# Migration File **URL:** \ **Category:** Rails\ **Created:** [November 10, 2008, 7:42pm UTC](https://www.ruby-forum.com/t/migration-file/152974 "2008-11-10T19:42:11Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![bert\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/278dde/32.png) [@bert\_a](https://www.ruby-forum.com/u/bert_a)\ **Post date:** [November 10, 2008, 7:42pm UTC](https://www.ruby-forum.com/t/migration-file/152974/1 "2008-11-10T19:42:11Z")
All of the books I have show the migration file naming convention is 001, 002, etc When I ran script/generate model, the migration file was named: 20081110174511\_create\_users.rb Why does it have this complex number instead of 001? Is there a way to redo this and get the simpler name? ---
**Author:** ![bert\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/278dde/32.png) [@bert\_a](https://www.ruby-forum.com/u/bert_a)\ **Post date:** [November 11, 2008, 2:46am UTC](https://www.ruby-forum.com/t/migration-file/152974/2 "2008-11-11T02:46:19Z")
It’s a date/time stamp. I guess it’s guaranteed to be unique - as long as you ensure that you timeofday clock is in good shape. Rick On Nov 10, 8:42 am, Bert A. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) ---
**Author:** ![bert\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/278dde/32.png) [@bert\_a](https://www.ruby-forum.com/u/bert_a)\ **Post date:** [November 11, 2008, 3:33am UTC](https://www.ruby-forum.com/t/migration-file/152974/3 "2008-11-11T03:33:42Z")
On Nov 10, 7:45 pm, Rick [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > It’s a date/time stamp. I guess it’s guaranteed to be unique - as > long as you ensure that you timeofday clock is in good shape. > > Rick That’s the truth. It is meant to try and help with distributed development teams having duplicate numbers for migration files. ---
**Author:** ![bert\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/278dde/32.png) [@bert\_a](https://www.ruby-forum.com/u/bert_a)\ **Post date:** [November 11, 2008, 4:18pm UTC](https://www.ruby-forum.com/t/migration-file/152974/4 "2008-11-11T16:18:33Z")
Nope, nothing wrong, just a change. Glad we can be of some help. On Nov 10, 9:07 pm, Bert A. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) ---
**Author:** ![bert\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/b/278dde/32.png) [@bert\_a](https://www.ruby-forum.com/u/bert_a)\ **Post date:** [November 11, 2008, 4:07am UTC](https://www.ruby-forum.com/t/migration-file/152974/5 "2008-11-11T04:07:13Z")
Rick wrote: > It’s a date/time stamp. I guess it’s guaranteed to be unique - as > long as you ensure that you timeofday clock is in good shape. > > Rick > > On Nov 10, 8:42�am, Bert A. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) Thank you very much, Rick and Bobnation! I thought I did something wrong.