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Questions tagged database-relations

3 questions

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23
votes
5
answers

Foreign keys and NULL in mySQL

mysql sql database-design foreign-keys database-relations
asked 2010-05-10T12:26:25.000
154
votes
3
answers

Rails: Using build with a has_one association in rails

ruby-on-rails associations has-one database-relations
asked 2010-03-18T20:01:52.977
53
votes
1
answers

Cascade delete in Ruby ActiveRecord models?

ruby-on-rails rails-activerecord database-relations
asked 2009-12-13T15:08:42.093