⟩ Explain me what is Interpolation and Extrapolation?
Estimating a value from 2 known values from a list of values is Interpolation. Extrapolation is approximating a value by extending a known set of values or facts.
Estimating a value from 2 known values from a list of values is Interpolation. Extrapolation is approximating a value by extending a known set of values or facts.
Suppose you are filtering the rows using a filter transformation only the rows meet the condition pass to the target. Tell me where the rows will go that does not meet the condition.
Briefly state different between data ware house & data mart?
What is galaxy schema?
What is Meta data?
How Many different schemas or DW Models can be used in Siebel Analytics. I know Only STAR and SNOW FLAKE and any other model that can be used?
What is an error log table in Informatica occurs and how to maintain it in mapping?
What is loop in Data warehousing?
What is ER Diagram?
What is a CUBE in data warehousing concept?
What is drilling across?