MSSQL备份与还原

1.备份

ALTER  procedure [dbo].[DB_backup] (@DB_Name nvarchar(40))

as
  declare @back_str nvarchar(150),@mysql nvarchar(600)

  set @back_str = case datepart(dw,getdate())
    when 1 then 'Z:\backup\sunday\'
    when 2 then 'Z:\backup\monday\'
    when 3 then 'Z:\backup\tuesday\'
    when 4 then 'Z:\backup\wednesday\'
    when 5 then 'Z:\backup\thursday\'
    when 6 then 'Z:\backup\friday\'
    when 7 then 'Z:\backup\saturday\'
    else 'Z:\backup\others\' end

--  set @back_str = @back_str + convert(nvarchar(12),getdate(),112) + '_'+ @DB_Name + '.bak'
  set @back_str = @back_str + 'uniohm_'+ @DB_Name + '.bak'

  set @mysql = 'backup database ' + @db_Name + ' to disk = ' + '''' + @back_str+ '''' + ' with init '

  execute(@mysql)

2.还原

ALTER  procedure [dbo].[sky_restoredatabase] @dbname nvarchar(50),@dirpath nvarchar(250)
--@dbname 數據庫名字,@dirpath 已備份出來的路徑加文件名
as
Declare @exists int
if not exists(select name from master..sysdatabases where name = @dbname)
begin
  Print 'Database '+@dbname+' not found,Enter valid Database Name'
  Return
end

Execute master..xp_fileexist @dirpath,@exists output
if (@exists = 0)
begin
  Print 'File '+@dirpath+' Does not Exist'
  print 'DataBase Cannot be restored,Enter the valid Backup File'
  return
end

Declare SysProc cursor for select spid from master..sysprocesses where
  dbid=(select dbid from master..sysdatabases where name = @dbname)
Declare @SysProcId smallint
Declare @killStatement char(30)
Open SysProc
while ( 0 = 0) begin
  Fetch Next From SysProc into @SysProcId
  if (@@Fetch_status <> 0)
     Break
  set @killStatement = 'Kill '+ Cast(@SysProcId as char(30))
  Exec(@killStatement)
end
Close SysProc
deallocate SysProc


execute('use master')
Execute('Restore database '+@dbname+' From disk='''+@dirpath+''' '+
  ' with FILE = 1,NOUNLOAD,STATS =10,RECOVERY,REPLACE')