如何在MySQL中创建一个时间点架构 [英] How to create a point in time architecture in MySQL

问题描述

我阅读了此文章为您的数据库构建一个时间点架构。它看起来像一个优雅的解决方案，但文章已经从一段时间以前（2007）。我在想：
1.还有其他的方法来解决吗？
2.这个和其他方法的亲和关系是什么？
3.是否有可用于这些方法的mysql实现，我可以重复使用？

I read this article on building a point in time architecture for your database. It looks to me as an elegant solution, but the article is allready from some time ago (2007). I was wondering: 1. Are there any other methods to solve this? 2. What are the pro's and con's of this and other methods? 3. Is there a mysql implementation available for these methods that I can re-use?

推荐答案

该文章，但它看起来像作者重新创造了双向数据库轮。我没有信心他做得很好，但我没有仔细阅读。

I just skimmed the article, but it looks like the author's reinventing the bi-temporal database wheel. I'm not confident he did a good job of it, but I didn't read it closely.

在你深入之前，花点时间去看Richard Snodgrass的旧书在SQL中开发面向时间的数据库应用程序。它可以从他的网页获得PDF。

Before you get too deep into this, take some time to skim Richard Snodgrass's old book Developing Time-Oriented Database Applications in SQL. It's available as a PDF from his web page.

我认为MySQL缺乏对CHECK约束的支持和GROUP BY的独特实现，将使他的方法难以实现。如果您有自由选择，PostgreSQL可能是一个更好的平台。

I think MySQL's lack of support for CHECK constraints and peculiar implementation of GROUP BY will make his approach hard to implement. If you have freedom of choice, PostgreSQL might be a better platform for this.

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