Answered: 1.- All products(items) in the shop…

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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Question

Given the relational database shop defined in the script below;

create database shop;
use shop;

create table users(
id int null auto_increment,
firstname varchar(255),
lastname varchar(255) not null,
primary key (id)
);

create table items(
id int null auto_increment,
name varchar(255),
price float,
primary key (id)
);

create table orders(
id int null auto_increment,
id_users int not null,
id_items int not null,
primary key (id),
foreign key (id_users) references users(id),
foreign key (id_items) references items(id)
);

write three SQL queries to answer the following questions

1.- All products(items) in the shop catalog; product code, name and price

2.- Products sold in the shop; product code, name and price and full name of buyer.

3.- Products in stock (not sold); product code, name and price

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Follow-up Question

Can you help me with this code? I need PK and Foreign key

ABC Company is a special online retail company that sells certain products to its customers. Products belong to three categories (technology, office supply and furniture). A customer can order multiple products from these
categories. When a customer places an order, a company sales representative will be assigned to process the order. Customer name, date of order, product(s) and the price(s) must be recorded. The following are the data for a
two-month period that need to be stored in the database:
Customers:
Last Name
Smith
Boden
Price
Burton
Wang
Products:
Product Name
3D Printer
X-Chair
Design Box
SonfiTalk
SonTour Desk
ArtBox
SonTour Chair
Recorded Orders:
Last Name
Smith
Price
Wang
Wang
Burton
Employees:
Last Name
Cuban
Gonzalez
Gonzalez
LU
Davis
First Name
Alex
Paul
Mary
Jane
Jeff
First Name
Alex
Mary
Jeff
Jeff
Jane
First Name
Mark
Roger
Dave
April
Sandy
Address
2 South ST
21 North St
Apt 3, 11th Ave
7 Maple Ave
20 Northern BLVD
Category
Technology
Furniture
Supply
Technology
Furniture
Supply
Furniture
Item
3D Printer
ArtBox
Design Box
ConTour, Chair
SonTour Desk
ConTour Chair
Hire Date
2018-11-20
2015-02-19
2017-06-30
2017-08-20
2019-02-12
Price
765.78
234.59
23.12
235.99
278.89
16.67
189.89
Y
N
Y
Y
Y
1
2
Quantity
3
1
1
1
Current
City
Newark
Bergen
NY
Tampa
LA
State
NJ
NJ
NY
FL
CA
Price
765.78
16.67
19.99
189.89
278.89
189.89
Salary
54555.78
45000.56
65332.77
58784.34
50020.45
Quantity
12
17
200
27
45
123
29
ZIP
07104
07047
10074
33605
90006
Age
27
38
45
37
34
Sale Time
2022-02-22
2022-03-17
2022-03-25
2022-03-21
2022-02-27
Tel
9174251243
9083421987
2128137658
8132341956
2134314356
Received
2020-01-23
2020-01-20
2020-02-12
2020-03-01
2020-03-12
2020-03-18
2020-02-15
Sale Rep
Mark
Sandy
Sandy
Mark
April
Manager
April
April
Dave
April

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