I started a new Ruby on Rails project today, and I decided to create the database using migrations. I should have been doing this all along, but I never really understood migrations or what the benefit might be. Well, now I know. In about 10 minutes, I created my Rails migration files, and then I ran “rake db:migrate”. Bam! There was my MySQL database, just as I had planned for it to look. Amazing! To see the simplicity first hand, here is a code sample using Rails 2.0.
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The resulting table is:
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