StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
Mysql: CONCAT_WS('', col) vs (col is null OR col=0)
| Author | Votes | Δ |
|---|---|---|
| Gordon Linoff | 2 | +1.51 |
| Shadow | 1 | -1.51 |
Last visited: Jan 31, 2016, 10:13:12 PM