Practice problems across 75+ categories
Practice problems frequently asked at Database • 324 problems | 120 Easy | 135 Medium | 61 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 301 | The Winner University | Easy | Database |
| 302 | Top Percentile Fraud | Medium | Database |
| 303 | Top Three Wineries | Hard | Database |
| 304 | Top Travellers | Easy | Database |
| 305 | Total Sales Amount by Year | Hard | Database |
| 306 | Total Traveled Distance | Easy | Database |
| 307 | Tournament Winners | Hard | Database |
| 308 | Tree Node | Medium | Database |
| 309 | Triangle Judgement | Easy | Database |
| 310 | Trips and Users | Hard | Database |
| 311 | Unique Orders and Customers Per Month | Easy | Database |
| 312 | Unpopular Books | Unknown | Database |
| 313 | User Activities within Time Bounds | Hard | Database |
| 314 | User Activity for the Past 30 Days I | Easy | Database |
| 315 | User Activity for the Past 30 Days II | Easy | Database |
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