构相同-------

set nocount on

if object_id(N'tempdb.db.#temp1') is not null

drop table #temp1

create table #temp1 (name sysname,count numeric(18))

insert into #temp1

select o.name,i.rows

from Ljfcdata30.dbo.sysobjects o,Ljfcdata30.dbo.sysindexes i

where o.id=i.id and o.Xtype='U' and i.indid<2

--查询2

if object_id(N'tempdb.db.#temp2') is not null

drop table #temp2

create table #temp2 (name sysname,count numeric(18))

insert into #temp2

select o.name,i.rows

from Ljfcdata31.dbo.sysobjects o,Ljfcdata31.dbo.sysindexes i

where o.id=i.id and o.Xtype='U' and i.indid<2

select '30号' as 日期 ,count(count) 总表数,sum(count) 总记录数 from #temp1

union all select '31号' ,count(count) 总表数,sum(count) 总记录数 from #temp2

select i.name as 表名, i.count as '30号',j.count as '31号'

from #temp1 i Left join #temp2 j on i.name = j.name

order by i.name

set nocount off

go

---3 查询数据库的所有表的所有列------------------------------------------------------------------

---3 查询数据库的所有表的所有列------------------------------------------------------------------

declare @s varchar(8000)

set @s=''  www.2cto.com

select @s=@s+

( select 'select '''+name+''' as dbname,

a.name collate Chinese_PRC_CI_AS as tablename,

b.name collate Chinese_PRC_CI_AS as colname,

c.name collate Chinese_PRC_CI_AS as coltype,

c.length as coltype from ['+

name+']..sysobjects a

inner join ['+

name+']..syscolumns b on a.id=b.id

inner join ['+

name+']..systypes c on c.xtype=b.xtype where a.type=''U'''

as sql from master..sysdatabases as s where s.name=d.name)+' union '

from master..sysdatabases as d

set @s=left(@s,len(@s)-7) + ' order by dbname'

print @s

execute(@s)

--以上的脚本在sql2008R2中通过