Trainer
Tasks
Catalogue, real-interview problems, and AI-generated practice for your weak spots.
336 tasks
1
Train Passengers Departing Vienna
Medium+25
2Discount on Action Games
Easy+10
3Earning More Than the Boss
Medium+25
4Second-Largest Salary
Medium+25
5Three Highest Salaries by Department
Medium+25
6Full Fan Roster
Easy+10
7Names Ending with man
Easy+10
8How Many Club Concerts
Easy+10
9Venue Types for Moscow Concerts
Easy+10
10Outbound Tours from Paris
Easy+10
11Bands Departing Vladivostok
Easy+10
12Tour Departures in a Time Window
Medium+25
13Longest Name Among Fans
Easy+10
14Fan Count per Concert
Easy+10
15Fans by Concert Count
Medium+25
16Member Spending in 2005
Medium+25
17The Club's Eldest
Easy+10
18Biography Spending
Medium+25
19Most Expensive Novel Loan
Medium+25
20Spending in June 2005
Medium+25