Examine the description of the product_details table:
Which two statements are true?
PRODUCT _ic can be assigned the PRIMARY KEY constraint.
PRODUCT _price contains the value zero by default if no value is assigned to it.
PRODUCT _price can be used in an arithmetic expression even if it has no value stored in it.
EXPIRY_ DATE contains the sysdate by default if no date is assigned to it.
PRODUCT_NAKE cannot contain duplicate values.
EXPIRY_ DATE cannot be used in arithmetic expressions.
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