从 .bak 文件恢复数据

Question

我可以使用有关如何恢复非标准 SQL 服务器 .bak 备份文件的提示。

背景：我们有一个正常运行的发票程序，其中包含来自一家已停业提供商的超过 10 年的数据。在过去的通信中，提供商告诉我们该产品是在 SQL 服务器上构建的，但从未告诉我们是什么版本。

我们的目标是从程序中导出数据，重新格式化，然后将其加载到另一个会计系统中。该程序本身没有一套完整的导出工具，因此我们希望从它创建的 .bak 文件中访问数据，以获取所有数据以导入到新系统中。

我尝试了以下 SQL 服务器版本但没有成功：

2000
2005
2008
2008 R2
2012
2014
2016
2017

我也试过用...恢复...

Microsoft SQL Server Management Studio 18 但没有列出要恢复的备份集
SysTools SQL备份恢复但它returns"Could not identify SQL Server version for the selected .bak file."
SQL Linux 机器上的 Server 2017 并获得以下输出...

1> restore database newhouse from disk='/home/me/test.bak'
2> go
Msg 3241, Level 16, State 1, Server 8350, Line 1
The media family on device '/home/me/test.bak' is incorrectly formed. SQL Server cannot process this media family.
Msg 3013, Level 16, State 1, Server 8350, Line 1
RESTORE DATABASE is terminating abnormally.
1> restore verifyonly from disk='/home/me/test.bak'
2> go
Msg 3241, Level 16, State 1, Server 8350, Line 1
The media family on device '/home/me/test.bak' is incorrectly formed. SQL Server cannot process this media family.
Msg 3013, Level 16, State 1, Server 8350, Line 1
VERIFY DATABASE is terminating abnormally.
1> restore headeronly from disk='/home/me/test.bak' with nounload
2> go
Msg 3241, Level 16, State 1, Server 8350, Line 1
The media family on device '/home/me/test.bak' is incorrectly formed. SQL Server cannot process this media family.
Msg 3013, Level 16, State 1, Server 8350, Line 1
RESTORE HEADERONLY is terminating abnormally.
1> restore headeronly from disk='/home/me/test.bak' 
2> go
Msg 3241, Level 16, State 1, Server 8350, Line 1
The media family on device '/home/me/test.bak' is incorrectly formed. SQL Server cannot process this media family.
Msg 3013, Level 16, State 1, Server 8350, Line 1

一个 .bak 包含虚构数据的文件 is available here。

更新#1 - 回复@DavidJamesSmith

这是我得到的...

1> restore headeronly 
2> from disk = N'/home/me/test.bak' 
3> go 
Msg 3241, Level 16, State 1, Server 8350, Line 1 
The media family on device '/home/me/test.bak' is incorrectly formed. SQL Server cannot process this media family. 
Msg 3013, Level 16, State 1, Server 8350, Line 1 
RESTORE HEADERONLY is terminating abnormally.

更新#2 - 再次回复@DavidJamesSmith

据我所知，文件是未加密的。我可以使用 gHex（GNOME 中的十六进制编辑器）打开文件并读取数据。

关于文件损坏的问题，我不相信。无论 .bak 文件是在创建 .bak 的机器上还是在我将文件传输到的另一台机器上，我都会在该程序创建的任何 .bak 文件上遇到相同的错误。

如果文件已损坏，则程序本身正在导出损坏的版本。

这是我在具有帐户软件本身的机器上的新导出运行中得到的。

1> use newhouse
2> restore database newhouserecovery from
3> disk = N'C:\Program Files\Microsoft SQL Server\MSSQL14.SQLEXPRESS\MSSQL\Backup\test.bak'
4> with
5> file = 1,
6> move N'test' to N'C:\Users\me\Backup\test.mdf',
7> move N'test_log' to N'C:\Users\me\Backup\test_log.ldf',
8> nounload,
9> stats = 5
10> go
Changed database context to 'newhouse'.
Msg 3241, Level 16, State 1, Server DESKTO\SQLEXPRESS, Line 2
The media family on device 'C:\Program Files\Microsoft SQL Server\MSSQL14.SQLEXPRESS\MSSQL\Backup\test.bak' is incorrectly formed. SQL Server cannot process this media family.
Msg 3013, Level 16, State 1, Server DESKTO\SQLEXPRESS, Line 2
RESTORE DATABASE is terminating abnormally.

Answer 1

帐户软件使用的是 Microsoft SQL Server Compact 3.5 Service Pack 2。

感谢大家的帮助，尤其是@lptr 给我的提示，让我走上了正确的轨道。

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