How can we load the time dimension?
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What are the key columns in Fact and dimension tables?
Explain difference between view and materialized view?
What is subject area?
what is query optimizer? what are different types of optimizer s supported by oracle ?
Explain what are data marts?
What are the methodologies of data warehousing?
Why denormalization is promoted in universe designing?
State any 5 of Cods guidelines of an OLAP system, brief description each?
Explain bus schema?
What is DTS ?
What is the difference between metadata and data dictionary?
What are data modeling and data mining? Where it will be used?