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6 kyu
Calculating Batting Average
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Completed Languages:
6 kyu
SQL Basics: Simple EXISTS
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6 kyu
SQL Bug Fixing: Fix the QUERY - Totaling
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6 kyu
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SQL Basics: Simple NULL handling
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6 kyu
SQL Bug Fixing: Fix the JOIN
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5 kyu
Using Window Functions To Get Top N per Group
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5 kyu
Factorial decomposition
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Making a changelog
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4 kyu
Challenge: Two actors who cast together the most
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6 kyu
SQL Basics: Top 10 customers by total payments amount
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4 kyu
parseInt() reloaded
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3 kyu
Sudoku Solver
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SQL Basics: Simple PIVOTING data
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