StackRating
An Elo-based rating system for Stack Overflow
Answers and rating deltas for
How can I add DB level Unique constraint to a column in a table in Rails using the migration file?
| Author | Votes | Δ |
|---|---|---|
| matthewd | 2 | 0.00 |
Last visited: Jan 1, 2019, 8:55:20 AM