Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

In each case explain your answer briefly but clearly. Also decide whether question 1 and question 2: -is already expressed in the Enhanced Entity-Relationship model

In each case explain your answer briefly but clearly.

Also decide whether question 1 and question 2:

-is already expressed in the Enhanced Entity-Relationship model (EER) below

- is not already expressed in the EER model model below but could be expressed using only features of an EER model.

-cannot be expressed in the EER model using only features of an EER model.

Question 1) A table order originates from exactly one table of one restaurant.

Question 2) Two table orders dispatched at (roughly) the same time must originate from different tables.

image text in transcribed

Receives_by_phone Restaurant hone_line phone num Contains dateTi me billingNo total Order Originates from Table optional.orh number PhoneOrder TableOrder street wai ter deliveryAddress postcode city

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Big Data, Mining, And Analytics Components Of Strategic Decision Making

Authors: Stephan Kudyba

1st Edition

1466568704, 9781466568709

More Books

Students also viewed these Databases questions