Explain hybrid slowly changing dimension?
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What are the various transformation available?
How can we run the graph? What is the procedure for that?
Which kind of index is preferred in DWH?
What is ETL process in Data warehousing?
What is edw?
Explain what are the various methods of getting incremental records or delta records from the source systems?
2.What is staging area ?
4 Answers HCL, IBM, iFlex, TCS,
What needs to be done while starting the database?
Explain what are snapshots? What are materialized views & where do we use them? What is a materialized view log?
Explain what are the possible data marts in retail sales?
I need to set predefined condition. How I do this?
what is the difference between DSS and ODS ?