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4 kyu
Square into Squares. Protect trees!
10,923g964
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SQL Basics: Group By Day
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SQL Basics: Top 10 customers by total payments amount
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Perimeter of squares in a rectangle
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Binary multiple of 3
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Retired
Valid Parentheses
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6 kyu
Conditional Count
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SQL Basics: Truncating
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SQL Basics: Simple JOIN and RANK
13,180matt c
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SQL Basics - Trimming the Field
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Calculating Batting Average
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SQL with Sailor Moon: Thinking about JOINs...
8,134sHale
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SQL Basics: Create a FUNCTION (DATES)
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SQL Basics: Repeat and Reverse
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SQL Basics: Simple GROUP BY
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