What is the difference between 1NF ,2NF,and 3NF?? can someone explain with examples??

and what about the partial dependency and the transative dependency?? what are the difference?
Thank you

What kind of class are you taking? Like many fields, the teacher will (and should) expect different answers from a survey-class student, a student that is focused on a technology (if it is part of their major), and a professional. The answers that you get here will probably be professional, so they won't be suitable for handing in as though you'd written them yourself.

-PatP

The course that am taking is DATABASE MANAGEMENT SYSTEM

does that course not recommend any textbooks that you should read?

Ofcourse it does!!
If I understood it then I wouldnt be asking for help....

do you mind if i ask which textbook it is?

also, have you tried googling? there are hunnerts of web sites that explain 1NF, 2NF, 3NF...

The book that we are using is called Database Systems Design,Implementation,And Management
Seventh Edition
Peter Rob , Carlos Coronel

Try looking at the Wikipedia for understanding normalization concepts.

-PatP

Even wikipedia gives you a decent start... But you're not allowed to cite wikipedia any more are you?

EDIT: I really should have refreshed the page before responding, eh ;-)