| 175 | Combine Two Tablesread | — | Easy | Database | 78% | |
| 176 | Second Highest Salaryread | — | Medium | Database | 44% | |
| 177 | Nth Highest Salaryread | — | Medium | Database | 38% | |
| 178 | Rank Scoresread | — | Medium | Database | 65% | |
| 180 | Consecutive Numbersread | — | Medium | Database | 46% | |
| 181 | Employees Earning More Than Their Managersread | — | Easy | Database | 71% | |
| 182 | Duplicate Emailsread | — | Easy | Database | 72% | |
| 183 | Customers Who Never Orderread | — | Easy | Database | 71% | |
| 184 | Department Highest Salaryread | — | Medium | Database | 54% | |
| 185 | Department Top Three Salariesread | — | Hard | Database | 57% | |
| 196 | Delete Duplicate Emailsread | — | Easy | Database | 64% | |
| 197 | Rising Temperatureread | — | Easy | Database | 50% | |
| 262 | Trips and Usersread | — | Hard | Database | 37% | |
| 511 | Game Play Analysis Iread | — | Easy | Database | 76% | |
| 550 | Game Play Analysis IVread | — | Medium | Database | 39% | |
| 570 | Managers with at Least 5 Direct Reportsread | — | Medium | Database | 49% | |
| 577 | Employee Bonusread | — | Easy | Database | 77% | |
| 584 | Find Customer Refereeread | — | Easy | Database | 72% | |
| 585 | Investments in 2016read | — | Medium | Database | 50% | |
| 586 | Customer Placing the Largest Number of Ordersread | — | Easy | Database | 64% | |
| 595 | Big Countriesread | — | Easy | Database | 68% | |
| 596 | Classes More Than 5 Studentsread | — | Easy | Database | 60% | |
| 601 | Human Traffic of Stadiumread | — | Hard | Database | 50% | |
| 602 | Friend Requests II: Who Has the Most Friendsread | — | Medium | Database | 61% | |
| 607 | Sales Personread | — | Easy | Database | 66% | |
| 608 | Tree Noderead | — | Medium | Database | 74% | |
| 610 | Triangle Judgementread | — | Easy | Database | 74% | |
| 619 | Biggest Single Numberread | — | Easy | Database | 69% | |
| 620 | Not Boring Moviesread | — | Easy | Database | 75% | |
| 626 | Exchange Seatsread | — | Medium | Database | 73% | |
| 627 | Swap Salaryread | — | Easy | Database | 84% | |
| 1045 | Customers Who Bought All Productsread | — | Medium | Database | 63% | |
| 1050 | Actors and Directors Who Cooperated At Least Three Timesread | — | Easy | Database | 71% | |
| 1068 | Product Sales Analysis Iread | — | Easy | Database | 84% | |
| 1070 | Product Sales Analysis IIIread | — | Medium | Database | 44% | |
| 1075 | Project Employees Iread | — | Easy | Database | 65% | |
| 1084 | Sales Analysis IIIread | — | Easy | Database | 47% | |
| 1141 | User Activity for the Past 30 Days Iread | — | Easy | Database | 49% | |
| 1148 | Article Views Iread | — | Easy | Database | 77% | |
| 1158 | Market Analysis Iread | — | Medium | Database | 57% | |
| 1164 | Product Price at a Given Dateread | — | Medium | Database | 57% | |
| 1174 | Immediate Food Delivery IIread | — | Medium | Database | 54% | |
| 1179 | Reformat Department Tableread | — | Easy | Database | 77% | |
| 1193 | Monthly Transactions Iread | — | Medium | Database | 58% | |
| 1204 | Last Person to Fit in the Busread | — | Medium | Database | 68% | |
| 1211 | Queries Quality and Percentageread | — | Easy | Database | 48% | |
| 1251 | Average Selling Priceread | — | Easy | Database | 37% | |
| 1280 | Students and Examinationsread | — | Easy | Database | 60% | |
| 1321 | Restaurant Growthread | — | Medium | Database | 56% | |
| 1327 | List the Products Ordered in a Periodread | — | Easy | Database | 72% | |