云上使用什么样的数据库,背后的概念是什么?
我正在阅读这篇文章。那个人提到“关系数据库不再是云中的常态。”他这话是什么意思?如果不使用关系型数据库我们要用什么样的数据库,背后的概念是什么?
I was reading this article . And the guy mentioned "Relational databases are no longer the norm in the cloud." What does he mean by that? If Relational databases are not used what kind of databases are we going to use and what is the concept behind?
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您的文章的链接丢失了。但是,我怀疑作者指的是各种形式的“NoSQL”数据库,例如 key -值存储、基于文档的数据库、基于对象的数据库以及各种其他技术。这种方法的主要优点是,并不总是需要 RDBMS 的完整关系功能,如果放弃它们,有时可以提高性能和可扩展性。
例如,Amazon 提供 Amazon Simple DB,它基本上是一个巨大的分布式字典,具有更好的查询语言。
我可以继续说下去,但我怀疑对 NoSQL 的一些搜索比我能写的任何内容都更有用。
The link to your article is missing. However, I suspect that the author is referring to various forms of "NoSQL" dbs, such as key-value stores, document-based databases, object-based databases, and various other technologies. The main advantage of this approach is that full relational capabilities of a RDBMS are not always needed, and if you discard them, you can sometimes improve performance and scalability.
For example, Amazon offers the Amazon Simple DB, which is basically a giant distributed dictionary with a nicer query language.
I could go on, but I suspect a few searches for NoSQL would be more useful than anything I could write.