SQL Server Express 数据库自动部署问题及解决
这几天做了一个程序，VS 2005 SQL Server Express，仔细查阅文档，发现 SQL Server Express 支持 XCOPY 部署方式，也就是说，只要目标计算机有了 SQL Server Express，那么只需要把数据库拷贝过去，可以在程序的同一个目录中，然后在连接字符串中配置 AttachDBFileName 参数即可。数据库会自动挂接到 SQL Server Express 中，运行完后自动 Deattch。感觉不错，照猫画虎，结果出现了一个错误：“数据库已被压缩，无法建立，需要解压缩”。晕死，什么时候压缩了？莫非是 Shinrk 的问题？搞了 n 个小时，无解，睡觉。
次日再战，查阅资料无解，查阅 Internet 无解，想放弃，又舍不得。无意中发现，在管理界面中 Attach 数据库居然也是这个错误，而在原先目录中的数据库居然没问题。把数据库拷贝到程序目录（在 D: 盘，SQL Server Express 安装在 C: 盘）就会出错。不会是这个问题吧？
将程序目录移动到 C 盘，居然一切正常，然后彻底晕死。难道自动挂接数据库必须在 C 盘？？？
另，如果将数据库文件设置为只读，则无论在哪个盘都可挂接，只是成为只读数据库。
虽说解决了问题，可是不懂原理，是 Bug，还是我的系统问题？
其实，Sybase 的 SQL Anywhere 真的不错，在启动数据库的时候才启动数据库管理系统，系统运行结束，数据库管理系统自动结束，如果 SQL Server Express 也支持这个功能就好了，我可不喜欢不用数据库的时候还有一个 SQL Server 服务在运行。Access 连存储过程都不支持，微软，想说爱你并不容易。
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