Question: SQL uses a three - valued logic: True, False and Unknown. What are the results of the following three Boolean operations: True AND Unknown, True

SQL uses a three

-

valued logic: True, False and Unknown. What are the results of the following three Boolean operations: True AND Unknown, True OR Unknown, NOT Unknown?

Group of answer choices

True, True, Unknown

Unknown, Unknown, False

Unknown, True, True

Unknown, True, Unknown

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