Which kind of index is preferred in DWH?



Which kind of index is preferred in DWH?..

Answer / warrenrame

Bitmap index is the best one. why because B-tree is suited
for unique values(eg: empid) and Bitmap is best for repeated
values(eg: gender m/f)

Is This Answer Correct ?    6 Yes 1 No

Post New Answer

More Data Warehouse General Interview Questions

Explain the versions of reportnet?

0 Answers  


What is a data warehousing?

0 Answers  


Explain what is the extension of file to save template?

0 Answers  


Explain what are snapshots? What are materialized views & where do we use them? What is a materialized view log?

0 Answers  


Why joiner transformation does not allow the aggregator transformation and expression transformation to join

2 Answers  






Business rule implemntation depends on? 1.)ETL requiremnts 2.)ETL performance 3.)business requirements.

4 Answers  


What is hybrid slowly changing dimension?

0 Answers  


Explain what is the difference between powerplay transformer and power play reports?

0 Answers  


What is the difference between ods and oltp?

0 Answers  


What are modeling tools available in the market?

0 Answers  


a perceptron has two inputs x1,x2 wih weights w1,w2and bias weight of w0. the activation function of perceptron is h(x).the output of perceptron

0 Answers  


What are the steps involved in creating dimensional modeling process?

0 Answers  


Categories