Aggregate tables are the tables which contain the existing warehouse data which has been grouped to certain level of dimensions. It is easy to retrieve data from the aggregated tables than the original table which has more number of records.
This table reduces the load in the database server and increases the performance of the query.
How many fact tables are there in a star schema?
List the Schema that a data warehouse system can implements?
Explain data mart?
Define metadata?
What is Summary Information?
Define dimension?
Please explain your supervisory style?
Explain about a short term plan you developed for your department/team/group?
Explain about your education. How has it prepared you for a career as a Warehouse Supervisor?
Tell us what are your greatest weaknesses and what are you doing to improve it?
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