What is cost benefit analysis (cba)?
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What are the vaious etl tools in the market?
What is the difference between aggregate table and materialized view?
Which columns go to the fact table and which columns go the dimension table?
Database in use is oracle?
Explain what are slowly changing dimensions?
How can Oracle Materialized Views be used to speed up data warehouse queries?
What are the steps of implementing data warehousing?
Explain which are the olap tools available that are supported by oracle?
What is factless fact tables?
What are fundamental stages of data warehousing?
Difference between slicing and dicing with example?
What are aggregate fact tables ? why they are needed? give an example