Ruby Plus #33: Self Join Basics : SQL and Rails Has One Association Posted in Development, Frameworks, Databases on June 29, 2008 Learn the basics of self join. This screencast will show you the sql query for self join and how you can use has_one association in Rails. Watch Video Watch Video on External Site Tags: Ruby, Ruby On Rails, Frameworks, Databases, SQL, Ruby Plus, has_one, associations Related Search Queries rails self join self join in sql sql self join self join sql ruby on rails self join ruby on rails self ruby on rails self joins linq to sql self join rails self joins ruby join sql ruby self join rails sql join linq self join grails self join zend framework self join self joins in sql self join linq self join in ruby on rails ruby sql join linq self join c sqlite self join sql self joins ruby rails self join ruby join rails self association Please enable JavaScript to view the comments powered by Disqus.