What is an Index? Explain its different types.
What is an Index? Explain its different types.
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, sql, topic-specific, database
参考答案摘要
A database index is a data structure that provides a quick lookup of data in a column or columns of a table. It enhances the speed of operations accessing data from a database table at the cost of add...
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