BuyFindarrow_forward

Database Systems: Design, Implemen...

12th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781305627482

Solutions

Chapter
Section
BuyFindarrow_forward

Database Systems: Design, Implemen...

12th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781305627482
Chapter 11, Problem 9P
Textbook Problem
1 views

Problems 7–32 are based on the ER model shown in Figure P11.7. Problems 7-10 are based on the following query:

SELECT P_CODE, P_PRICE
FROM PRODUCT
WHERE P_PRICE >= (SELECT AVG(P_PRICE) FROM PRODUCT);

What is the likely data sparsity of the P_PRICE column?

Program Plan Intro

Data sparsity:

The number of unique values a column could contain is referred as data sparsity. The data sparsity can be classified into two types and they are as follows:

  • Low sparsity:
    • When a column contains minimum number of unique values is called as low sparsity.
    • Consider the column named gender; gender can contain only two different values namely ‘male’ and ‘female’ and this is considered to be a low sparsity.
  • High sparsity:
    • When a column contains maximum number of unique values is called as low sparsity.
    • Consider the column named Birthdate; Birthdate can contain multiple different values and this is considered to be a high sparsity.

The appropriate use of index can be determined by knowing the sparsity.

Explanation of Solution

Data sparsity of the column “P_PRICE”:

  • The data sparsity for the column “P_PRICE” could contain high sparsity because the col...

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Chapter 11 Solutions

Database Systems: Design, Implementation, & Management
Show all chapter solutions
add
Ch. 11 - What are optimizer hints, and how are they used?Ch. 11 - What are some general guidelines for creating and...Ch. 11 - Most query optimization techniques are designed to...Ch. 11 - What recommendations would you make for managing...Ch. 11 - What does RAID stand for, and what are some...Ch. 11 - SELECT EMP_LNAME, EMP_FNAME, EMP_AREACODE, EMP_SEX...Ch. 11 - Problem 1 and 2 are based on the following query:...Ch. 11 - Using Table 11.4 as an example, create two...Ch. 11 - Problems 46 are based on the following query:...Ch. 11 - Problems 46 are based on the following query:...Ch. 11 - Problems 46 are based on the following query:...Ch. 11 - Problems 732 are based on the ER model shown in...Ch. 11 - Problems 732 are based on the ER model shown in...Ch. 11 - Problems 732 are based on the ER model shown in...Ch. 11 - Problems 732 are based on the ER model shown in...Ch. 11 - Problems 1114 are based on the following query:...Ch. 11 - Problems 1114 are based on the following query:...Ch. 11 - Problems 1114 are based on the following query:...Ch. 11 - Problems 1114 are based on the following query:...Ch. 11 - Problems 15 and 16 are based on the following...Ch. 11 - Problems 15 and 16 are based on the following...Ch. 11 - Problems 1721 are based on the following query:...Ch. 11 - Problems 1721 are based on the following query:...Ch. 11 - Problems 1721 are based on the following query:...Ch. 11 - Problems 1721 are based on the following query:...Ch. 11 - Problems 1721 are based on the following query:...Ch. 11 - SELECT P_CODE, P_DESCRIPT, P_PRICE, P.V_CODE,...Ch. 11 - Problems 2224 are based on the following query:...Ch. 11 - Problems 2224 are based on the following query:...Ch. 11 - Problems 25 and 26 are based on the following...Ch. 11 - Problems 25 and 26 are based on the following...Ch. 11 - Problems 27 and 28 are based on the following...Ch. 11 - Problems 27 and 28 are based on the following...Ch. 11 - Problems 2932 are based on the following query:...Ch. 11 - Problems 2932 are based on the following query:...Ch. 11 - Problems 2932 are based on the following query:...Ch. 11 - Problems 2932 are based on the following query:...

Additional Engineering Textbook Solutions

Find more solutions based on key concepts
Show solutions add
Convert the strength of selected materials given in the accompanying table from MPa to ksi, where 1000 lbf/in2 ...

Engineering Fundamentals: An Introduction to Engineering (MindTap Course List)

Convert 10,000 ft-lbf of energy into BTU, Joules, and kilojoules.

Fundamentals of Chemical Engineering Thermodynamics (MindTap Course List)

If your motherboard supports ECC DDR3 memory, can you substitute non-ECC DDR3 memory?

A+ Guide to Hardware (Standalone Book) (MindTap Course List)

Name types of wireless transmission media.

Enhanced Discovering Computers 2017 (Shelly Cashman Series) (MindTap Course List)

What types of information should be covered in a respirator training program?

Welding: Principles and Applications (MindTap Course List)

What type of scanning might identify that Telnet is running on a server?

Network+ Guide to Networks (MindTap Course List)