Question: A relation can have several candidate keys. Irue False Question 2 (10 points) A relation has only one primary key, a candidate key designed as

A relation can have several candidate keys. Irue False Question 2 (10 points) A relation has only one primary key, a candidate key designed as the primary one. True False Question 3 (10 points) A foreign key in a relation R1 is a candidate key in a relation R2. True False Question 4 (10 points) A check constraint is inter-relational. True False Question 5 (10 points) A foreign key constraint is intra-relational. True False

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