What is metadata in context of a datawarehouse?
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What is the main difference between schema in rdbms and schemas in datawarehouse?
Explain clustering algorithm?
What is real-time datawarehousing?
Explain what is the difference between powerplay transformer and power play reports?
How to answer the question how many fakt table in your datawarehouse and what size it have?
What is DTM session?
What is incremintal loading?
what is the difference between aggregate table and fact table ? how do you load these two tables ?
Why should we use data ware housing and how can you extract data for analysis with example?
Explain the structure of cold fusion?
Compare aggregates and data marts
What are the various methods of getting incremental records or delta records from the source systems?