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Active Record Migrations - Rails Edge Guides

Rather than write schema modifications in pure SQL, migrations allow you to use a Ruby DSL to describe changes to your tables. After ...

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查詢 「Use migration」的人也找了：

  1. Migration Assistant
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  2. Use migration
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  3. add-migration
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  4. Migration Assistant download
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  5. Enable-Migrations
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  6. Migration script
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  7. Add-migration not found
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  8. Remove-migration
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