suppose data are coming from different locations and those
data will not change . is there any need to use surrogate key ?

Answers were Sorted based on User's Feedback



suppose data are coming from different locations and those data will not change . is there any nee..

Answer / suri

Yes, We should use the surrogate key, here we are geeting
data from different locations means every one have one
primary key, while transforming the data into target that
time morethan two key not in use so if you use surrogate
key it will identified the duplicate fields in dimensional
table.

Is This Answer Correct ?    6 Yes 0 No

suppose data are coming from different locations and those data will not change . is there any nee..

Answer / shaj

Yes, we need to add the surrogate key in table.

Is This Answer Correct ?    2 Yes 1 No

suppose data are coming from different locations and those data will not change . is there any nee..

Answer / deepthi

yes there is the use of surrogate key

Is This Answer Correct ?    1 Yes 0 No

Post New Answer

More Data Warehouse General Interview Questions

Suppose a null dataset with 10 variables; I want to print only name of the varibales in log window and also output window. How can we do this one?

0 Answers  


What is the difference between Oracle Express and Oracle Discoverer?

1 Answers  


What is operational data source (ODS)?

2 Answers  


What are the advantages and disadvantages of reporting directly against the database?

0 Answers  


How to calculate fact table granularity?

0 Answers  






What is data analysis?

0 Answers  


Explain the importance of data warehouse?

0 Answers  


I know of using applysimple, but there are other ways too?

0 Answers  


What Oracle tools can be used to design and build a W/H?

1 Answers  


What are the primary ways to store data in OLAP?

3 Answers  


Explain the different types of data warehousing?

0 Answers  


What is a functional dependency f said to be minimal?

0 Answers  


Categories