Homework Help is Here – Start Your Trial Now!
Engineering
Computer Science
The database used for this question is a very simple one with the following schema: (Primary keys are bold, foreign keys are underlined) CUSTOMER (CustID, FirstName, LastName, City, Phone, Email) INVOICE (InvoiceNumber, CustID, Date) INVOICE_ITEM(InvoiceNumber, ItemNumber, Quantity) ITEM (ItemNumber, ItemName, UnitPrice) When a customer makes a purchase, an invoice is created. The invoice may be for many items. For example, in a single purchase, a customer might buy 10 Back Scratchers, 4 Hair Removers and a Dog Lead. Provide relational algebra (NOT SQL) queries to find the following information. Each question is worth 2 marks. NOTE: You can use the symbolss, P, etc., or the words’ PROJECT’, ‘RESTRICT’etc.as you prefer. You do not need to try to make efficient queries – just correct ones. Where you use a join, always show the join condition. List the first and last names of Customers who come from the City named Perth. List the first and last names of customers who had transactions on 1st August 2020. List the price of the item called “Back Scratcher” List the first and last names of any customer who has purchased more than 10 “Back Scratchers” in a single transaction. List the names and quantities of items purchased on 1st August 2020 by the customer Peter Simpson. List the dates on which Homer Griffin made purchases. List the first and last names of customers who have bought “Back Scratcher” or “Hair Remover” List the first and last names of customers who have bought “Back Scratcher” but have not bought “Hair Remover” List the first and last names of customers who have bought “Back Scratcher” and “Hair Remover” List the first and last names of any customers who have bought all of the items listed in the Item relation. (This does not need to be as part of a single purchase).

The database used for this question is a very simple one with the following schema: (Primary keys are bold, foreign keys are underlined) CUSTOMER (CustID, FirstName, LastName, City, Phone, Email) INVOICE (InvoiceNumber, CustID, Date) INVOICE_ITEM(InvoiceNumber, ItemNumber, Quantity) ITEM (ItemNumber, ItemName, UnitPrice) When a customer makes a purchase, an invoice is created. The invoice may be for many items. For example, in a single purchase, a customer might buy 10 Back Scratchers, 4 Hair Removers and a Dog Lead. Provide relational algebra (NOT SQL) queries to find the following information. Each question is worth 2 marks. NOTE: You can use the symbolss, P, etc., or the words’ PROJECT’, ‘RESTRICT’etc.as you prefer. You do not need to try to make efficient queries – just correct ones. Where you use a join, always show the join condition. List the first and last names of Customers who come from the City named Perth. List the first and last names of customers who had transactions on 1st August 2020. List the price of the item called “Back Scratcher” List the first and last names of any customer who has purchased more than 10 “Back Scratchers” in a single transaction. List the names and quantities of items purchased on 1st August 2020 by the customer Peter Simpson. List the dates on which Homer Griffin made purchases. List the first and last names of customers who have bought “Back Scratcher” or “Hair Remover” List the first and last names of customers who have bought “Back Scratcher” but have not bought “Hair Remover” List the first and last names of customers who have bought “Back Scratcher” and “Hair Remover” List the first and last names of any customers who have bought all of the items listed in the Item relation. (This does not need to be as part of a single purchase).

A Guide to SQL
A Guide to SQL
9th Edition
ISBN:9781111527273
Author:Philip J. Pratt
Publisher:Philip J. Pratt
Chapter2: Database Design Fundamentals
Section: Chapter Questions
Problem 11RQ
See similar textbooks
icon
Related questions
Question

The database used for this question is a very simple one with the following schema: (Primary keys are bold, foreign keys are underlined)

 

CUSTOMER (CustID, FirstName, LastName, City, Phone, Email)

INVOICE (InvoiceNumber, CustID, Date)

INVOICE_ITEM(InvoiceNumber, ItemNumber, Quantity)

ITEM (ItemNumber, ItemName, UnitPrice)

 

When a customer makes a purchase, an invoice is created. The invoice may be for many items. For example, in a single purchase, a customer might buy 10 Back Scratchers, 4 Hair Removers and a Dog Lead.

Provide relational algebra (NOT SQL) queries to find the following information. Each question is worth 2 marks.

NOTE:

  • You can use the symbolss, P, etc., or the words’ PROJECT’, ‘RESTRICT’etc.as you prefer.
  • You do not need to try to make efficient queries – just correct ones.
  • Where you use a join, always show the join condition.

 

  1. List the first and last names of Customers who come from the City named Perth.
  2. List the first and last names of customers who had transactions on 1st August 2020.
  3. List the price of the item called “Back Scratcher”
  4. List the first and last names of any customer who has purchased more than 10 “Back Scratchers” in a single transaction.
  5. List the names and quantities of items purchased on 1st August 2020 by the customer Peter Simpson.
  6. List the dates on which Homer Griffin made purchases.
  7. List the first and last names of customers who have bought “Back Scratcher” or “Hair Remover”
  8. List the first and last names of customers who have bought “Back Scratcher” but have not bought “Hair Remover”
  9. List the first and last names of customers who have bought “Back Scratcher” and “Hair Remover”

List the first and last names of any customers who have bought all of the items listed in the Item relation.  (This does not need to be as part of a single purchase).

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Transaction Processing
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Recommended textbooks for you
A Guide to SQL
A Guide to SQL
Computer Science
ISBN:
9781111527273
Author:
Philip J. Pratt
Publisher:
Course Technology Ptr
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781305627482
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781285196145
Author:
Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:
Cengage Learning
Principles of Information Systems (MindTap Course…
Principles of Information Systems (MindTap Course…
Computer Science
ISBN:
9781305971776
Author:
Ralph Stair, George Reynolds
Publisher:
Cengage Learning
Principles of Information Systems (MindTap Course…
Principles of Information Systems (MindTap Course…
Computer Science
ISBN:
9781285867168
Author:
Ralph Stair, George Reynolds
Publisher:
Cengage Learning
SEE MORE TEXTBOOKS