Transfer the following verbal description into a unified ERM: A person (P-ID) is either an employee or a manager. Persons work for one or more companies (C-ID). Companies usually employ at least one person. A manager manages one department (Dept-ID), which is assigned to one company, while companies have several departments.

Database Systems: Design, Implementation, & Management
12th Edition
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Carlos Coronel, Steven Morris
Chapter2: Data Models
Section: Chapter Questions
Problem 15P
icon
Related questions
Question

Transfer the following verbal description into a unified ERM:

  1. A person (P-ID) is either an employee or a manager.
  2. Persons work for one or more companies (C-ID). Companies usually employ at least one person.
  3. A manager manages one department (Dept-ID), which is assigned to one company, while companies have several departments.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Database Environment
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781305627482
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Oracle 12c: SQL
Oracle 12c: SQL
Computer Science
ISBN:
9781305251038
Author:
Joan Casteel
Publisher:
Cengage Learning