Rails - Jun 2013 - Why have to Generate a migration from an existing MySQL Database?

I''m a newbie ROR
I reading some Document and I know Generate a migration from an existing
MySQL Database
I don''t know why have to do it?This action can solve problems?
please someone ever to done this can explain for me this.
Thanks....

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On 20 June 2013 18:19, haxuan lac
<lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org>
wrote:
> I''m a newbie ROR
> I reading some Document and I know Generate a migration from an existing
> MySQL Database
> I don''t know why have to do it?This action can solve problems?
> please someone ever to done this can explain for me this.
There is no need to generate migrations to recreate an existing database.

Colin

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