How do you find the Top N rows per group?

How do you find the Top N rows per group?

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: hard

标签: interviewbit, sql, topic-specific, database

参考答案摘要

To find the Top N rows per group, a window function is used to rank rows within each group, followed by filtering based on that rank. This approach avoids grouping the data and allows row-level detail...

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