can any one explain about normalization forms with clear
explanation in interview point of view.
thanks for ur answers.
Answer Posted / ajeet khari
normalization is organizing data efficiently into database...
main thing is 1.elimination of redundant data,2. data
dependencies..
1NF-a table is decomposed into 2D table with no duplicate
column....
2nd NF- should be in 1NF and there should not be any
duplicate row...
3NF- should be in 2NF and contains transitive dependencies
remove that column which are not dependent on PK.
4NF-should be in 3NF and it has no malti valued dependencies.
Is This Answer Correct ? | 10 Yes | 0 No |
Post New Answer View All Answers
What are different types of resources?
can any one tell me how i can start database testing mean what should be initial point and how i can write a query for listing page of any item thanks in advance
How to implement database security?
Explain buffer manager?
Which three commands cause a transaction to end?
What does new grouping sets enables you to do?
How to do Data integrity testing? Who does this testing (Developer or tester)?
What is the candidate key used for?
What are indexes in oracle?
What is Data Modelling?
Why do we need distributed database?
Should I store images in database?
Explain storage manager?
How heap is implemented in database?
Does facebook use graph database?