A dataset is a collection of data that designers import (or connect to) and then use to build visualizations, reports and dashboards
Power BI datasets represent a source of data ready for reporting and visualization
In Power BI the data you explore comes from a dataset. A dataset is like the engine in a car. The dataset provides the data, metrics, and information that’s displayed in your Power BI dashboard
When you create visualizations in reports and dashboards, you’re often looking at data in the dataset
The work you do in Power BI doesn’t change the underlying dataset
Each dataset represents a single source of data
ONE dataset:
Can be used over and over in one or in many workspaces
Can be used in many different reports
Visualizations from that one dataset can display on many different dashboards
Use a dataset to create a report from scratch or by running quick insights