What does Rollup means
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Consolidating Data
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Copying Data
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Cleaning Data
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Interpolating Data
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Explanation
In data warehousing and OLAP contexts, rollup refers to consolidating data by aggregating it from a lower level of detail to a higher level (e.g., daily to monthly, or product to category). This is a fundamental operation for generating summaries and trends.
AI explanation
In OLAP/data warehousing terminology, a 'rollup' means aggregating or consolidating detailed data up through a dimensional hierarchy (e.g., summing daily sales up to monthly, then yearly totals, or city-level up to region/country). This is the standard definition of the ROLLUP operation, distinct from simply copying, cleaning, or interpolating data, which are different data-processing operations entirely.