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4 kyu
Challenge: Two actors who cast together the most
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SQL Basics: Simple PIVOTING data
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6 kyu
Conditional Count
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SQL Basics: Simple UNION ALL
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SQL Basics: Simple IN
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SQL Basics - Monsters using CASE
10,694PG1
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SQL Basics: Simple EXISTS
13,146matt c
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SQL Basics: Simple JOIN and RANK
12,981matt c
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SQL Basics: Top 10 customers by total payments amount
13,220jhoffner
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SQL Basics: Simple HAVING
18,959matt c
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7 kyu
Simple Fun #74: Growing Plant
12,001myjinxin2015
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7 kyu
Sum of Triangular Numbers
16,718ThomasL
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SQL: Concatenating Columns
13,288PG1
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SQL with LOTR: Elven Wildcards
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Easy SQL: Counting and Grouping
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