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Answers and rating deltas for
Is there a way to get Sum of column whose datatype is varchar
| Author | Votes | Δ |
|---|---|---|
| Amit | 4 | +1.47 |
| Grisha Weintraub | 2 | +0.41 |
| mattytommo | 1 | -0.71 |
| Minav Patel | 1 | +0.20 |
| Ramesh Rajendran | 0 | -0.83 |
| ashoka | 0 | -2.89 |
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