All of the following represent restrictions on functions, except ____.

A. Functions cannot modify any tables in Oracle8i and prior versions.
B. Functions cannot be used in a CHECK constraint or as a default value of a table column.
C. If used in a remote or parallel operation, no reading or writing of packaged variables is allowed.
D. If used in a SELECT,VALUES, or SET clause, the function cannot write values to packaged variables.


Answer: D

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