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Subqueries and JOINs - Exercises
Contest details
The contest is active until: 00:00 30.6.2025
Problems for exercises and homework for the "Databases and SQL" course from the official "Applied Programmer" curriculum.
Contest participants: 20
Practice participants: 68
Problems
Employee Address
Условия
Employee Departments
Employees Without Projects
Employees With Project
Employee 24
Employee Manager
Highest Peaks in Bulgaria
Count Mountain Ranges
Countries With or Without Rivers
Continents and Currencies
Countries Without any Mountains
Highest Peak and Longest River by Country
Highest Peak Name and Elevation by Country