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5 kyu
SQL Statistics: MIN, MEDIAN, MAX
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Relational division: Find all movies two actors cast in together
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Present XML data the SQL way
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SQL Bug Fixing: Fix the JOIN
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SQL Basics: Simple PIVOTING data WITHOUT CROSSTAB
3,262marko-bekhta
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SQL Basics: Create a FUNCTION (DATES)
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SQL Basics: Simple NULL handling
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SQL Basics: Simple JOIN and RANK
12,832matt c
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6 kyu
SQL Basics: Top 10 customers by total payments amount
13,047jhoffner
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6 kyu
SQL Basics: Simple IN
12,425matt c
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6 kyu
SQL Basics: Simple WITH
8,641matt c
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6 kyu
SQL Basics: Simple HAVING
18,678matt c
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SQL Basics: Simple EXISTS
12,971matt c
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SQL Basics: Simple UNION ALL
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SQL Basics: Simple table totaling.
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