The video tutorial covers the concept of aggregation in Tableau, explaining how data can be grouped and summarized using different aggregation methods. It highlights the default aggregation options available for various data types, such as text and numeric fields. The tutorial also introduces calculated fields, demonstrating how they can be used to create new data fields for more detailed visualizations. The process of creating calculated fields is explained step-by-step, emphasizing the importance of understanding data structure and visualization needs before choosing aggregation methods.

How do calculated fields enhance data analysis in Tableau?

What are LOD expressions and how do they differ from basic calculations?

What is the significance of the PEDMAS rule in creating formulas in Tableau?

Describe the process of showing all subtotals for transaction IDs in Tableau.