How are aggregate functions like SUM, COUNT, AVG, MAX, and MIN used in SQL?

How are aggregate functions like SUM, COUNT, AVG, MAX, and MIN used in SQL?

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: medium

标签: interviewbit, data-analyst, topic-specific, data-analysis, analytics

参考答案摘要

Aggregate functions perform calculations on sets of rows and return a single value. For example, SUM adds up values, COUNT counts rows, AVG calculates the average, MAX finds the maximum, and MIN finds...

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