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?

Program to calculate the value into hours and minutes, Specifically, you'll...

Specifically, you'll create a program that will hold minutes worked and assign a value. Calculate the value into hours and minutes. Display the result as shown in Figure 2. Reme

Want a anti iframe breaker, Want a ANTI Iframe Breaker Project Descripti...

Want a ANTI Iframe Breaker Project Description: I want an ANTI Iframe Breaker code made, so that if I'm iframing a site, that contains JavaScript, flash or otherwise, to forc

Tictactoe, write complete application to play game tictactoe

write complete application to play game tictactoe

Calling the function, You may call function from any other place into your ...

You may call function from any other place into your JavaScript code. After the function is executed, the control goes back to other script which called it.  alert('Example 1: t

Continue statement in javascript, It terminates execution of the block of s...

It terminates execution of the block of statements in while or for loop & continues execution of the loop along with the next iteration. On the contrary to the break statement, con

Why do we need wrapper classes, Why do we need wrapper classes? It is s...

Why do we need wrapper classes? It is sometimes simpler to deal with primitives as objects. Moreover most of the collection classes keep objects and not primitive data types. A

Homework, Pick your favorite geometry formula (e.g., area of a square, peri...

Pick your favorite geometry formula (e.g., area of a square, perimeter of a triangle …) and implement it in Java. Demonstrate your code compiles and runs without issue (You can use

What is scope of variable in java, What is Scope of Variable ? Space in...

What is Scope of Variable ? Space in that a variable is effective is called as the scope of a variable. In other words we can say area where that variable is available for the

I need social mobile application, Project Description: I'm using a php s...

Project Description: I'm using a php script called phpfox on my site its work as social network . So I need is to use this script as CMS for my application. What users wil

How we can changing the implementation, How we can changing the Implementat...

How we can changing the Implementation ? Suppose the Car class requires to be used in a simulation of New York City traffic in that each actual car on the street is represente

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