INNER JOIN vs LEFT JOIN and when LEFT JOIN behaves like INNER JOIN

INNER JOIN vs LEFT JOIN and when LEFT JOIN behaves like INNER 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, dbms, topic-specific, database

参考答案摘要

An INNER JOIN returns only rows that exist in both tables. A LEFT JOIN returns all rows from the left table, even if there is no matching row on the right side. However, a LEFT JOIN can accidentally b...

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