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7 kyu
SQL Basics: Raise to the Power
12,338PG1
Completed Languages:
7 kyu
Easy SQL: Counting and Grouping
15,820PG1
Completed Languages:
7 kyu
SQL Basics - Position
11,609PG1
Completed Languages:
7 kyu
SQL Basics: Simple GROUP BY
23,010matt c
Completed Languages:
7 kyu
SQL Basics: Simple JOIN with COUNT
20,521matt c
Completed Languages:
5 kyu
Using LATERAL JOIN To Get Top N per Group
2,092pmatseykanets
Completed Languages:
5 kyu
SQL Basics: Simple Hierarchical structure
2,944matt c
Completed Languages:
5 kyu
SQL Basics: Simple VIEW
4,105matt c
Completed Languages:
4 kyu
Calculating Month-Over-Month Percentage Growth Rate
2,440pmatseykanets
Completed Languages:
5 kyu
Calculating Running Total
4,778pmatseykanets
Completed Languages:
4 kyu
Challenge: Two actors who cast together the most
3,420pmatseykanets
Completed Languages:
4 kyu
Total items belonging to the categories on all tree levels
319FArekkusu
Completed Languages:
5 kyu
Count IP Addresses
30,997xDranik
Completed Languages:
6 kyu
SQL Basics - Monsters using CASE
11,218PG1
Completed Languages:
5 kyu
SQL Basics: Simple PIVOTING data
2,887matt c
Completed Languages:
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