Illustrate normalization? , JAVA Programming

Assignment Help:

 

Normalization is a design technique that is mostly used as a guide in designing relational databases. Normalization is necessary a two step process that gives data into tabular form by removing repeating groups and then replaces duplicated data from the relational tables.

Redundant data wastes disk space and builds maintenance problems. If data that allows in more than one place must be modified, the data must be modified in exactly the same way in all locations which is prone to errors and time consuming. A modification to a customer address is much simpler to do if that data is stored only in the Customers table and now in the database.

Inconsistent dependency is a database structure that makes certain assumptions about the location of data. As, while it is intuitive for a user to look in the Customers table for the address of a particular client, it may not create sense to look there for the salary of the employee who invokes on that customer. The employee's salary  is  exist  to,  or  dependent  on,  the  employee  and  thus  could  be  placed  to  the  Employees  table. Inconsistent dependencies can create data difficult to access because the path to find the data cannot be logical, or may be
broken or missing.

 

 

1546_Normalisation.png


Related Discussions:- Illustrate normalization?

Develop news feed android app design template, Project Description: You ...

Project Description: You should give A Working, Sample Android .apk Project and Java source code Original Photoshop PSD that I can edit and customize to fit my needs All S

Listening for roster and presence changes, The typical use of the roster cl...

The typical use of the roster class is to display a tree view of groups and entries along with the current presence value of each entry. As an example, see the image showing a Rost

What does a simple spring application contain, These applications are like ...

These applications are like any Java application. They are made up of not many classes, each performing a particular purpose within the application. But these classes are configure

What is arpanet and who developed it, What is ARPANET and who developed it?...

What is ARPANET and who developed it? ARPANET stands for Advanced Research Projects. The initial reasons were to communicate along with and share computer resources between mainl

Ajax- html- xml- css and tomcat used in java, AJAX- HTML- XML- CSS and  To...

AJAX- HTML- XML- CSS and  Tomcat used in Java: Project Title: Zee Ads   Role                       : Developer Domain                  : Web Ads Environment

Cadence design systems, Cadence Design Systems:   Role Working ...

Cadence Design Systems:   Role Working on tickets including debugging of unix based applications Installations of unix based tools/utlity Installation

Need to develop a small android app, Need to develop a Small Android App us...

Need to develop a Small Android App using Text to speech and Speech to Text feature. Project Description: When the Android App Opens, It will connect to Windows Azure cloud,

Explain choosing font faces and sizes in java awt packages, Explain Choosin...

Explain Choosing Font Faces and Sizes in java AWT packages? Choosing a font face is simple. First you create a new Font object. Then you call g.setFont(Font f). To instantiate

Student, what are Objects and Fields in java

what are Objects and Fields in java

Converting strings to numeric primitive data types, Converting Strings to N...

Converting Strings to Numeric Primitive Data Types To convert a string which is containing digits to a primitive data type, wrapper classes can help. parseXxx method can be u

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd