StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
how to set unique constraint over 2 columns when one column can be null
| Author | Votes | Δ |
|---|---|---|
| sayap | 3 | +4.98 |
| mu is too short | 2 | -0.46 |
Last visited: Sep 14, 2014, 5:07:29 AM