# Creating new version of migrations

**URL:** <https://www.ruby-forum.com/t/creating-new-version-of-migrations/153025>\
**Category:** Rails\
**Created:** [November 11, 2008, 9:22am UTC](https://www.ruby-forum.com/t/creating-new-version-of-migrations/153025 "2008-11-11T09:22:56Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![vapor](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/v/5e9695/32.png) [@vapor](https://www.ruby-forum.com/u/vapor)\
**Post date:** [November 11, 2008, 9:22am UTC](https://www.ruby-forum.com/t/creating-new-version-of-migrations/153025/1 "2008-11-11T09:22:56Z")

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I have a migration file like \_create\_posts.rb .

Now I want [anotherdatetime]\_create\_posts.rb with some changes different  
from older migration that I can run with … rake db:migrate  
VERSION=[anotherdatetime].

How can I create [anotherdatetime]\_create\_posts.rb, which is basically a  
new version?

---

<div class="post-metadata">

**Author:** ![vapor](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/v/5e9695/32.png) [@vapor](https://www.ruby-forum.com/u/vapor)\
**Post date:** [November 11, 2008, 8:12pm UTC](https://www.ruby-forum.com/t/creating-new-version-of-migrations/153025/2 "2008-11-11T20:12:58Z")

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you probably don’t want to _create_ the posts table again, you likely  
want to change the existing schema. just make a new migration like  
so:

"ruby script/generate migration ‘do\_something\_else\_to\_posts’ "

and then use the add\_column, remove\_column, rename\_column, etc…  
methods for migrations.

On Nov 11, 3:22 am, “Vapor …” [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)