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Question
Which is the optimized method of extracting the data.
 Question Submitted By :: Abhishek
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  Re: Which is the optimized method of extracting the data.
Answer
# 1
Delta loading is a way to extract data in a optimized way. Doing the incremental load by tracking the last update date or modified date makes the ETL processing faster.
 
Is This Answer Correct ?    1 Yes 0 No
Pratap Gangula
 

 
 
 
Other Data Warehouse General Interview Questions
 
  Question Asked @ Answers
 
What is Bulk Insert?  3
What is aggregate awareness?  2
What is the difference between OLAP, ROLAP, MOLAP and HOLAP?  2
what are the similarities between ROLAP and MOLAP  1
What is ?Data mining??  2
1.WHAT IS DATA MART ? HCL4
wat is code review and wat actually srs or how can we create HLD,LLD.PLS,GIVE ME ANSWER AS EARLY AS FAST.  1
Tell me one example for multi valued dimension or bridge table? TCS2
What is the difference between Oracle Express and Oracle Discoverer?  1
What is staging area?  7
what are different types of partitioning in oracle ?  2
2.What is staging area ? HCL3
What is source qualifier?  1
How can you define a transformation? What are different types of transformations in Informatica? TCS4
What's a Cube in Rolap? Oracle2
What is Factless fact table? In which purpose we are using this in our DWH projects?Plz give me the proper answer. Thanks, Ramesh ACS6
DWH architecture?  4
What is ?Data Warehousing??  2
What is data merging, data cleansing and sampling?  1
What Oracle tools can be used to design and build a W/H?  1
 
For more Data Warehouse General Interview Questions Click Here 
 
 
 
 
 
   
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