Find all duplicate rows in the table Employees, considering all columns.
Find all duplicate rows in the table Employees, considering all columns.
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: intellipaat, sql, topic-specific, sql, database
参考答案摘要
SELECT * FROM ( SELECT *, ROW_NUMBER() OVER ( PARTITION BY Employee_name, Age, Department, Salary ) AS rn FROM Intellipaat_Emp ) t WHERE rn > 1; copy
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