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Answers and rating deltas for
How do i add a summation column to my table on Rails 4
| Author | Votes | Δ |
|---|---|---|
| Nermin | 2 | 0.00 |
Last visited: Nov 12, 2015, 11:02:50 AM
| Author | Votes | Δ |
|---|---|---|
| Nermin | 2 | 0.00 |