What is the difference between olap and datawarehosue?
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5.Explain ODS ?
What is the difference between snowflake and star schema? What are situations where snowflake schema is better than star schema when the opposite is true?
What is crass reference table?
what are the similarities between ROLAP and MOLAP
What are the different models used in cluster analysis?
Explain how does tuple-oriented relational calculus differ from domain-oriented relational calculus?
What is the goal of optimizer?
What is a core dimension?
Which parameter specified in the default storage clause of create tablespace cannot be altered after creating the table space?
What are aggregate transformation?
Explain the difference between view and materialized view?
Explain the difference between oltp and olap?