# Sequel migrations

**URL:** <https://www.ruby-forum.com/t/sequel-migrations/184945>\
**Category:** Ruby\
**Created:** [March 10, 2010, 8:28pm UTC](https://www.ruby-forum.com/t/sequel-migrations/184945 "2010-03-10T20:28:22Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![polunochnik](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/65b543/32.png) [@polunochnik](https://www.ruby-forum.com/u/polunochnik)\
**Post date:** [March 10, 2010, 8:28pm UTC](https://www.ruby-forum.com/t/sequel-migrations/184945/1 "2010-03-10T20:28:22Z")

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Hi.

I’ve just started to use Sequel and discovered that they removed the  
migration mechanism in the last version of this ORM.

What happened with migrations in Sequel? They replaced them with a new  
technic of building a DB schema during a development process or they  
simply got rid of the migrations?

Any help and links are welcome.

Thanks.

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<div class="post-metadata">

**Author:** ![polunochnik](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/p/65b543/32.png) [@polunochnik](https://www.ruby-forum.com/u/polunochnik)\
**Post date:** [March 10, 2010, 9:25pm UTC](https://www.ruby-forum.com/t/sequel-migrations/184945/2 "2010-03-10T21:25:16Z")

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On Wednesday 10 March 2010 11:28:25 am P. A. wrote:

> Thanks.

They were moved into an extension. Simply add this:

require ‘sequel/extensions/migration’

- spox