"A dimension table is wide but the fact table is deep," explain the statement in your own words.
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Explain the difference between data ware house & data mart?
Explain what are data marts?
What is the difference between Datawarehouse and OLAP?
What is vldb(very large databases)?
Explain what is real time data-warehousing?
What are the stages that are required in data warehousing?
After the generation of a report to whom we have to deploy or what we do after the completion of a report?
What is Data purging?
State any 5 of Cods guidelines of an OLAP system, brief description each?
What are the approaches used by optimizer during execution plan?
What are the various methods of getting incremental records or delta records from the source systems?
How to performance tune reports?