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Post #3168 542
🔟 What is the difference between UNION and JOIN?

Sample Answer:

"JOIN combines columns from different tables based on a related key.

UNION combines rows from the results of two SELECT statements with compatible column structures.

For example, if I want to combine customer information with order information, I would typically use a JOIN. If I want to append two similar datasets containing the same type of records, I might use UNION."

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