| 00175 |
Combine Two Tables |
Easy |
| 00176 |
Second Highest Salary |
Medium |
| 00177 |
Nth Highest Salary |
Medium |
| 00178 |
Rank Scores |
Medium |
| 00180 |
Consecutive Numbers |
Medium |
| 00181 |
Employees Earning More Than Their Managers |
Easy |
| 00182 |
Duplicate Emails |
Easy |
| 00183 |
Customers Who Never Order |
Easy |
| 00184 |
Department Highest Salary |
Medium |
| 00185 |
Department Top Three Salaries |
Hard |
| 00196 |
Delete Duplicate Emails |
Easy |
| 00197 |
Rising Temperature |
Easy |
| 00262 |
Trips and Users |
Hard |
| 00511 |
Game Play Analysis I |
Easy |
| 00550 |
Game Play Analysis IV |
Medium |
| 00570 |
Managers with at Least 5 Direct Reports |
Medium |
| 00577 |
Employee Bonus |
Easy |
| 00584 |
Find Customer Referee |
Easy |
| 00585 |
Investments in 2016 |
Medium |
| 00586 |
Customer Placing the Largest Number of Orders |
Easy |
| 00595 |
Big Countries |
Easy |
| 00596 |
Classes With at Least 5 Students |
Easy |
| 00601 |
Human Traffic of Stadium |
Hard |
| 00602 |
Friend Requests II: Who Has the Most Friends |
Medium |
| 00607 |
Sales Person |
Easy |
| 00608 |
Tree Node |
Medium |
| 00610 |
Triangle Judgement |
Easy |
| 00619 |
Biggest Single Number |
Easy |
| 00620 |
Not Boring Movies |
Easy |
| 00626 |
Exchange Seats |
Medium |
| 00627 |
Swap Sex of Employees |
Easy |
| 01045 |
Customers Who Bought All Products |
Medium |
| 01050 |
Actors and Directors Who Cooperated At Least Three Times |
Easy |
| 01068 |
Product Sales Analysis I |
Easy |
| 01070 |
Product Sales Analysis III |
Medium |
| 01075 |
Project Employees I |
Easy |
| 01084 |
Sales Analysis III |
Easy |
| 01141 |
User Activity for the Past 30 Days I |
Easy |
| 01148 |
Article Views I |
Easy |
| 01158 |
Market Analysis I |
Medium |
| 01179 |
Reformat Department Table |
Easy |
| 01211 |
Queries Quality and Percentage |
Easy |
| 01251 |
Average Selling Price |
Easy |
| 01280 |
Students and Examinations |
Easy |
| 01327 |
List the Products Ordered in a Period |
Easy |
| 01378 |
Replace Employee ID With The Unique Identifier |
Easy |
| 01407 |
Top Travellers |
Easy |
| 01484 |
Group Sold Products By The Date |
Easy |
| 01517 |
Find Users With Valid E-Mails |
Easy |
| 01527 |
Patients With a Condition |
Easy |
| 01581 |
Customer Who Visited but Did Not Make Any Transactions |
Easy |
| 01587 |
Bank Account Summary II |
Easy |
| 01633 |
Percentage of Users Attended a Contest |
Easy |
| 01661 |
Average Time of Process per Machine |
Easy |
| 01667 |
Fix Names in a Table |
Easy |
| 01683 |
Invalid Tweets |
Easy |
| 01693 |
Daily Leads and Partners |
Easy |
| 01729 |
Find Followers Count |
Easy |
| 01731 |
The Number of Employees Which Report to Each Employee |
Easy |
| 01741 |
Find Total Time Spent by Each Employee |
Easy |
| 01757 |
Recyclable and Low Fat Products |
Easy |
| 01789 |
Primary Department for Each Employee |
Easy |
| 01795 |
Rearrange Products Table |
Easy |
| 01873 |
Calculate Special Bonus |
Easy |
| 01890 |
The Latest Login in 2020 |
Easy |
| 01965 |
Employees With Missing Information |
Easy |
| 01978 |
Employees Whose Manager Left the Company |
Easy |
| 02356 |
Number of Unique Subjects Taught by Each Teacher |
Easy |
| 03436 |
Find Valid Emails |
Easy |
| 03465 |
Find Products with Valid Serial Numbers |
Easy |
| 03570 |
Find Books with No Available Copies |
Easy |
| 03793 |
Find Users with High Token Usage |
Easy |
| 01164 |
Product Price at a Given Date |
Medium |
| 01174 |
Immediate Food Delivery II |
Medium |
| 01174 |
Immediate Food Delivery II |
Medium |
| 01204 |
Last Person to Fit in the Bus |
Medium |
| 01321 |
Restaurant Growth |
Medium |
| 01341 |
Movie Rating |
Medium |
| 01393 |
Capital Gain/Loss |
Medium |
| 01907 |
Count Salary Categories |
Medium |