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7 kyu
SQL with Sailor Moon: Thinking about JOINs...
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SQL Basics - Trimming the Field
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SQL Basics: Create a FUNCTION
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SQL: Regex AlphaNumeric Split
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SQL Basics: Simple JOIN and RANK
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Sneaky student #1
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Exclude 'Adults only' films watchers
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SQL Basics: Simple EXISTS
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Students who excel in Science over Math
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SQL Basics: Simple HAVING
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SQL Basics: Simple GROUP BY
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Easy SQL - Ordering
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SQL Basics: Simple WHERE and ORDER BY
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Century From Year
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SQL Basics: Simple MIN / MAX
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