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SQL Coding Questions by Industry

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SQL Coding Questions by SQL Operations

Single table operations

SELECT, WHERE, AND, OR, ORDER BY, LIMIT

COUNT, SUM, AVERAGE, MIN, MAX, GROUP BY, HAVING

IN, BETWEEN, LIKE, CASE WHEN

Multi-table operations

INNER JOIN

OUTER JOIN

UNION, UNION ALL

WINDOW functions

AVG, SUM, MAX/MIN

ROW_NUMBER, RANK, DENSE_RANK

NTILE

LAG, LEAD

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SQL Coding Questions & Answers

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Window Functions: Lecture 3: NTILE


ID Title Level FTPR Lecture
65 Movie revenue percentiles easy
16%
4.3
66 Movie percentiles by revenue by category medium
19%
4.3
67 Quartile by number of rentals easy
24%
4.3
77 Movie revenue percentiles by category easy
20%
4.3
78 Quartiles buckets by number of rentals medium
23%
4.3
103 Median and average session duration by day of the week mobile medium
17%
4.3
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