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Summy
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Retired
Sudoku Solution Validator
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Strip Comments
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6 kyu
Valid Braces
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8 kyu
Reversed sequence
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Calculating Month-Over-Month Percentage Growth Rate
2,310pmatseykanets
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4 kyu
Dealing With Messy Data
1,228danicat
Completed Languages:
8 kyu
MakeUpperCase
173,236wichu
Completed Languages:
7 kyu
SQL Basics: Simple GROUP BY
22,007matt c
Completed Languages:
8 kyu
SQL Basics: Simple DISTINCT
21,791matt c
Completed Languages:
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SQL Basics: Simple JOIN
21,548jhoffner
Completed Languages:
4 kyu
Sortable Poker Hands
458FrankK
Completed Languages:
4 kyu
Ranking Poker Hands
3,242FrankK
Completed Languages:
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SQL Basics: Simple MIN / MAX
20,541matt c
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1. Find all active students
14,241raymartxx
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