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6 kyu
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SQL Tuning: Function Calls
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SQL Basics: Simple PIVOTING data
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SQL Bug Fixing: Fix the JOIN
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Relational division: Find all movies two actors cast in together
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SQL Basics: Simple Hierarchical structure
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SQL: Bytes in String from Ints
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SQL: Padding Encryption
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6 kyu
SQL Basics: Simple UNION ALL
12,103matt c
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5 kyu
SQL Statistics: MIN, MEDIAN, MAX
5,860matt c
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Collect Tuition (SQL for Beginners #4)
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6 kyu
SQL Basics: Simple HAVING
19,379matt c
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Easy SQL: Counting and Grouping
15,312PG1
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SQL Bug Fixing: Fix the QUERY - Totaling
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