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5 kyu
Using LATERAL JOIN To Get Top N per Group
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SQL Basics: Simple PIVOTING data
2,883matt c
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7 kyu
Easy SQL: Absolute Value and Log to Base
7,219PG1
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8 kyu
Convert boolean values to strings 'Yes' or 'No'.
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GROCERY STORE: Logistic Optimisation
6,241baaart
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GROCERY STORE: Support Local Products
8,699baaart
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7 kyu
Easy SQL: Counting and Grouping
15,775PG1
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7 kyu
SQL Basics: Repeat and Reverse
10,983PG1
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8 kyu
Returning Strings
244,686Aweson1
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7 kyu
Books That Are Always Being Returned
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7 kyu
Loan Eligibility: part 1
327bornForThis
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SQL with Sailor Moon: Thinking about JOINs...
8,447sHale
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SQL Grasshopper: Select Columns
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SQL Basics: Simple JOIN
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Century From Year
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