Practice problems across 75+ categories
Practice problems frequently asked at Database • 324 problems | 120 Easy | 135 Medium | 61 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 166 | Group Sold Products By The Date | Easy | Database |
| 167 | Highest Grade For Each Student | Medium | Database |
| 168 | Highest Salaries Difference | Easy | Database |
| 169 | Hopper Company Queries I | Hard | Database |
| 170 | Hopper Company Queries II | Hard | Database |
| 171 | Hopper Company Queries III | Hard | Database |
| 172 | Human Traffic of Stadium | Hard | Database |
| 173 | Immediate Food Delivery I | Easy | Database |
| 174 | Immediate Food Delivery II | Medium | Database |
| 175 | Immediate Food Delivery III | Medium | Database |
| 176 | Invalid Tweets | Easy | Database |
| 177 | Invalid Tweets II | Easy | Database |
| 178 | Inversion of Object | Easy | Database |
| 179 | Investments in 2016 | Medium | Database |
| 180 | Last Person to Fit in the Bus | Medium | Database |
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