附加数据库时：数据库的版本为661，无法打开。此服务器支持655 版及更低版本。不支持降级路径。

出现这个问题是因为要附加的数据库是sql2008R2生成的，sql2008R2的版本号是661，而本地的数据库可能是sql2008（版本号655）或者是比sql2008R2底的版本。解决办法就是下载一个sql2008R2的安装包升级一下数据库。地址如下：

1. SQL Server 2008 R2 Developer (x86, x64, ia64) – DVD (Chinese-Simplified)
 
File Name: cn_sql_server_2008_r2_developer_x86_x64_ia64_dvd_522724.iso
 Date Published (UTC): 2010-5-3 9:45:45        ISO/CRC: ADDBE07E
 SHA1: AAE0E2D4E41AB7591634D53C7BC76A112F31B617
 File Size: 4.34 GB
 
ed2k://%7Cfile%7Ccn_sql_server_2008_r2_developer_x86_x64_ia64_dvd_522724.iso%7C4662884352%7CE436F05BCB0165FDF7E5E61862AB6BE1%7C/
 
2. SQL Server 2008 R2 Enterprise (x86, x64, ia64) – DVD (Chinese-Simplified)
 
File Name: cn_sql_server_2008_r2_enterprise_x86_x64_ia64_dvd_522233.iso
 Date Published (UTC): 2010-5-3 9:45:05        ISO/CRC: 55AC3C56
 SHA1: 0EEFF017B21635DF33F33C47E31E911CB23390F7
 File Size: 4.34 GB
 
ed2k://%7Cfile%7Ccn_sql_server_2008_r2_enterprise_x86_x64_ia64_dvd_522233.iso%7C4662884352%7C1DB025218B01B48C6B76D6D88630F541%7C/
 
3. SQL Server 2008 R2 Standard (x86, x64, ia64) – DVD (Chinese-Simplified)
 
File Name: cn_sql_server_2008_r2_standard_x86_x64_ia64_dvd_522239.iso
 Date Published (UTC): 2010-5-3 9:45:18        ISO/CRC: F6137D11
 SHA1: B5A534094780CD915458344BD097F8203FD7C7CC
 File Size: 4.34 GB
 
ed2k://%7Cfile%7Ccn_sql_server_2008_r2_standard_x86_x64_ia64_dvd_522239.iso%7C4662884352%7C18EB3AE3828811617488F2CE8E5B8420%7C/