SQL Operator 3

A wildcard character '%'   indicates

How to select record from Emp  where 'ename' ends with 'i'  ?

Which of the following returns all rows from  queries; including duplicate rows ?

Which of the following is a set operator ?

Which of the following statements are correct ?

Which of  the following is correct to find the employees from EMP table who are not working in department 40

Which of  the following is correct to  Select all  employees from EMP  whose salary is between 2000 and 5000 ?

The NVL function will substitute 0 with null.

Which is not a logical operator ?