StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
How to concatenate two columns that might contain NULL values in a select statement?
| Author | Votes | Δ |
|---|---|---|
| Vamsi Prabhala | 2 | +0.64 |
| Bernd Buffen | 0 | -0.47 |
| Forklift | 0 | -1.37 |
Last visited: Jun 24, 2017, 4:03:14 PM