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    almost certainly depends on your usage. do you have some context? multi-table can really end up shooting you in the foot, so i'd make sure that's required before choosing that path. (inheritance doesn't really play well with databases) Commented Feb 9, 2013 at 9:59
  • I'm reading a book and they defined that 3 model inheritance. If I have so many fields that the same they use of course I will use model inheritance. But in my question is which better in your opnion? Commented Feb 9, 2013 at 10:02
  • It still depends on your usecase. To what extent are the inheriting models related, and to what extent would they be different? Do you want to be able to perform queries on the base model, or just on the inheriting models separately? Commented Feb 9, 2013 at 11:00