Question
3. (10 points) Consider the following SQL statement: SELECT last_name, department_id, AVG(salary) FROM hr.employees; a. Why will the above SQL statement return an error in
3. (10 points) Consider the following SQL statement:
SELECT last_name, department_id, AVG(salary)
FROM hr.employees;
a. Why will the above SQL statement return an error in Oracle Live SQL?
b. What can you do to fix it?
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Database System Concepts
Authors: Henry F. Korth, S. Sudarshan
4th Edition
978-0073523323, 0-07-255481-9, 73523321, 978-0072554816
