StackRating
An Elo-based rating system for Stack Overflow
                
    Answers and rating deltas for
    Python SQLAlchemy attribute-events - How to check oldvalue equals NO_VALUE?
| Author | Votes | Δ | 
|---|---|---|
| tyan | 0 | 0.00 | 
Last visited: Dec 7, 2016, 12:37:38 PM