Sql Server添加mdf和ldf到数据库

以示例数据库NorthWind为例 在sql窗口中执行一下语句

EXEC sp_attach_db @dbname = 'NorthWind',
@filename1 = 'C:\Users\hupengyang\Desktop\northwnd\northwnd.mdf', --mdf文件路径  
@filename2 = 'C:\Users\hupengyang\Desktop\northwnd\northwnd.ldf'    --ldf文件路径