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 difference between snow flake and star schema. What are situations where snow flake schema is better than star schema to use and when the opposite is true?
Where do we use semi and non additive facts?
What is defined as partial backup?
What is the function of surrogate key in data warehousing?
What is Discrete and Continuous data in Data mining world?
Compare cold fusion with other programming languages?
wht is degenerated dimension ?it's uses?
What is the difference between metadata and data dictionary?
What is loop in data warehousing?
Who needs data warehousing?
If two relational tables are connected to sq trans, what are the possible errors it will be thrown?
Suppose a null dataset with 10 variables; I want to print only name of the varibales in log window and also output window. How can we do this one?