What are the various methods of getting incremental records or delta records from the source systems?
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Explain about core dimension,
What are parallel querys and query hints?
what are different types of partitioning in oracle ?
What are vaious etl tools in the market?
What is junk dimension? What is the difference between junk dimension and degenerated dimension?
What are the different types of Fatcs? Explain with example only
What is the difference between er modeling and dimensional modeling?
Explain dimensional modelling?
What are Data Marts?
Explain what is a cube in data warehousing concept?
Can you describe me a problem you faced when you were trying to load data from R3 system and another system outside sap systems?
In a star schema, are foreign key constraints between facts and dimensions neccessary?