Practice problems across 75+ categories
Practice problems frequently asked at Database • 324 problems | 120 Easy | 135 Medium | 61 Hard
| # | Problem | Difficulty | Topics |
|---|---|---|---|
| 151 | Friends With No Mutual Friends | Medium | Database |
| 152 | Game Play Analysis I | Easy | Database |
| 153 | Game Play Analysis II | Easy | Database |
| 154 | Game Play Analysis III | Medium | Database |
| 155 | Game Play Analysis IV | Medium | Database |
| 156 | Game Play Analysis V | Hard | Database |
| 157 | Generate the Invoice | Hard | Database |
| 158 | Get Highest Answer Rate Question | Medium | Database |
| 159 | Get the Second Most Recent Activity | Hard | Database |
| 160 | Grand Slam Titles | Medium | Database |
| 161 | Group Employees of the Same Salary | Medium | Database |
| 162 | Group Sold Products By The Date | Easy | Database |
| 163 | Highest Grade For Each Student | Medium | Database |
| 164 | Highest Salaries Difference | Easy | Database |
| 165 | Hopper Company Queries I | Hard | Database |
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