/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Problem 19 Discuss the types of modificatio... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 12: Problem 19

Discuss the types of modifications that may be applied to the logical database design of a relational database.

Short Answer

Expert verified
Changes in logical database design include normalization (removing redundancy), denormalization (combining tables), assuring data integrity, and performance tuning (boosting performance through setting indexes, partitioning, etc).

Step by step solution

01

Define Logical Database Design

Logical Database design is the process of constructing a model of the data used in an enterprise, independent of all physical considerations. It's basically a representation of data, structured in such a way that it does not depend on the DBMS system.
02

Explain Relational Database

A relational database is a type of database that uses a structure that allows us to identify and access data in relation to other pieces of data in the database. Tables are used to hold information about the objects to be represented in the database.
03

Discuss Types of Modifications

The modifications in logical database design involve: 1. Normalization: This is a process that eliminates redundant data from relational databases. It improves data integrity by having a single point of maintenance. 2. Denormalization: The process involves blending tables to speed up data retrieval in a relational database. It is done after normalization and helps to boost performance. 3. Data Integrity: It ensures that the data remains accurate and consistent over its entire life-cycle. This can include using constraints, triggers etc. 4. Performance tuning: This can be a modification made to increase the database's performance. It includes creating indexes, partitioning, data compression etc.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Compare and contrast the two main approaches to conceptual schema design.

Why is it important to use an implementation-independent data model during conceptual schema design? What models are used in current design tools? Why?

Why is it important to design the schemas and applications in parallel?

What functions do the typical database design tools provide?

Discuss the characteristics that a data model for conceptual schema design should possess.
See all solutions

Recommended explanations on Computer Science Textbooks

Computer Organisation and Architecture

Read Explanation

Computer Network

Read Explanation

Theory of Computation

Read Explanation

Issues in Computer Science

Read Explanation

Algorithms in Computer Science

Read Explanation

Game Design in Computer Science

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.