Which of the following Oracle SQL statements is not correct?

2018

Answer: C. SELECT * FROM Customers ORDER BY Country ASC, DESC CustomerName;

1. A.

   SELECT * FROM Customers
   ORDER BY Country;

2. B.

   SELECT * FROM Customers
   ORDER BY Country DESC;

3. C.

   SELECT * FROM Customers
   ORDER BY Country ASC, DESC CustomerName;

4. D.

   SELECT * FROM Customers
   ORDER BY Country ASC, CustomerName DESC;

Attempted by 900 students.