Question: When you code a union that combines two result sets, which of the following is not true? Group of answer choices The corresponding columns in

When you code a union that combines two result sets, which of the following is not true?
Group of answer choices
The corresponding columns in the result sets must have compatible data types.
The result sets may or may not have any duplicate rows.
The result sets must be derived from different tables.
Each result set must have the same number of columns.

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