Question
a.
When data at the lowest level of detail is needed for analysis
b.
When the source data is already summarized
c.
When data at the lowest granularity is not needed for analysis
d.
When all users require the lowest level of detail
Posted under Data Warehousing and OLAP
Engage with the Community - Add Your Comment
Confused About the Answer? Ask for Details Here.
Know the Explanation? Add it Here.
Q. When might summarization be part of the data transformation function?
Similar Questions
Discover Related MCQs
Q. What does the enrichment task involve in data transformation?
View solution
Q. Which of the following is a common transformation type that involves changes to the data types and lengths of individual fields?
View solution
Q. What does decoding of fields typically involve in data transformation?
View solution
Q. When is the splitting of single fields necessary in data transformation?
View solution
Q. What is the purpose of merging of information in data transformation?
View solution
Q. In data transformation, what is an example of a calculated and derived value?
View solution
Q. What does character set conversion in data transformation primarily involve?
View solution
Q. When might a company need to convert units of measurements in data transformation?
View solution
Q. What is the purpose of date/time conversion in data transformation?
View solution
Q. What does key restructuring in data transformation involve?
View solution
Q. What does deduplication in data transformation refer to?
View solution
Q. What is the primary challenge in ETL functions when dealing with source data from disparate systems?
View solution
Q. What does data integration and consolidation involve in the context of ETL functions?
View solution
Q. What is the Entity Identification Problem in the context of data integration?
View solution
Q. What is one approach to solving the Entity Identification Problem?
View solution
Q. How do some companies handle the Entity Identification Problem in two phases?
View solution
Q. What is the Multiple Sources Problem in the context of data integration?
View solution
Q. How might you decide which source to use when faced with the Multiple Sources Problem?
View solution
Q. What is the primary purpose of transforming dimension attributes in the context of data warehousing?
View solution
Q. When considering the implementation of data transformation, what factors should be taken into account?
View solution
Suggested Topics
Are you eager to expand your knowledge beyond Data Warehousing and OLAP? We've curated a selection of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!
