Top Answers

1. What should every developer know about databases?
   110 votes
2. Can I have multiple primary keys in a single table?
   45 votes
3. In SQL, how can you "group by" in ranges?
   40 votes
4. Are nulls in a relational database okay?
   23 votes
5. Is there ever a time where using a database 1:1 relationship makes sense?
   22 votes