Top Questions

1. What are namespaces?
   278 votes

   12 answers
2. What is SELF JOIN and when would you use it?
   137 votes

   5 answers
3. What is MVC in Ruby on Rails?
   25 votes

   8 answers
4. Is there a reason MySQL doesn't support FULL OUTER JOINS?
   22 votes

   6 answers
5. I don't understand Collation? (Mysql, RDBMS, Character sets)
   14 votes

   2 answers