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Refactoring SQL Queries: part 1 (removing UNION)
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SQL: Right and Left
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Easy SQL: Counting and Grouping
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Easy SQL: Square Root and Log
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Easy SQL: LowerCase
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SQL Basics: Mod
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Collect Tuition (SQL for Beginners #4)
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On the Canadian Border (SQL for Beginners #2)
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Adults only (SQL for Beginners #1)
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SQL Basics: Simple WHERE and ORDER BY
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Is he gonna survive?
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Countries Capitals for Trivia Night (SQL for Beginners #6)
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Grasshopper - Combine strings
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Multiply the number
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Invert values
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