What is data merging, data cleansing and sampling?
datacleaning means duplicate data removing,meging means
combing data from sql,oracle and other ets and dumped into
dataware house
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Explain the difference between dw and bi?
What is aggregate fact table?
What is the difference between connected and unconnected stored procedures?
Write a short note on data warehousing & three-Tier Warehouse architecture in detail.
what are different storage options supported by oracle ?
How can Oracle Materialized Views be used to speed up data warehouse queries?
How can we schedule the graph in unix?
Explain what is the main difference between inmon and kimball philosophies of data warehousing?
Advantages of de normalized data?
What is a cube in data warehousing concept?
Explain what are the vaious etl tools in the market?
What is Discrete and Continuous data in Data mining world?