Write a query to swap the values in a column, for example, changing all ‘Male’ to ‘Female’ and vice versa in the column gender.

Write a query to swap the values in a column, for example, changing all ‘Male’ to ‘Female’ and vice versa in the column gender.

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

-- Swap Male to Female and Female to Male UPDATE Intellipaat_Emp SET Gender = CASE WHEN Gender = 'Male' THEN 'Female' WHEN Gender = 'Female' THEN 'Male' ELSE Gender -- Keep other values unchanged END;...

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