Question 2Figure 2 shows an ER schema for a database that may be used to keep track of Pizza orderingsystem. Map this schema into a relational schema, and specify all primary keys and foreignkeys.CityStreetLast_nameDelivery_date_timeHouse_numberOrder_date_timeFirst_nameTotal_priceOrder idemailCustomer_idOrder_Status(0,N)(1,1)(1,N)CustomerplacesOrder(1,1)Phone_numberhas(1, N)finalize(1,1)PriceNon_Pizza_idAmountNamehasNameAmountPizza|(1}1)Non_PizzaPrice(0,NPizza_id(0.N)(1,N)Employee_idNeedsNeedsEmployee(1,N)(1,N)ingredient_idUser_namePasswordIngredientsNamePriceER Diagram: Online Pizza Ordering System

Answer in step2 Note--since in E-R diagram cannot show foreign key so we are giving possible foreign…

Answered: Figure 2 shows an ER schema for a…

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

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DATABSE
Q3. Suppose you are given the following business rules to form the basis for a database design. The database must enable the manager of a company dinner club to mail invitations to the club's members, to plan the meals, to keep track of who attends the dinners, and so on. Each dinner serves many members, and each member may attend many dinners. A member receives many invitations, and each invitation is mailed to many members. A dinner is based on a single entree, but an entree may be used as the basis for many dinners. For example, a dinner may be composed of a fish entree, rice, and corn. Or the dinner may be composed of a fish entree, a baked potato, and string beans. Because the manager is not a database expert, the first attempt at creating the database uses the structure shown in the table below: Attribute Name MEMBER_NUM MEMBER_NAME MEMBER_ADDRESS MEMBER_CITY MEMBER_ZIPCODE INVITE_NUM INVITE_DATE ACCEPT_DATE DINNER_DATE DINNER_ATTENDED DINNER_CODE DINNER_DESCRIPTION Sample Value…
A taxi company would like to provide an online service for customers to book a trip and for taxi drivers to check their upcoming trips. A database needs to be created to store customer data (name, address, email, telephone number) and trip information (pick up and drop off address and pick up time and date). Furthermore, your database should contain driver information (name and license plate). Each trip must be assigned to exactly one driver (and trips for a driver must not overlap). Customers who are not registered yet need to register (providing their address, phone number, email address, and credit card information). A registered customer should be able to book a trip, i.e. provide the pick-up address and time as well as the drop-off address via a graphical user interface. Customers should also be able to view their trips and cancel them if needed. All these operations are only possible after a customer signs in (which means they must be registered). Each new trip must be confirmed…

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Figure 2 shows an ER schema for a database that may be used to keep track of Pizza ordering system. Map this schema into a relational schema, and specify all primary keys and foreign keys.