Download Oracle Datbase 12c SQL.1z0-071.TestKing.2018-10-23.112q.tqb

Vendor:	Oracle
Exam Code:	1z0-071
Exam Name:	Oracle Datbase 12c SQL
Date:	Oct 23, 2018
File Size:	10 MB

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Demo Questions

Examine the structure of the EMPLOYEES table.

There is a parent/child relationship between EMPLOYEE_ID and MANAGER_ID.

You want to display the last names and manager IDs of employees who work for the same manager as the employee whose EMPLOYEE_ID is 123.

Which query provides the correct output?

SELECT e.last_name, m.manager_id
FROM employees e RIGHT OUTER JOIN employees m
on (e.manager_id = m.employee_id)
AND e.employee_id = 123;
SELECT e.last_name, m.manager_id
FROM employees e LEFT OUTER JOIN employees m
on (e.employee_id = m.manager_id)
WHERE e.employee_id = 123;
SELECT e.last_name, e.manager_id
FROM employees e RIGHT OUTER JOIN employees m
on (e.employee_id = m.employee_id)
WHERE e.employee_id = 123;
SELECT m.last_name, e.manager_id
FROM employees e LEFT OUTER JOIN employees m
on (e.manager_id = m.manager_id)
WHERE e.employee_id = 123;

Correct answer: D

Which normal form is a table in if it has no multi-valued attributes and no partial dependencies?

second normal form
first normal form
third normal form
fourth normal form

Correct answer: A

Explanation:

References:https://blog.udemy.com/database-normal-forms/

References:

https://blog.udemy.com/database-normal-forms/

Sales data of a company is stored in two tables, SALES1 and SALES2, with some data being duplicated across the tables. You want to display the results from the SALES1 table, which are not present in the SALES2 table.