Question: Is there a way to export database structure in the database from the rails application?
I believe there is a way to export Data from the db using rake.

`rake db:migrate` will create tables from migration files. Is there a command that does opposite way so that migration files will be generated from the db?

I have previously built a rails application during 3.0.x version.

I have many more migration files than the actual number of tables in the database because I have some migration file which adds and removes or change the column structure of the database.

Obviously, I can manually change each migration file and change it into migration file with 3.1 standard, but I just want to know if there is a way to export data base structure.
(Or, deriving from existing schema file)

Answer: 
Use command `rake db:schema:dump`, it will do it for you

Edit:
You might be interested in this link:
<http://www.tutorialspoint.com/ruby-on-rails/rails-and-rake.htm>
After rake db:schema:dump you can use a gem called schema\_to\_scaffold to generate a scaffold script.
it outputs: rails g scaffold users fname:string lname:string bdate:date email:string encrypted\_password:string
from your schema.rb our your renamed schema.rb. Check [here](https://rubygems.org/gems/schema_to_scaffold)