What is the definition of cube in datawarehousing?
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Give me a broad concept of what a data warehouse is, and what it might be used for?
What are Non-additive facts?
Difference between ODS and Staging
How to import vsam files from source to target. Do we need a special plugin?
Explain what are the possible data marts in retail sales?
Explain what is the data type of the surrogate key?
what is the difference between aggregate table and fact table ? how do you load these two tables ?
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?
Which technology should be used for interactive data querying across multiple dimensions for a decision making for a dw?
How did you plan your Data ware house project?
What is data warehosuing hierarchy?
Explain the main differences between star and snowflake schema?