In Teradata, what is the purpose of using CASE Expression?

In Teradata, what is the purpose of using CASE Expression?

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: interviewbit, teradata, topic-specific, data-warehouse

参考答案摘要

When a CASE expression is used, each row is compared with a condition or WHEN clause, and the result of the first match is returned. Else, the result from the ELSE clause will be returned if there are...

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