thanks to all the suggestions and the link to the older libmysql.dll. I 
placed it in my ruby/bin and migration succeeded.

I had
mysql 5.1.32-community
ruby 1.8.6
rails 2.2.2
on windows xp

and was getting this error using rake db:migrate --trace
rake aborted!
undefined method `each' for #<Mysql:0x4873184>

I had to drop the preexisting tables and also remove the create_[table] 
rb files generated initially.
I'm following the tutorial at
http://www.tutorialspoint.com/ruby-on-rails/

Madhav Ruby wrote:
> The last suggestion that recommended downloadling libmysql.dll worked 
> for me.
> Thanks!
> 
> [email protected] wrote:
>> The problem is that libmysql.dll shipped with Mysql doesn't play well
>> with ruby 2.2..
>> 
>> The solution is to download the libmysql.dll from:
>> 
>> http://instantrails.rubyforge.org/svn/trunk/InstantRails-win/InstantRails/mysql/bin/libmySQL.dll
>> 
>> and save this in your ruby bin directory
>> 
>> see also: 
>> http://forums.aptana.com/viewtopic.php?f=20&t=7563&p=27407&hilit=libmysql.dll#p27407
>> 
>> 
>> 
>> On Dec 1 2008, 5:22�am, David Franklin <rails-mailing-l...@andreas-

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