What is a Subquery? What are its types?

What is a Subquery? What are its types?

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, sql, topic-specific, database

参考答案摘要

A subquery is a query within another query, also known as a nested query or inner query . It is used to restrict or enhance the data to be queried by the main query, thus restricting or enhancing the ...

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