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?

Android App Clone, Hello, My friend Roshan from India told me that you pro...

Hello, My friend Roshan from India told me that you provide a high quality programming service which is why I''m here. I would like you to make a clone of an android app the app

A new dynamic website, A NEW Dynamic Website I have the subsequent requi...

A NEW Dynamic Website I have the subsequent requirement which needs to be designed in 30 days (Max). 1) Construct a website which is a dynamic, means allow me to change conte

Write a program in javascript that will read in an xml file, Write a progra...

Write a program in Javascript that will read in an XML file. This file will contain details of devices maintained by the IT department of an organisation including an ID number, de

Android app implemented on a website, iPhone /Android app implemented on a ...

iPhone /Android app implemented on a website Project Description: I need someone to implement an iPhone/Android app onto a website page, So users can be able to use the Ap

We want the best java programmer, We want the best java programmer availabl...

We want the best java programmer available. Project Description: Java | Portlets| JSF Liferay (not essential but is preferable) Big Data and User online tools. Multilin

In programming what is an object, In programming, what is an object? Ob...

In programming, what is an object? Object is a named collection of properties (data and state) & methods (instructions, behaviour). Objects are key to understanding object-orie

Write code in a java for automaton distributed in class, Write a code in a ...

Write a code in a c++/java  for the automaton distributed in the class that accepts keywords(cat,bat,cab). Create an input file along with these words may be two or three copies of

What is the difference between internet and intranet, What is the differenc...

What is the difference between Internet and Intranet ? Intranet and internet are 2 domains which are extremely a like but frequent segregated in order to manage security. Inter

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