What is an execution plan and what do you check first?

What is an execution plan and what do you check first?

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, dbms, topic-specific, database

参考答案摘要

An execution plan shows how the database executes a query step by step. It tells you which indexes are used and how tables are accessed. The first thing to check is whether indexes are being used or i...

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