StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
Is there any way to count non null values of a column and insert into another column such that the c
| Author | Votes | Δ |
|---|---|---|
| Pரதீப் | 2 | +1.57 |
| Gordon Linoff | 0 | -1.57 |
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