For each customer: CID (unique), CName (unique), For each manager: MID (unique), MFullName (composed of MFName and MLName), MBonus (not every manager has a bonus), MSalary, multiple MPhones For each employee: EID (unique), EName Each hotel has one or more rooms
For each customer: CID (unique), CName (unique), For each manager: MID (unique), MFullName (composed of MFName and MLName), MBonus (not every manager has a bonus), MSalary, multiple MPhones For each employee: EID (unique), EName Each hotel has one or more rooms
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
I need an ER diagram for the following information
- For Hotel: HotelID (unique) and ANoOfRooms (number of rooms in the hotel)
- For Hotel: HotelID (unique) and ANoOfFloors (number of floors in the hotel)
- For each Room: RNO (partially unique, unique in the hotel) and ANoOfBeds (number of beds in the room)
- For each customer: CID (unique), CName (unique),
- For each manager: MID (unique), MFullName (composed of MFName and MLName), MBonus (not every manager has a bonus), MSalary, multiple MPhones
- For each employee: EID (unique), EName
- Each hotel has one or more rooms
- Each room is located on exactly one floor
- Each room is cleaned by one or two employees
- Each employee cleans 1-3 floors
- Each employee cleans 6-15 rooms
- Each customer has one or many rooms
- Each customer has booked one or mamy rooms
- Each room is booked by a customer or no one
- Each floor has one or many rooms
- Each manager resides in exactly one room
- Each manager resides on exactly one floor
- Each hotel either has one manager residing in it or no manager residing in it
- Each salestransaction has exactly one customer
- Each customer has one or many salestransactions
- Each salestransactions occurred at one hotel
- Each hotel had multiple salestransactions
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