Computer Science: An Overview: Global Edition (12th Edition)

Published by Pearson Higher Education
ISBN 10: 1292061162
ISBN 13: 978-1-29206-116-0

Chapter 9 - Database Systems - Chapter Review Problems - Page 453: 37

Answer

See the explanation

Work Step by Step

To translate the given SQL statement into a sequence of SELECT, PROJECT, and JOIN operations, you would break it down step by step: 1. SELECT: Choose the columns you want to retrieve. In this case, it's JobTitle from the Job table. 2. PROJECT: Perform any necessary projection operations to ensure the selected columns are unique. 3. JOIN: Combine the tables based on the specified conditions. So the sequence of operations would be: 1. SELECT JobTitle 2. PROJECT (to ensure uniqueness) 3. JOIN Assignment and Job on Assignment.Job1Id = Job.JobId 4. Filter the results where Assignment.EmplId = '34Y70' Here's the sequence in SQL: ```sql SELECT DISTINCT Job.JobTitle FROM Assignment JOIN Job ON Assignment.Job1Id = Job.JobId WHERE Assignment.EmplId = '34Y70'; ```
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.