Question 1 Given a table with the structure: EMPLOYEE (EmpNo, Name, Salary, HireDate), which of the following is not a valid SQL command? SELECT HireDate, COUNT(*) FROM EMPLOYEE WHERE Salary 30000; SELECT HireDate, COUNT(*) FROM EMPLOYEE GROUP BY HireDate; SELECT COUNT(EmpNo) FROM EMPLOYEE; SELECT COUNT() FROM EMPLOYEE WHERE Salary 30000; Question 2 As the voting age is 18, what should happen if the following command is issued: INSERT INTO VOTERS (VoterID, LastName, FirstName, DOB, Age, CDid) VALUES(04503,'Smith',John','23-mar-1991', 17,'GA01): Operation is not allowed. Check constraint violated Operation is allowed. Operation is not allowed. SQL statement is malformed Operation is not allowed. Primary key constraint violated. Operation is not allowed. Referential integrity constraint violated