Ad
6 kyu
Multiples of 3 or 5
425,010jhoffner
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Simple remove duplicates
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SQL Basics: Simple table totaling.
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5 kyu
SQL Basics: Group By Day
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SQL Basics: Simple VIEW
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SQL Basics: Simple JOIN and RANK
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SQL Bug Fixing: Fix the JOIN
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SQL Basics: Simple WITH
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SQL Basics: Simple UNION ALL
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1. Find all active students
14,408raymartxx
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SQL Basics: Top 10 customers by total payments amount
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SQL Bug Fixing: Fix the QUERY - Totaling
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Best-Selling Books (SQL for Beginners #5)
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SQL Basics: Simple MIN / MAX
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SQL Basics: Simple DISTINCT
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