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?

What does tcp/ip stand for, What does TCP/IP stand for? TCP/IP is a Pro...

What does TCP/IP stand for? TCP/IP is a Protocol type basically it is known by Transmission Control Protocol/Internet Protocol

Payrol, design a payrol (non GUI)

design a payrol (non GUI)

Java Project, How to start a java project? how to draw a flow chart?

How to start a java project? how to draw a flow chart?

I want multiplayer backgammon game, I want Multiplayer Backgammon Game P...

I want Multiplayer Backgammon Game Project Description: We want a multiplayer backgammon as short as well as long one. It should be free and on money also. The games fronted

Assignment, h there, i want you please to make an full assignment due in Fr...

h there, i want you please to make an full assignment due in Friday :)

Can a human doctor be replaced through an expert system, Can a human doctor...

Can a human doctor be replaced through an Expert System? Give reasons to support your answer. Expert System is a computer system that simulates the knowledge and expertise of a

What is jdbc exactly, What is JDBC exactly? Describe the steps required to ...

What is JDBC exactly? Describe the steps required to execute a SQL query using JDBC.

JSP and servlet, I just finished a small tutorial on JSP and servlet now I...

I just finished a small tutorial on JSP and servlet now I was looking for some assignments so that I can try my hands on

What is the set interface, What is the Set interface? A Set interface i...

What is the Set interface? A Set interface is collection of element that can't be duplicated. Set interface comprise methods inherited from collection. It provides method

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