尝试将mdf文件附加到localDb会引发错误,至少需要一个文件

Question

标题:Microsoft SQL Server Management Studio

服务器'(localdb)\ mssqllocaldb'附加数据库失败.(Microsoft.SqlServer.Smo)

附加信息:

数据库附加至少需要一个文件.(Microsoft.SqlServer.Smo)

我试图将此.mdf数据库文件附加到我的LocalDb实例.如果我也可以使用SQL Server也没关系.我有.ldf文件在同一目录中

Answer 1

为了完成起见 - 吉姆的评论解决了(一半)问题并让你前进.

问题的另一半" - 如果你最终想要重命名物理数据库文件怎么办？答案可在此CodeProject帖子中找到.

脚步:

1. ALTER DATABASE设置新的物理文件名(数据文件和日志文件)
   ^{在SQL Server重新启动或数据库脱机并重新联机之后才会生效}

   • ALTER DATABASE [CurrentName] MODIFY FILE (NAME = 'CurrentName', FILENAME = '<Full-Path-Required>\NewDbName.mdf');
   • ALTER DATABASE [CurrentName] MODIFY FILE (NAME = 'CurrentName_log', FILENAME = '<Full-Path-Required>\NewDbName_log.ldf');

2. ALTER DATABASE再次设置新的逻辑文件名(再次,数据和日志文件)
   ^立即生效

   • ALTER DATABASE [CurrentName] MODIFY FILE (NAME = 'CurrentName', NEWNAME = 'NewDbName');
   • ALTER DATABASE [CurrentName] MODIFY FILE (NAME = 'CurrentName_log', NEWNAME = 'NewDbName_log');

3. 脱机并重新联机或重新启动SQL Server

   • 使用SQL Server Management Studio:
     1. 右键单击重命名的数据库,然后单击Take Offline下方Tasks.
     2. 右键单击(脱机)数据库,然后单击Bring Online下方Tasks.
   • 使用T-SQL:
     1. ALTER DATABASE [CurrentName] SET OFFLINE WITH ROLLBACK IMMEDIATE; (将其设置为脱机并断开任何客户端)
     2. ALTER DATABASE [CurrentName] SET ONLINE;

完整代码:

-- Find "CurrentName" (without quotes) and replace with the current database name
-- Find "NewDbName" (without quotes) and replace with the new database name


USE [CurrentName];

-- Change physical file names:
ALTER DATABASE [CurrentName] MODIFY FILE (NAME = 'CurrentName', FILENAME = '<Full-Path-Required>\NewDbName.mdf');
ALTER DATABASE [CurrentName] MODIFY FILE (NAME = 'CurrentName_log', FILENAME = '<Full-Path-Required>\NewDbName_log.ldf');

-- Change logical names:
ALTER DATABASE [CurrentName] MODIFY FILE (NAME = 'CurrentName', NEWNAME = 'NewDbName');
ALTER DATABASE [CurrentName] MODIFY FILE (NAME = 'CurrentName_log', NEWNAME = 'NewDbName_log');

-- Take offline and back online
USE [master]
GO
ALTER DATABASE [CurrentName] SET OFFLINE WITH ROLLBACK IMMEDIATE;
-- Then navigate to <Full-Path-Required> and rename the files
ALTER DATABASE [CurrentName] SET ONLINE;