Question: Match each statement below to Primary Key or Foreign key to indicate the type of key constraint being described. Question 1 4 options: Requires a
Match each statement below to Primary Key or Foreign key to indicate the type of key constraint being described.
Question options:
Requires a value to already exist in the column it references.
Cannot contain duplicate values.
Requires the column to have a unique value for each row.
Can contain NULL values.
Cannot contain NULL values.
Can contain duplicate values.
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