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6 kyu
SQL Basics: Simple JOIN and RANK
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BASICS: Length based SELECT with LIKE
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GROCERY STORE: Logistic Optimisation
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Using Window Functions To Get Top N per Group
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SQL Basics: Top 10 customers by total payments amount
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GROCERY STORE: Support Local Products
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GROCERY STORE: Inventory
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GROCERY STORE: Real Price!
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SQL Basics: Simple PIVOTING data
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SQL: Regex AlphaNumeric Split
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SQL with Pokemon: Damage Multipliers
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SQL: Bytes in String from Ints
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SQL Basics: Maths with String Manipulations
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SQL: Regex Replace
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SQL with Street Fighter: Total Wins
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