StackRating
An Elo-based rating system for Stack Overflow
                
    Answers and rating deltas for
    How to group two categories as a one group in SQL
| Author | Votes | Δ | 
|---|---|---|
| amahfouz | 7 | +1.67 | 
| Gordon Linoff | 2 | -1.21 | 
| Emacs User | 0 | -3.67 | 
Last visited: Nov 11, 2015, 9:14:27 AM