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Oracle Datbase 12c SQL Exam Questions

Oracle

Oracle Datbase 12c SQL

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Question 23:

View the exhibit and examine the structure of the EMPLOYEES table. 
image
You want to display all employees and their managers having 100 as the MANAGER_ID. You want the output in two columns: the first column would have the of the managers and the second column would have LAST_NAME of the employees. LAST_NAME - Which SQL statement would you execute? 

Answer options:

A. SELECT m.last_name "Manager", e.last_name "Employee" FROM employees m JOIN employees e ON m.employee_id = e.manager_id WHERE m.manager_id = 100;
B. SELECT m.last_name "Manager", e.last_name "Employee" FROM employees m JOIN employees e ON m.employee_id = e.manager_id WHERE e.manager_id = 100;
C. SELECT m.last_name "Manager", e.last_name "Employee" FROM employees m JOIN employees e ON e.employee_id = m.manager_id WHERE m.manager_id = 100;
D. SELECT m.last_name "Manager", e.last_name "Employee" FROM employees m JOIN employees e WHERE m.employee_id = e.manager_id AND e.manager_id = 100