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4 kyu
Calculating Month-Over-Month Percentage Growth Rate
2,376pmatseykanets
Completed Languages:
4 kyu
Challenge: Two actors who cast together the most
3,351pmatseykanets
Completed Languages:
5 kyu
Students Who Consistently Improve: A Trimester Analysis in UK University
175bornForThis
Completed Languages:
5 kyu
Vector addition
171FArekkusu
Completed Languages:
5 kyu
Count Weekdays
1,498pmatseykanets
Completed Languages:
5 kyu
Using LATERAL JOIN To Get Top N per Group
2,041pmatseykanets
Completed Languages:
5 kyu
Using Window Functions To Get Top N per Group
2,926pmatseykanets
Completed Languages:
5 kyu
Calculating Running Total
4,691pmatseykanets
Completed Languages:
5 kyu
Relational division: Find all movies two actors cast in together
7,673pmatseykanets
Completed Languages:
6 kyu
Reporting on House Maintenance Tasks Completion
123bornForThis
Completed Languages:
6 kyu
Unlocking the Popularity Secrets of Children's Films: Analyzing Rentals
156bornForThis
Completed Languages:
6 kyu
Finding the Friday Night DVD Rental Kings/Queens
182bornForThis
Completed Languages:
6 kyu
Customer Orders: Products 1 & 2, Excluding 3
140bornForThis
Completed Languages:
6 kyu
Customers with Urgently Expiring Certificates
142bornForThis
Completed Languages:
6 kyu
Users' pets and JSON data: Part 1
120bornForThis
Completed Languages:
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