| Consecutive Numbers | Medium | 47.9% |
| Employees Earning More Than Their Managers | Easy | 72.9% |
| Second Highest Salary | Medium | 46.4% |
| Rising Temperature | Easy | 51.0% |
| Department Top Three Salaries | Hard | 59.9% |
| Nth Highest Salary | Medium | 38.8% |
| Average Time of Process per Machine | Easy | 66.9% |
| Rank Scores | Medium | 67.2% |
| Article Views I | Easy | 76.7% |
| Invalid Tweets | Easy | 85.2% |
| Customer Who Visited but Did Not Make Any Transactions | Easy | 67.6% |
| User Activity for the Past 30 Days I | Easy | 50.5% |
| Recyclable and Low Fat Products | Easy | 88.7% |
| Students and Examinations | Easy | 61.0% |
| Combine Two Tables | Easy | 79.2% |
| Big Countries | Easy | 68.4% |
| Queries Quality and Percentage | Easy | 52.3% |
| Product Sales Analysis III | Medium | 45.6% |
| Managers with at Least 5 Direct Reports | Medium | 48.9% |
| Confirmation Rate | Medium | 61.7% |
| Product Sales Analysis I | Easy | 85.6% |
| Customers Who Never Order | Easy | 71.5% |
| Duplicate Emails | Easy | 73.4% |
| Fix Names in a Table | Easy | 60.6% |
| Find Customer Referee | Easy | 72.6% |
| Average Selling Price | Easy | 37.1% |
| Monthly Transactions I | Medium | 58.9% |
| Exchange Seats | Medium | 73.8% |
| Department Highest Salary | Medium | 57.3% |
| Immediate Food Delivery II | Medium | 55.7% |
| Median Employee Salary | Hard | 65.9% |
| Triangle Judgement | Easy | 74.5% |
| Daily Leads and Partners | Easy | |
| Restaurant Growth | Medium | 58.2% |
| Not Boring Movies | Easy | 75.1% |
| Number of Unique Subjects Taught by Each Teacher | Easy | 89.2% |
| Product Price at a Given Date | Medium | 57.7% |
| Actors and Directors Who Cooperated At Least Three Times | Easy | 70.9% |
| Replace Employee ID With The Unique Identifier | Easy | 83.5% |
| Employee Bonus | Easy | 77.2% |
| The Number of Employees Which Report to Each Employee | Easy | 53.0% |
| Delete Duplicate Emails | Easy | 65.6% |
| Customers Who Bought All Products | Medium | 63.7% |
| Percentage of Users Attended a Contest | Easy | 60.0% |
| Trips and Users | Hard | 37.7% |
| Game Play Analysis IV | Medium | 40.8% |
| Movie Rating | Medium | 42.8% |
| Human Traffic of Stadium | Hard | 50.8% |
| Sales Analysis III | Easy | 47.3% |
| Primary Department for Each Employee | Easy | 73.9% |
| Friend Requests II: Who Has the Most Friends | Medium | 62.3% |
| Last Person to Fit in the Bus | Medium | 69.0% |
| List the Products Ordered in a Period | Easy | 71.7% |
| Investments in 2016 | Medium | 50.8% |
| The Most Frequently Ordered Products for Each Customer | Medium | 77.7% |
| Project Employees I | Easy | 66.5% |
| Game Play Analysis I | Easy | 76.2% |
| Find Users With Valid E-Mails | Easy | 36.7% |
| Reformat Department Table | Easy | 76.3% |
| Product Sales Analysis IV | Medium | 75.9% |
| Biggest Single Number | Easy | 70.9% |
| Warehouse Manager | Easy | 87.3% |
| NPV Queries | Easy | 82.9% |
| Customers With Strictly Increasing Purchases | Hard | 49.5% |
| Customer Order Frequency | Easy | 66.5% |
| Group Sold Products By The Date | Easy | 77.8% |
| Analyze Organization Hierarchy | Hard | 59.5% |
| Swap Sex of Employees | Easy | 84.5% |
| Market Analysis I | Medium | 57.3% |
| Sales Person | Easy | 65.8% |
| Sales Analysis I | Easy | 74.8% |
| Find Total Time Spent by Each Employee | Easy | 86.4% |
| Rearrange Products Table | Easy | 85.5% |
| Sales Analysis II | Easy | 50.1% |
| Product's Price for Each Store | Easy | 82.1% |
| Report Contiguous Dates | Hard | 57.0% |
| Find Cumulative Salary of an Employee | Hard | 49.3% |
| Sales by Day of the Week | Hard | 76.3% |
| Friendly Movies Streamed Last Month | Easy | 48.9% |
| Product Sales Analysis II | Easy | 82.6% |
| Find the Missing IDs | Medium | 72.9% |
| All Valid Triplets That Can Represent a Country | Easy | 80.9% |
| Longest Winning Streak | Hard | 54.2% |
| Number of Calls Between Two Persons | Medium | 80.8% |
| Users With Two Purchases Within Seven Days | Medium | 46.7% |
| Number of Times a Driver Was a Passenger | Medium | 71.6% |
| Products With Three or More Orders in Two Consecutive Years | Medium | 40.5% |
| Grand Slam Titles | Medium | 82.9% |
| Product Sales Analysis V | Easy | 70.8% |
| Find the Team Size | Easy | 89.6% |
| Ad-Free Sessions | Easy | 58.9% |
| Find Interview Candidates | Medium | 60.6% |
| Students With Invalid Departments | Easy | 89.8% |
| Employees With Deductions | Medium | 42.4% |
| The Most Recent Orders for Each Product | Medium | 65.0% |
| All People Report to the Given Manager | Medium | 84.0% |
| Year on Year Growth Rate | Hard | 51.0% |
| Customer Purchasing Behavior Analysis | Medium | 36.4% |
| Pizza Toppings Cost Analysis | Medium | 67.4% |
| Game Play Analysis II | Easy | 54.5% |