4 kyu
Shortest Knight Path
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6 kyu
Analyzing the sales by product and date
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Calculating with Functions
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Present JSON data the SQL way
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Mexican Wave
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The Supermarket Queue
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Conditional Count
7,449pmatseykanets
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78,171stevenbarragan
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parseInt() reloaded
18,295BattleRattle
Completed Languages:
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SQL Basics: Simple UNION ALL
12,217matt c
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6 kyu
SQL Basics - Monsters using CASE
11,027PG1
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SQL Basics: Simple JOIN and RANK
13,434matt c
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SQL Basics: Simple EXISTS
13,550matt c
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SQL Basics: Top 10 customers by total payments amount
13,670jhoffner
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SQL Basics: Simple HAVING
19,580matt c
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