What causes N+1 queries in ORM like Hibernate and how do you fix it?

What causes N+1 queries in ORM like Hibernate and how do you fix it?

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, java, topic-specific

参考答案摘要

N+1 queries happen when a parent list is loaded first and child data is fetched one by one. This creates many unnecessary database calls. It usually occurs with lazy loading. To fix it, I use fetch jo...

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