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?

Point of Sale Terminal, The problem statement is pretty simple. We need a s...

The problem statement is pretty simple. We need a software implementation of a Point of Sale terminal at a typical store. The users of the system are the cashiers sitting at the sa

Create a jsp code to built an application, What is required to be done from...

What is required to be done from my programming is : I enter name,day(saturady or sunday),time( 10AM and 10PM) My program must then vaildate name,day and time. Name must only a

Differentiation jdk 1.02 event model and event delegation, Differentiation ...

Differentiation the JDK 1.02 event model and the event-delegation model introduced with JDK 1.1?

Design a program for robot, Assume all the obstacles are of height 4 units ...

Assume all the obstacles are of height 4 units and the blocks are of heights 1 (bottom), 2 (top), 1 and 2 (top) units respectively.  Complete the control() method of the RobotContr

How to returning multiple values from methods, How to Returning Multiple Va...

How to Returning Multiple Values From Methods ? It is not probable to return more than one value from techniques. You cannot, for example, return the licensePlate, speed and m

Recursive method to print all permutations of a string, Objectives _ Cre...

Objectives _ Creating and compiling a simple program _ Designing classes _ Use of recursive algorithms _ Learn basic combinatorics   Task: string permutation Writ

Describe invoking methods in java, Describe Invoking Methods in java? c...

Describe Invoking Methods in java? class Car { String licensePlate = ""; // e.g. "New York 543 A23" double speed = 0.0; // in kilometers per hour double maxS

OOP, differentiate between states and behaviors of n object

differentiate between states and behaviors of n object

What is rmi, RMI is a set of APIs that permits to build distributed applica...

RMI is a set of APIs that permits to build distributed applications. RMI uses interfaces to explain remote objects to turn local method invocations into remote method invocations.

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