SQLServer 데이터베이스 로그의 저장 프로세스 압축

use master  --  ,        master    
go

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[p_compdb]') and OBJECTPROPERTY(id, N'IsProcedure') = 1)
drop procedure [dbo].[p_compdb]
GO

create proc p_compdb
@dbname sysname,   --        
@bkdatabase bit=1,   --          ,        ,              
@bkfname nvarchar(260)='' --      ,     ,           ,      :    +    
as
--1.    
exec('DUMP TRANSACTION ['+@dbname+'] WITH  NO_LOG')

--2.      ：
exec('BACKUP LOG ['+@dbname+'] WITH NO_LOG')

--3.       (     ,          
exec('DBCC SHRINKDATABASE(['+@dbname+'])')

--4.      
exec('EXEC sp_dboption '''+@dbname+''',''autoshrink'',''TRUE''')

--          ,               
--5.     
if @bkdatabase=1
begin
 if isnull(@bkfname,'')='' 
  set @bkfname=@dbname+'_'+convert(varchar,getdate(),112)
   +replace(convert(varchar,getdate(),108),':','')
 select     ='      SQL       ,     :'+@bkfname
 exec('backup database ['+@dbname+'] to disk='''+@bkfname+'''')
end

--      
create table #t(fname nvarchar(260),type int)
exec('insert into #t select filename,type=status&0x40 from ['+@dbname+']..sysfiles')
exec('sp_detach_db '''+@dbname+'''')

--      
declare @fname nvarchar(260),@s varchar(8000)
declare tb cursor local for select fname from #t where type=64
open tb 
fetch next from tb into @fname
while @@fetch_status=0
begin
 set @s='del "'+rtrim(@fname)+'"'
 exec master..xp_cmdshell @s,no_output
 fetch next from tb into @fname
end
close tb
deallocate tb

--     
set @s=''
declare tb cursor local for select fname from #t where type=0
open tb 
fetch next from tb into @fname
while @@fetch_status=0
begin
 set @s=@s+','''+rtrim(@fname)+''''
 fetch next from tb into @fname
end
close tb
deallocate tb
exec('sp_attach_single_file_db '''+@dbname+''''+@s)
go

/*--    
 exec p_compdb 'test'
--*/