PL/SQL Oracle 12c. Write a function which inputs two dates and compares the two dates. The function returns -1, 0, or +1 depending on whether the 1st date is less, equal to, or greater than the 2nd date. (The time component is not to be considered here.)

Purpose: To compare two dates

Input Parameters: 2 dates

Input/Output parameters: None

Output Parameters: None

Return value: Integer(-1, 0, +1)

Preconditions: Dates in standard format

Postconditions: Dates unchanged. Comparison Value Returned.

- Write a simple driver to call and test procedure

- Test each of the three different possible comparison values.