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7 kyu
SQL Basics: Raise to the Power
11,778PG1
Completed Languages:
7 kyu
Easy SQL: Counting and Grouping
15,013PG1
Completed Languages:
7 kyu
SQL Basics - Position
11,065PG1
Completed Languages:
7 kyu
SQL Basics: Simple GROUP BY
22,004matt c
Completed Languages:
7 kyu
SQL Basics: Simple JOIN with COUNT
19,516matt c
Completed Languages:
5 kyu
Using LATERAL JOIN To Get Top N per Group
1,967pmatseykanets
Completed Languages:
5 kyu
SQL Basics: Simple Hierarchical structure
2,791matt c
Completed Languages:
5 kyu
SQL Basics: Simple VIEW
3,946matt c
Completed Languages:
4 kyu
Calculating Month-Over-Month Percentage Growth Rate
2,310pmatseykanets
Completed Languages:
5 kyu
Calculating Running Total
4,529pmatseykanets
Completed Languages:
4 kyu
Challenge: Two actors who cast together the most
3,249pmatseykanets
Completed Languages:
4 kyu
Total items belonging to the categories on all tree levels
266FArekkusu
Completed Languages:
5 kyu
Count IP Addresses
27,859xDranik
Completed Languages:
6 kyu
SQL Basics - Monsters using CASE
10,734PG1
Completed Languages:
5 kyu
SQL Basics: Simple PIVOTING data
2,757matt c
Completed Languages:
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