StackRating

An Elo-based rating system for Stack Overflow
Home   |   About   |   Stats and Analysis   |   Get a Badge
Answers and rating deltas for

How to group by a column with null values

Author Votes Δ
jarlh 3 +0.50
dchar 1 -3.97
Last visited: Jan 3, 2016, 1:01:53 AM