Q. Assigning a value to a collection element can cause exceptions, such as
a. If the subscript is NULL or is not convertible to the right datatype, PL/SQL raises the predefined exception VALUE_ERROR. Usually, the subscript must
b. If the subscript refers to an uninitialized element, PL/SQL raises SUBSCRIPT_BEYOND_COUNT.
c. If the collection is atomically null, PL/SQL raises COLLECTION_IS_NULL.
d. All mentioned above
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