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8 kyu
Easy SQL: LowerCase
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SQL Basics: Simple GROUP BY
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6 kyu
SQL Basics: Simple JOIN and RANK
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SQL with Pokemon: Damage Multipliers
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SQL with Sailor Moon: Thinking about JOINs...
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SQL: Concatenating Columns
13,444PG1
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SQL Basics: Simple WHERE and ORDER BY
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SQL Basics: Repeat and Reverse
10,586PG1
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Maximum subarray sum
79,834knotman90
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Perimeter of squares in a rectangle
42,080g964
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Can you get the loop ?
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Count characters in your string
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Build a pile of Cubes
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Duplicate Encoder
221,775obnounce
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Fuel economy converter (mpg <-> L/100 km)
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