Why indexing in SQL is useful ?

Why indexing in SQL is useful ?

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, infosys, company-specific

目标公司: Infosys

参考答案摘要

A SQL index is a quick lookup table that helps to find records that are frequently searched by a user. An index is fast, small, and optimized for quick look-ups. It is useful for establishing a connec...

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