我正在开发一个 RSS 阅读器应用程序。我需要找到一个后端数据库。我希望嵌入数据库，因为我不希望用户安装数据库服务器。

我知道 SQLite 是一个不错的选择，但我想知道是否还有其他 nosql 选择？

最佳答案

(我还没有 50 个代表点来评论和构建已接受的答案；否则我会的，抱歉!)

您可以将 MongoDB 嵌入到您的 OEM 解决方案中，但需要考虑两件事:

1. 它是用 C++ 编写的，因此如果您使用不同的语言进行编码，您可能需要编写一个单独启动数据库进程的包装器。

2. MongoDB 在 Gnu AGPL-3.0 下获得许可，这是一个复制左服务器许可。接受的答案和谷歌集团的报价都正确地表明这通常会迫使你也获得 AGPL 许可。但是，他们 MongoDb 表示，许可证的目的是允许对其代码的改进提交回来，并且您的产品将保持独立。这让我觉得正常的左副本规则不适用。

The goal of the server license is to require that enhancements to MongoDB be released to the community. Traditional GPL often does not achieve this anymore as a huge amount of software runs in the cloud. For example, Google has no obligation to release their improvements to the MySQL kernel – if they do they are being nice.

To make the above practical, we promise that your client application which uses the database is a separate work. To facilitate this, the mongodb.org supported drivers (the part you link with your application) are released under Apache license, which is copyleft free. Note: if you would like a signed letter asserting the above promise please request via email.

来源:http://www.mongodb.org/display/DOCS/Licensing

https://stackoverflow.com/questions/6115637/