blocks|key|1858064|text|我没有亲自做过，但应该可以使用ActiveRecord::Migration而不使用任何其他Rails内容。正确设置加载路径将是困难的部分，但实际上您所需要的只是rake任务和db/migrate目录，以及它们所依赖的任何Rails+gem，可能是activerecord、actviesupport，也可能是像railties这样的其他几个。我会试一试，看看缺少了什么类，然后把它们加进去。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1858065|在以前的一家公司，我们构建了一个工具，它基本上完成了ActiveRecord::Migration所做的事情，只是它是用Java作为Maven插件编写的。它所做的一切就是汇编SQL脚本的文本blob。它只需要聪明地处理文件名的顺序，并知道如何更新版本化表。|1858066|entityMap^0|29|4|2G|A|3G|C|3T|D|4C|8|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]|$9|O|A|P|B|C]|$9|Q|A|R|B|C]|$9|S|A|T|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|U|8|@]|D|@]|E|$]]|$1|H|3|-4|5|6|7|V|8|@]|D|@]|E|$]]]|I|$]]

I haven't personally done it, but it should be possible to use ActiveRecord::Migration without any of the other Rails stuff. Setting up the load path correctly would be the hard part, but really all you need is the <code>rake</code> tasks and the <code>db/migrate</code> directory plus whatever Rails gems they depend on, probably <code>activerecord</code>, <code>actviesupport</code> and maybe a couple others like <code>railties</code>. I'd try it and just see what classes are missing and add those in.

At a previous company we built a tool that did essentially what ActiveRecord::Migration does, except it was written in Java as a Maven plugin. All it did was assemble text blobs of SQL scripts. It just needs to be smart about the filenames going in order and know how to update a versioning table.

blocks|key|1858078|text|还有一个名为Java+Database+Migrations的项目。要获得代码，请查看Google+Code+page+for+the+project。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1858079|entityMap|0|LINK|mutability|MUTABLE|url|http://blog.carbonfive.com/2008/09/java/java-database-migrations|1|http://code.google.com/p/c5-db-migration/^0|6|O|0|17|W|1|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@$A|O|B|P|1|Q]|$A|R|B|S|1|T]]|C|$]]|$1|D|3|-4|5|6|7|U|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]|L|$5|G|H|I|C|$J|M]]]]

There's also a project called <a href="http://blog.carbonfive.com/2008/09/java/java-database-migrations" rel="nofollow noreferrer">Java Database Migrations</a>. To get the code check out the <a href="http://code.google.com/p/c5-db-migration/" rel="nofollow noreferrer">Google Code page for the project</a>.

blocks|key|2071988|text|我知道这个话题真的很老了，但我还是会为未来的谷歌人出一份力。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2071989|如果你不想走ActiveRecord::Migrate路线，我真的很喜欢使用Python语言的SQLAlchemy和SQLAlchemy-Migrate+来管理我需要进行版本控制的数据库。|offset|length|2071990|entityMap|0|LINK|mutability|MUTABLE|url|http://code.google.com/p/sqlalchemy-migrate/^0|0|1M|J|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

I see this topic is really old, but I'll chip in for future googlers.

I really like using Python's SQLAlchemy and <a href="http://code.google.com/p/sqlalchemy-migrate/" rel="nofollow noreferrer">SQLAlchemy-Migrate </a> to manage databases that I need to version control, if you don't want to go the ActiveRecord::Migrate route.

blocks|key|2071995|text|此项目旨在允许在不安装Rails的情况下运行活动记录迁移：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2071996|https://github.com/bretweinraub/rails-free-DB-Migrate|offset|length|2071997|安装它(git克隆它)，并将其用作项目的基础。|2071998|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|1H|0|0|0^^$0|@$1|2|3|4|5|6|7|O|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|P|8|@]|9|@$D|Q|E|R|1|S]]|A|$]]|$1|F|3|G|5|6|7|T|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|U|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|C]]]]

This project is designed to allow active record migrations to be run without installing Rails:

<a href="https://github.com/bretweinraub/rails-free-DB-Migrate" rel="nofollow">https://github.com/bretweinraub/rails-free-DB-Migrate</a>

Install it (git clone it) and use it as a base for your project.

blocks|key|2072003|text|这是一个用Haskell编写的工具：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2072004|http://hackage.haskell.org/package/dbmigrations|offset|length|2072005|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|1B|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

Here is a tool to do this written in Haskell:

<a href="http://hackage.haskell.org/package/dbmigrations" rel="nofollow">http://hackage.haskell.org/package/dbmigrations</a>

Is there any easy to install/use (on unix) database migration tools like Rails Migrations? I really like the idea, but installing ruby/rails purely to manage my database migrations seems overkill.

Rails-like Database Migrations?

数据库

Python

Java

有没有像Rails迁移这样容易安装/使用(在unix上)的数据库迁移工具？我真的很喜欢这个想法，但安装ruby/rails纯粹是为了管理我的数据库迁移似乎有点过头了。

问像Rails一样的数据库迁移？
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