What is a Self-Join?

What is a Self-Join?

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 self JOIN is a case of regular join where a table is joined to itself based on some relation between its own column(s). Self-join uses the INNER JOIN or LEFT JOIN clause and a table alias is used to...

本题提供 STAR 原则详细解答和技术解析，登录匠人学院学习中心即可查看完整答案。