What is the very basic difference between data warehouse and operational databases?
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How many types of facts and what are they?
If your client approaches you and says that he wants to create a Datawarehouse, and provides just the info regarding his source systems. What are all the neccessary actions one is supposed to take/understand and get back with a comprehensive document which convinces the client to proceed with the DW initiative. What are all the documents we need to provide the client?
How can we acheive correlated sub-query in designer?can anyone help me in this regard?
Explain what is the extension of file to save template?
What are parallel querys and query hints?
What is the difference between view materialized view and view?
what are different storage options supported by oracle ?
How can we run the graph?
How to calculate fact table granularity?
What we will do with the universe for faster process?
What is a star schema? Why does one design this way?
Explain what is the difference between a primary and secondary actor in use case modeling?