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?

How to get data from the velocity page in a action class, We can get the va...

We can get the values in the action classes by using data.getParameter("variable name described in the velocity page");

Java Thread, What is use of join in Java Threading

What is use of join in Java Threading

What is the basic difference between threads and processes? , A process is ...

A process is an execution of a code but a thread is a single execution sequence within the process. A process may contain multiple threads. A thread is sometimes named a lightweigh

Describe logical operators in java, Describe Logical Operators in Java ? ...

Describe Logical Operators in Java ? The relational operators you've learned so far ( , >=, !=, ==) are enough while you only required to check one condition. Therefore what if

Just i can told u looking for that for 6 mounth help me plea, how can i add...

how can i add script code in anouncement of a channel in a massneger the massnegr suport that but do not published it please help me please:((((((((((((((((((((((((((((((((((((((((

What is a pointcut, A pointcut is something that describes at what joinpoin...

A pointcut is something that describes at what joinpoints an advice should be applied. Advices can be applied at any joinpoint that is supported by the AOP framework. These Pointcu

Bi-lingual site for the mitzpe apiary, Bi-lingual site for the Mitzpe apiar...

Bi-lingual site for the Mitzpe apiary Project Description: We require a bi-lingual website built in 14 days. The Mitzpe Apiary is a new company that was started by local e

What is java bytecode, What is java Bytecode Java programs (Source code...

What is java Bytecode Java programs (Source code) are compiled into a form known as Java bytecodes. Java compiler reads Java language source (.java) files, translates source

Talent agency system, Talent agencies like ICM, CAA and Paradigm represent ...

Talent agencies like ICM, CAA and Paradigm represent writers, directors and actors (among other talent).  These agencies take in hundreds of millions of dollars a year collecting 1

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