Where the data cube technology is used?
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What is Operational Data Store?
does anyone "QlikView" BI tool. if you have any docs send me pls. yaparas84@gmail.com
Give some difference between oltp and olap.
why oracle is the best database for data warehousing?
What is surrogate key? Where we use it?
Explain what are the tasks that loadmanger process will do?
What are snapshots? What are materialized views & where do we use them?
Explain what are the basic needs to join two sources in a source qualifier?
How to improve session performance in aggregator transformation?
suppose data are coming from different locations and those data will not change . is there any need to use surrogate key ?
Explain functional dependency?
What is a fact table?