Describe the Loading Process Used in Data Warehouses

question 74

Essay

Describe the loading process used in data warehouses.

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Definitions:

Median

The middle value in a data set when the values are arranged in ascending or descending order, or the average of two middle numbers if the dataset has an even number of observations.

Set of Data

A collection of related pieces of information or numerical values subject to analysis.

Mean

The central value of a numeric dataset, determined by summing all the numbers and dividing by the total number of values present.

Frequency Distribution

A statistical representation showing the number of occurrences of each distinct value in a set of data.