注：此操作在master数据库上执行
/*1.--得到数据库的文件目录 @dbname 指定要取得目录的数据库名 如果指定的数据不存在,返回安装SQL时设置的默认数据目录 如果指定NULL,则返回默认的SQL备份目录名 */ /*--调用示例 select 数据库文件目录=dbo.f_getdbpath('tempdb') ,[默认SQL SERVER数据目录]=dbo.f_getdbpath('') ,[默认SQL SERVER备份目录]=dbo.f_getdbpath(null) --*/ if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[f_getdbpath]') and xtype in (N'FN', N'IF', N'TF')) drop function [dbo].[f_getdbpath] GO create function f_getdbpath(@dbname sysname) returns nvarchar(260) as begin declare @re nvarchar(260) if @dbname is null or db_id(@dbname) is null select @re=rtrim(reverse(filename)) from master..sysdatabases where name='master' else select @re=rtrim(reverse(filename)) from master..sysdatabases where name=@dbname if @dbname is null set @re=reverse(substring(@re,charindex('\',@re)+5,260))+'BACKUP' else set @re=reverse(substring(@re,charindex('\',@re),260)) return(@re) end go /*2.--恢复数据库 */ /*--调用示例 --完整恢复数据库 exec p_RestoreDb @bkfile='c:\db_20031015_db.bak',@dbname='db' --差异备份恢复 exec p_RestoreDb @bkfile='c:\db_20031015_db.bak',@dbname='db',@retype='DBNOR' exec p_backupdb @bkfile='c:\db_20031015_df.bak',@dbname='db',@retype='DF' --日志备份恢复 exec p_RestoreDb @bkfile='c:\db_20031015_db.bak',@dbname='db',@retype='DBNOR' exec p_backupdb @bkfile='c:\db_20031015_log.bak',@dbname='db',@retype='LOG' --*/ if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[p_RestoreDb]') and OBJECTPROPERTY(id, N'IsProcedure') = 1) drop procedure [dbo].[p_RestoreDb] GO create proc p_RestoreDb @bkfile nvarchar(1000), --定义要恢复的备份文件名 @dbname sysname='', --定义恢复后的数据库名,默认为备份的文件名 @dbpath nvarchar(260)='', --恢复后的数据库存放目录,不指定则为SQL的默认数据目录 @retype nvarchar(10)='DB', --恢复类型:'DB'完事恢复数据库,'DBNOR' 为差异恢复,日志恢复进行完整恢复,'DF' 差异备份的恢复,'LOG' 日志恢复 @filenumber int=1, --恢复的文件号 @overexist bit=1, --是否覆盖已经存在的数据库,仅@retype为 @killuser bit=1 --是否关闭用户使用进程,仅@overexist=1时有效 as declare @sql varchar(8000) --得到恢复后的数据库名 if isnull(@dbname,'')='' select @sql=reverse(@bkfile) ,@sql=case when charindex('.',@sql)=0 then @sql else substring(@sql,charindex('.',@sql)+1,1000) end ,@sql=case when charindex('\',@sql)=0 then @sql else left(@sql,charindex('\',@sql)-1) end ,@dbname=reverse(@sql) --得到恢复后的数据库存放目录 if isnull(@dbpath,'')='' set @dbpath=dbo.f_getdbpath('') --生成数据库恢复语句 set @sql='restore '+case @retype when 'LOG' then 'log ' else 'database ' end+@dbname +' from disk='''+@bkfile+'''' +' with file='+cast(@filenumber as varchar) +case when @overexist=1 and @retype in('DB','DBNOR') then ',replace' else '' end +case @retype when 'DBNOR' then ',NORECOVERY' else ',RECOVERY' end print @sql --添加移动逻辑文件的处理 if @retype='DB' or @retype='DBNOR' begin --从备份文件中获取逻辑文件名 declare @lfn nvarchar(128),@tp char(1),@i int --创建临时表,保存获取的信息 create table #tb(ln nvarchar(128),pn nvarchar(260),tp char(1),fgn nvarchar(128),sz numeric(20,0),Msz numeric(20,0),fileid int,createlsn int ,droplsn int,uniqueid varchar(50),rolsn int,rwlsn int,bsib numeric(20,0),sbs numeric(20,0),fgid int, lgguid varchar(50),dblsn int,dbguid varchar(50),isreadonly int,ispresent int, tdet varchar(50)) --从备份文件中获取信息 insert into #tb exec('restore filelistonly from disk='''+@bkfile+'''') declare #f cursor for select ln,tp from #tb open #f fetch next from #f into @lfn,@tp set @i=0 while @@fetch_status=0 begin select @sql=@sql+',move '''+@lfn+''' to '''+@dbpath+@dbname+cast(@i as varchar) +case @tp when 'D' then '.mdf''' else '.ldf''' end ,@i=@i+1 fetch next from #f into @lfn,@tp end close #f deallocate #f end --关闭用户进程处理 if @overexist=1 and @killuser=1 begin declare @spid varchar(20) declare #spid cursor for select spid=cast(spid as varchar(20)) from master..sysprocesses where dbid=db_id(@dbname) open #spid fetch next from #spid into @spid while @@fetch_status=0 begin exec('kill '+@spid) fetch next from #spid into @spid end close #spid deallocate #spid end --恢复数据库 exec(@sql) go