How to determine which records in a table are duplicates in the most time-effective method possible?

How to determine which records in a table are duplicates in the most time-effective method possible?

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: easy

标签: interviewbit, as400, topic-specific, ibm

参考答案摘要

When searching for duplicate records inside a database, using the DISTINCT keyword is the most efficient way that may be used. Since this keyword will only return values that are fully unique, it will...

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