What is the difference between data warehouse and operational systems?
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How to join 3 database like flat file, oracle, db2 in informatrica?
What are data modeling and data mining? Where it will be used?
What is data stream and data adaopter?
Briefly state different between data ware house & data mart?
What is surrogate key? Where we use it explain with example?
What are the difference between snow flake and star schema? What are situations where snow flake schema is better than star schema to use and when the oppositeis true?
How to allow a dynamic selection of a column for a measure in a chart,without using variable?
What is mapplet?
Where the applications and where ware house management system is used?
What is the function of etl when used in data warehousing?
What is a linked cube?
Which is the optimized method of extracting the data.