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Answer Posted / muthumani
Hi
Can you please share the dumps to me ( muthumani@inbox.com)
Thanks & Regards
Muthumani
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What is ods (operation data source)?
what are the major three types of modeling used?
What is the difference between star and snowflake schemas?
What is critical column?
Explain what are the vaious etl tools in the market?
Explain difference between snow flake and star schema. What are situations where snow flake schema is better than star schema to use and when the opposite is true?
What are the different types of fact tables used in data warehousing?
Explain what are the various methods of getting incremental records or delta records from the source systems?
Explain about core dimension, balanced dimension, and dirty dimension?
What is conformed fact?
Explain what are the various transformation available?
How can you implement many relations in star schema model?
Explain how to get the first 100 rows from the flat file into the target?
How to design file watch jobs?
What is scd1 , scd2 , scd3?
