Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...


what is the meant by Normalization and de-normalization?

Answers were Sorted based on User's Feedback



what is the meant by Normalization and de-normalization?..

Answer / gireesh

Normalization is a process in database design which groups
data into various tables which are then crosslinked by a
particular field. In a properly normalized database, there
will be only one field in one table for a particular piece
of data, eliminating possibility for conflicts. Breaking the
database up into numerous smaller tables, and eliminating
redundancies, eases management and enhances efficiency.

Is This Answer Correct ?    24 Yes 5 No

what is the meant by Normalization and de-normalization?..

Answer / srinivas

Normalization:
Normalization is a technique to reduce redundant, and
inconscistent data. normally normalization techniques use
in snoflake schema.

De-normalization:
it is a technique to move high to low normal forms in
datamodeling to increase the performance of databases.

Is This Answer Correct ?    3 Yes 0 No

Post New Answer

More ETL Interview Questions

Can anyone please send me the latest informatica dumps (power center 8.1.1) for all the three exams? My mail id is yokilamai@gmail.com

1 Answers  


In the SEQ generator which property has to be set to generate seq No. when the input data is more than the max limit.

3 Answers   Accenture,


Can anyone tell me what are the roles and responsibilities of informatica support ( L1, L2, & L3 ) Team?

1 Answers   IBM, Saama Tech, Wipro,


how many maximum session supports to multiload in teradata ??

0 Answers   IBM,


how do u identify the changed records in operational data?

0 Answers   QualTech,


Explain the difference between etl tool and olap tools?

0 Answers  


my name is amar i want display 1st line A 2nd line M 3rd line A 4th line R in database & informatica

1 Answers   HCL,


how can i text accracy of ETL migration? i am very new to data warehousing. we are writing ETL scripts using SCRIPELLA tool. how can i test the correctness of data. and we are generating reports using pentaho . is there any easy way to test the pentaho. how can test these ETL scripts written in scriptella? thanks in advance

0 Answers  


can Informatica be used as a cleansing tool? If yes, give examples of transformations that can implement a data cleansing routine.

0 Answers  


In informatica, I have 10 records in my source system. I need to load 2 records to target for each run. How do I do this?

0 Answers  


please tell me any easy ways of testing the Data warehouse project. In my project we are not using any tools for ETL. we are writing scripts in SCRIPTELLA. And we using Pentaho tool for Reporting How can i test all these. please tell me ASAP. thanks in adavance

0 Answers  


Two different admin users created for repository are________and_________.

1 Answers  


Categories