What are the approaches used by optimizer during execution plan?
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Explain when do we analyze the tables? How do we do it?
Explain what are non-additive facts in detail?
waht is the advantage of infoset query
What are aggregate fact tables ? why they are needed? give an example
Explain what is metadata reporter?
What are the data marts?
What is the difference between view materialized view and view?
Explain how does tuple-oriented relational calculus differ from domain-oriented relational calculus?
How much data hold in one universe.
Who needs data warehousing?
What is conformed fact?
How to import vsam files from source to target. Do we need a special plugin?