What is an execution plan (EXPLAIN)?

What is an execution plan (EXPLAIN)?

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: hard

标签: interviewbit, sql, topic-specific, database

参考答案摘要

An execution plan describes how a database engine executes a SQL query. It shows the sequence of operations the optimizer chooses to retrieve data, such as table scans, index lookups, joins, and filte...

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