sqlserver数据库附加分离备份还原命令

 --获取所有数据库的名称
 select [name] from master.dbo.sysdatabases where [name]='master'

 --判断数据库是否存在
 if exists(select [name] from master.dbo.sysdatabases where [name]='master')

     begin
      select 1;
     end
  else
     begin
     select 0;
     end

 --分离数据库-----要先获取所有的数据库
 if exists(select [name] from master.dbo.sysdatabases where [name]='zuobiao')

     begin
     exec sp_detach_db 'zuobiao'
      select 1;
     end
  else
     begin
     select 0;
     end

 --附加数据库-------要判断要附加的数据库是否存在
 if exists(select [name] from master.dbo.sysdatabases where [name]='zuobiao')

     begin
      select 0;
     end
  else
     begin
     exec sp_attach_db @dbname='zuobiao'
                       ,@filename1='D:\Program Files\SQL Server\MSSQL.1\MSSQL\Data\zuobiao.mdf'
                       ,@filename2='D:\Program Files\SQL Server\MSSQL.1\MSSQL\Data\zuobiao_log.LDF'
     select 1;
     end

 ---备份数据库
 use master
 go
 backup database demo to disk='d:\database\demo.bak'

 --还原数据库
 use master
 go
 restore database demo
 from disk='d:\database\demo.bak'
 with replace