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6 kyu
SQL Basics: Simple EXISTS
13,438matt c
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5 kyu
SQLonacci sequence
1,424marko-bekhta
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6 kyu
SQL Bug Fixing: Fix the QUERY - Totaling
8,885matt c
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6 kyu
Subqueries master
1,652Javatlacati
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6 kyu
SQL Basics: Simple JOIN and RANK
13,309matt c
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6 kyu
SQL Basics: Simple IN
12,860matt c
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7 kyu
SQL with Sailor Moon: Thinking about JOINs...
8,210sHale
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7 kyu
SQL Basics - Trimming the Field
7,657PG1
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5 kyu
SQL Statistics: MIN, MEDIAN, MAX
5,871matt c
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5 kyu
Using Window Functions To Get Top N per Group
2,892pmatseykanets
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7 kyu
SQL Basics: Simple JOIN with COUNT
19,950matt c
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6 kyu
SQL Basics: Simple UNION ALL
12,122matt c
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6 kyu
SQL Basics - Monsters using CASE
10,930PG1
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SQL Basics: Simple NULL handling
8,239matt c
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SQL Basics: Simple table totaling.
10,205matt c
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