Relational Database Normalization Basics

Top Tutorials

New Tutorials

Submit

Login

Register

Tutorial Detail

• Total Hits: 3364

• Average Rating :
  

•  

• Total Votes: 42 votes

• Category: MS Access/Basic Concepts

• Submitted on: 2008-04-15 06:44:20

• Submitted By: Shekhar

• Set as Favorite

Description:

Normalization is the process of organizing data in a database. This includes creating tables and establishing relationships between those tables according to rules designed both to protect the existing data (accidental deletions or amendments) and to make the database more flexible by eliminating redundancy and inconsistent dependency.

Redundant data wastes disk space and creates database maintenance problems. If data that exists in more than one place must be changed, the data must be changed in exactly the same way in all locations. A customer address change is much easier to implement if that data is stored only in the Customers table and nowhere else in the database.    More detail...

Rating Detail

Stars	Percentage	Total Vote
	14.29%	6
	14.29%	6
	14.29%	6
	16.67%	7
	26.19%	11

Caste Your Vote

Rating	Selection	Guidelines
Poor:		Very disappointing, useless.
Fair:		Below average, disappointing but not useless.
Good:		About average in its class.
Very Good:		Above average for its category.
Excellent:		One of the best Tutorials in its category.

---