What are the different types of scd's used in data warehousing?
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How can we do data cleaning?
What is an OLAP (On-line Analytical processing) system?
How can we run the graph? What is the procedure for that?
When should you use a STAR and when a SNOW-FLAKE schema?
How are the dimension tables designed?
What a static and local variable?
What are aggregate fact tables ? why they are needed? give an example
What is the "junk dimension"? Give with examples?
Write a short note on data warehousing & three-Tier Warehouse architecture in detail.
What is Bulk Insert?
Suggest a good author for hyperion in data warehousing?
What is the very basic difference between data warehouse and operational databases?