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SQL Server 数据库空间使用情况

 

SQL Server 数据库空间使用情况 _ JavaClub全栈架构师技术笔记

 
GO
/****** Object:  StoredProcedure [dbo].[SpaceUsed]    Script Date: 2017-12-01 11:15:11 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
create procedure [dbo].[sqlTool_SpaceUsed] 

as 

begin 

declare @id int -- The object id of @objname. 

declare @type character(2) -- The object type. 

declare @pages int -- Working variable for size calc. 

declare @dbname sysname 

declare @dbsize dec(15,0) 

declare @logsize dec(15) 

declare @bytesperpage dec(15,0) 

declare @pagesperMB dec(15,0) 

declare @objname nvarchar(776) -- The object we want size on. 

declare @updateusage varchar(5) -- Param. for specifying that 

create table #temp1 

( 

表名 varchar(200) null, 

行数 char(11) null, 

保留空间 varchar(15) null, 

数据使用空间 varchar(15) null, 

索引使用空间 varchar(15) null, 

未用空间 varchar(15) null 

) 

--select @objname='N_dep' -- usage info. should be updated. 

select @updateusage='false' 

/*Create temp tables before any DML to ensure dynamic 

** We need to create a temp table to do the calculation. 

** reserved: sum(reserved) where indid in (0, 1, 255) 

** data: sum(dpages) where indid < 2 + sum(used) where indid = 255 (text) 

** indexp: sum(used) where indid in (0, 1, 255) - data 

** unused: sum(reserved) - sum(used) where indid in (0, 1, 255) 

*/ 

declare cur_table cursor for 

select name from sysobjects where type='u' 

Open cur_table 

fetch next from cur_table into @objname 

While @@FETCH_STATUS=0 

begin 

create table #spt_space 

( 

rows int null, 

reserved dec(15) null, 

data dec(15) null, 

indexp dec(15) null, 

unused dec(15) null 

) 

/* 

** Check to see if user wants usages updated. 

*/ 

if @updateusage is not null 

begin 

select @updateusage=lower(@updateusage) 

if @updateusage not in ('true','false') 

begin 

raiserror(15143,-1,-1,@updateusage) 

return(1) 

end 

end 

/* 

** Check to see that the objname is local. 

*/ 

if @objname IS NOT NULL 

begin 

select @dbname = parsename(@objname, 3) 

if @dbname is not null and @dbname <> db_name() 

begin 

raiserror(15250,-1,-1) 

return (1) 

end 

if @dbname is null 

select @dbname = db_name() 

/* 

** Try to find the object. 

*/ 

select @id = null 

select @id = id, @type = xtype 

from sysobjects 

where id = object_id(@objname) 

/* 

** Does the object exist? 

*/ 

if @id is null 

begin 

raiserror(15009,-1,-1,@objname,@dbname) 

return (1) 

end 

if not exists (select * from sysindexes 

where @id = id and indid < 2) 

if @type in ('P ','D ','R ','TR','C ','RF') --data stored in sysprocedures 

begin 

raiserror(15234,-1,-1) 

return (1) 

end 

else if @type = 'V ' -- View => no physical data storage. 

begin 

raiserror(15235,-1,-1) 

return (1) 

end 

else if @type in ('PK','UQ') -- no physical data storage. --?!?! too many similar messages 

begin 

raiserror(15064,-1,-1) 

return (1) 

end 

else if @type = 'F ' -- FK => no physical data storage. 

begin 

raiserror(15275,-1,-1) 

return (1) 

end 

end 

/* 

** Update usages if user specified to do so. 

*/ 

if @updateusage = 'true' 

begin 

if @objname is null 

dbcc updateusage(0) with no_infomsgs 

else 

dbcc updateusage(0,@objname) with no_infomsgs 

print ' ' 

end 

set nocount on 

/* 

** If @id is null, then we want summary data. 

*/ 

/* Space used calculated in the following way 

** @dbsize = Pages used 

** @bytesperpage = d.low (where d = master.dbo.spt_values) is 

** the # of bytes per page when d.type = 'E' and 

** d.number = 1. 

** Size = @dbsize * d.low / (1048576 (OR 1 MB)) 

*/ 

if @id is null 

begin 

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

from dbo.sysfiles 

where (status & 64 = 0) 

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

from dbo.sysfiles 

where (status & 64 <> 0) 

select @bytesperpage = low 

from master.dbo.spt_values 

where number = 1 

and type = 'E' 

select @pagesperMB = 1048576 / @bytesperpage 

select database_name = db_name(), 

database_size = 

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

'unallocated space' = 

ltrim(str((@dbsize - 

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

from sysindexes 

where indid in (0, 1, 255) 

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

print ' ' 

/* 

** Now calculate the summary data. 

** reserved: sum(reserved) where indid in (0, 1, 255) 

*/ 

insert into #spt_space (reserved) 

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

from sysindexes 

where indid in (0, 1, 255) 

/* 

** data: sum(dpages) where indid < 2 

** + sum(used) where indid = 255 (text) 

*/ 

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 

update #spt_space 

set data = @pages 

/* index: sum(used) where indid in (0, 1, 255) - data */ 

update #spt_space 

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

from sysindexes 

where indid in (0, 1, 255)) 

- data 

/* unused: sum(reserved) - sum(used) where indid in (0, 1, 255) */ 

update #spt_space 

set unused = reserved 

- (select sum(convert(dec(15),used)) 

from sysindexes 

where indid in (0, 1, 255)) 

select 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' 

end 

/* 

** We want a particular object. 

*/ 

else 

begin 

/* 

** Now calculate the summary data. 

** reserved: sum(reserved) where indid in (0, 1, 255) 

*/ 

insert into #spt_space (reserved) 

select sum(reserved) 

from sysindexes 

where indid in (0, 1, 255) 

and id = @id 

/* 

** data: sum(dpages) where indid < 2 

** + sum(used) where indid = 255 (text) 

*/ 

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 

/* 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 

/* 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) 

update #spt_space 

set rows = i.rows 

from sysindexes i 

where i.indid < 2 

and i.id = @id 

insert into #temp1 

select name = 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' 

Drop table #spt_space 

end 

fetch next from cur_table into @objname 

end 

Close cur_table 

DEALLOCATE cur_table 

Select * from #temp1 order by len(数据使用空间) desc,数据使用空间 desc,保留空间 desc 

Drop table #temp1 

return (0) 

end 

 

作者:max66
来源链接:https://www.cnblogs.com/hghg/p/7941086.html

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