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Answers and rating deltas for
How do I write a SQL query to display course_id, course_name and fee collected from each course?
| Author | Votes | Δ |
|---|---|---|
| OLIVER.KOO | 2 | +3.85 |
| Kostas Mitsarakis | 0 | -0.48 |
Last visited: Oct 27, 2017, 7:18:27 AM