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Answers and rating deltas for
sql query to calculate the stock of each product from table of sells and table the purchases
| Author | Votes | Δ |
|---|---|---|
| jarlh | 2 | +1.54 |
| Rajat | 1 | +0.45 |
| Gordon Linoff | 1 | -0.46 |
| Hogan | 0 | -1.54 |
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