Question: When you use UNION, the _ _ _ _ _ _ _ _ of the tables output from the queries involved in the UNION must

When you use UNION, the ________ of the tables output from the queries involved in the UNION must be compatible.
When you use UNION, the ________ of the tables output from the queries involved in the UNION must be compatible.
records
data types of the columns
rows
names of the columns

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