What is grain of fact?
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how do u handle performance issues in Informatica . where can u monitor the performance ?
Explain about etl data integration software?
Do we need an ETL tool? When do we go for the tools in the market?
Mention few test cases and explain them?
what is the advantage of persistent cache? when it should be used?
how would u estimate the size of Aggregator transform data and index cache?
What is ROWID explain ?
What is Data Vault???
What is etl process? How many steps etl contains?
How to load Session Statistics (Workflow name, TgtRows, Rejected Rows, SessStartTime,SessEndTime..)into a database table ?? Another Question: I want to pass values from oracle table or Flat file in Mapping parameter/Variable.. What is the method for that..Please provide me the solution step by step
explain the methodology of Data Warehousing?(Polaries)
what are the different Reporting and ETL tools available in the market?