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?

Medical services referral system - websphere administrator, Medical Service...

Medical Services Referral System:       Role : Websphere Administrator       Involved in Exposure to load balancing tools (BigIP, WAS plug-ins) and Siteminder.

How can we include images in a web page using html and java, How can we inc...

How can we include images in a web page using HTML and Java script? Image in HTML Image in Javascript Images in JavaScript could be manipulated in several ways using the buil

#tSutherland cohen line clipping algorithm, how do you write the code so th...

how do you write the code so the line will be clipped

How to creating arrays in java, How to Creating Arrays in java? Declari...

How to Creating Arrays in java? Declaring arrays merely says what type of values the array will hold. It does not form them. Java arrays are objects, and such as any other obje

Illustrate an example of static variables, Illustrate an example of static ...

Illustrate an example of static variables System. out .println("some text"); -- out is a static variable JOptionPane. showMessageDialog (null, "some text"); -- showMessageDi

Develop a geonetwork template, Develop a GeoNetwork Template Project Des...

Develop a GeoNetwork Template Project Description: Want a personalized GeoNetwork Template with the consideration of the logo included to this proposal and its colors. The ba

Package diagrams , To simplify complex class diagrams you may group classes...

To simplify complex class diagrams you may group classes into packages.

Display array elements by using for-each loop, Need assignment help , on th...

Need assignment help , on the topic “Demonstrate a console-program” Demonstrate a console-program to create an array of integers and Initialize the array and assign the values i

How many static initializers can there, How many static initializers can yo...

How many static initializers can you have ? As many as you want, but the static initializers and class variable initializers are implemented in textual order and may not refer

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