“简短版本:将您的生产数据库转储到git存储库中，以实现即时备份解决方案。”

RedGate软件提供了一些很棒的工具，可以帮助你对数据库进行版本化。确保让开发者为开发工作构建自己的独立本地数据库，而不是依赖于“开发服务器”，因为“开发服务器”有时可能停机，有时也可能不停机。

My team versions our database schema as C# classes with the rest of our code. We have a homegrown C# program (<500 lines of code) that reflects the classes and creates SQL commands to build, drop and update the database. After creating the database we run sqlmetal to generate a linq mapping, which is then compiled in another project that is used to generate test data. The whole things works really well because data access is checked at compile time. We like it because the schema is stored in a .cs file which is easy to track compare in trac/svn.

A big problem, often overlooked, is that for larger web based systems, it is required to have a transitional period or bucket testing approach to making new releases. This makes it essential to have both rollback and a mechanism for supporting both the old and new schema in the same DB. This requires a scaffolding approach (made populist by the Agile DB folks). In this scenario, lack of process in DB source control can be a total disaster. You need old schema scripts, new schema scripts and a set of intermediate scripts, as well as a tidy up, once the system is fully on the new version (or rolled back).

需要的不是从头开始重新创建模式的脚本，而是一种基于状态的方法，在这种方法中，您只需要脚本将DB从一个版本移动到另一个版本，向前或向后移动到所需的状态。您的DB变成了一系列状态脚本，可以轻松地对其进行源代码控制，并与源代码的其余部分一起标记。

我们在源代码控制下有创建/修改脚本。至于数据库本身，当您有数百个表并且每分钟处理大量数据时，对所有数据库进行版本化将是CPU和HDD的杀手。这就是为什么在我看来，备份仍然是控制数据的最佳方式。

我有一切必要的重新创建我的数据库从裸露的金属，减去数据本身。我相信有很多方法可以做到这一点，但我所有的脚本等都存储在subversion中，我们可以通过将所有这些从subversion中取出并运行安装程序来重建DB结构等。