1Z0-171 Exam Question 26
What will the following query do?
SELECT employee_id, salary
FROM employees
WHERE salary > (SELECT AVG(salary) FROM employees);
SELECT employee_id, salary
FROM employees
WHERE salary > (SELECT AVG(salary) FROM employees);
1Z0-171 Exam Question 27
What is a sequence in Oracle Database?
1Z0-171 Exam Question 28
Which SQL clause is used to specify the source table in a query?
1Z0-171 Exam Question 29
Which command revokes a user's privilege to update a table?
1Z0-171 Exam Question 30
Which clause is used to allow a user to grant a privilege to others?
