What is a calculation in Oracle Analytics?

In Oracle Analytics, a calculation is specifically defined as a derived metric created from existing data fields. This involves using mathematical operations or functions to combine, transform, and analyze data. By creating calculations, users can produce new insights from the data they are working with, enabling more sophisticated analytics and reporting.

Calculations can help in deriving metrics like ratios, averages, or other statistical measures that are not directly available in the data set. This capability is crucial for users aiming to enhance data analysis and reporting within an organization.

The other options describe concepts that do not accurately capture the essence of what a calculation is in this context. For instance, a report generated from external sources does not necessarily involve calculating or deriving new metrics from data fields. A collection of unrelated data points lacks the operational aspect of data manipulation that characterizes calculations. Lastly, a basic data entry operation does not encompass the analytical or derived nature of calculations, which are integral to extracting value from data through computations and transformations.