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case when usage sql

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The usage of case when is to perform different operations according to different conditions in SQL queries. This topic provides you with articles, downloads, and course content related to case when for free download and experience.

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time：2023-07-17 15:45:31

Usage of case when in sql Case has two formats: simple case function and case search function. The simple case function is relatively simple to write, but compared with the case search function, there are some functional limitations, such as writing predicates.

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