Create an ER diagram for the following requirements. Use cardinality ratio and participation constraints to indicate the relationship constraints. Design a database for a hotel chain. Each hotel has a name, code, address and a category (the number of stars). The total number of beds is known. Each hotel has many rooms, and each room has a number (unique within the hotel). Rooms may be of two types (single or double). Some rooms have TVs. For each employee, his/her employee number should be stored, as well as the name, address, home phone number, job position and salary. Each employee works for just one hotel. An employee manages at most one hotel, but not all employees are managers.

Create an ER diagram for the following requirements. Use cardinality ratio and participation constraints to indicate the relationship constraints. Design a database for a hotel chain. Each hotel has a name, code, address and a category (the number of stars). The total number of beds is known. Each hotel has many rooms, and each room has a number (unique within the hotel). Rooms may be of two types (single or double). Some rooms have TVs. For each employee, his/her employee number should be stored, as well as the name, address, home phone number, job position and salary. Each employee works for just one hotel. An employee manages at most one hotel, but not all employees are managers.

Principles of Information Systems (MindTap Course List)

13th Edition

ISBN:9781305971776

Author:Ralph Stair, George Reynolds

Publisher:Ralph Stair, George Reynolds

Chapter5: Database Systems And Big Data

Section: Chapter Questions

Problem 4SAT: The ______________ model is a simple but highly useful way to organize data into collections of...

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