What is critical column?
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More Data Warehouse General Interview Questions
Can you state some of the innovations throughout history?
in general which algorithms for used?
How can we determine what records to extract?
What are data modeling and data mining?
Why do we use DSS database for OLAP tools?
In document how to create metrics?
What is surrogate key?
Explain what are the tasks that loadmanger process will do?
Do you always need to copy the data before reporting on it?(Example, real-time & on-demand reporting is a requirement)?
How are models actually derived?
What are data modeling and data mining? Where it will be used?
Explain what are slowly changing dimensions?
Teradata 
