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7 kyu
SQL Basics: Raise to the Power
11,874PG1
Completed Languages:
7 kyu
Easy SQL: Counting and Grouping
15,207PG1
Completed Languages:
7 kyu
SQL Basics - Position
11,163PG1
Completed Languages:
7 kyu
SQL Basics: Simple GROUP BY
22,243matt c
Completed Languages:
7 kyu
SQL Basics: Simple JOIN with COUNT
19,766matt c
Completed Languages:
5 kyu
Using LATERAL JOIN To Get Top N per Group
1,988pmatseykanets
Completed Languages:
5 kyu
SQL Basics: Simple Hierarchical structure
2,819matt c
Completed Languages:
5 kyu
SQL Basics: Simple VIEW
3,983matt c
Completed Languages:
4 kyu
Calculating Month-Over-Month Percentage Growth Rate
2,339pmatseykanets
Completed Languages:
5 kyu
Calculating Running Total
4,588pmatseykanets
Completed Languages:
4 kyu
Challenge: Two actors who cast together the most
3,280pmatseykanets
Completed Languages:
4 kyu
Total items belonging to the categories on all tree levels
271FArekkusu
Completed Languages:
5 kyu
Count IP Addresses
28,514xDranik
Completed Languages:
6 kyu
SQL Basics - Monsters using CASE
10,835PG1
Completed Languages:
5 kyu
SQL Basics: Simple PIVOTING data
2,788matt c
Completed Languages:
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