Explain some of modeling tools available in the market?
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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?
Explain techniques of error handling - ignore , rejecting bad records to a flat file , loading the records and reviewing them (default values)?
Explain what is fact less fact table? Where you have used it in your project?
What is a real-time data warehouse?
What is the difference between olap and oltp?
Explain what is real time data-warehousing?
What is factless fact schema?
What is the difference between Oracle Express and Oracle Discoverer?
What is an IDQ file? What is the purpose of the IDQ file and what kindof information does it usualy hold? Can it be imported by informatica?
what is the use of surrogate key in businessobjects
Can you state some of the innovations throughout history?
What is the difference between static cache and dynamic cache?