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Subqueries master
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SQL Basics - Monsters using CASE
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Beginner Series #2 Clock
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SQL with Street Fighter: Total Wins
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SQL Basics: Simple JOIN
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SQL Basics: Simple UNION ALL
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SQL Bug Fixing: Fix the JOIN
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SQL Basics: Top 10 customers by total payments amount
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SQL Basics: Simple IN
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SQL Basics: Simple JOIN and RANK
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SQL Tuning: Function Calls
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Sum of Intervals
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SQL Basics: Group By Day
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