StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
Oracle: Union columns if non-null value exists
| Author | Votes | Δ |
|---|---|---|
| hvd | 2 | +0.75 |
| Frank Schmitt | 0 | -0.60 |
| Oscar Pérez | 0 | -1.22 |
Last visited: Sep 14, 2014, 5:07:29 AM