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6 kyu
SELECT prime numbers
2,549sq6jnx
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5 kyu
Count Weekdays
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7 kyu
SQL: Regex Replace
5,588PG1
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7 kyu
SQL: Disorder
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8 kyu
Easy SQL: Square Root and Log
9,557PG1
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GROCERY STORE: Real Price!
3,782baaart
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7 kyu
SQL with Sailor Moon: Thinking about JOINs...
8,210sHale
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Easy SQL: Moving Values
4,671PG1
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4 kyu
Dealing With Messy Data
1,248danicat
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5 kyu
SQL Basics: Group By Day
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SQL Basics: Create a FUNCTION
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6 kyu
SQL Basics: Create a FUNCTION (DATES)
3,501matt c
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6 kyu
SQL Basics: Simple PIVOTING data WITHOUT CROSSTAB
3,374marko-bekhta
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SQL Basics: Simple NULL handling
8,239matt c
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SQLonacci sequence
1,424marko-bekhta
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