StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
How can I constrain multiple columns to prevent duplicates, but ignore null values?
| Author | Votes | Δ |
|---|---|---|
| DCookie | 7 | +3.95 |
| Chris | 6 | +1.30 |
| Steve Kass | 2 | 0.00 |
| Petros | 1 | -3.82 |
Last visited: Sep 14, 2014, 5:07:29 AM