Tableau is a data visualization tool used to convert raw data into an understandable format without coding.
Tableau Desktop, Tableau Public, Tableau Online, Tableau Server, Tableau Prep.
A Tableau Data Extract is a compressed snapshot of data stored in Tableau’s proprietary format for improved performance.
A live connection enables Tableau to retrieve data in real-time from the source.
Dimensions are categorical fields, while measures are numerical fields used for calculations.
A heat map shows data density using colors, while a tree map uses size and color to represent hierarchical data.
Data blending combines data from different sources to create a single view.
A Tableau dashboard is a collection of multiple visualizations displayed in a single interface.
Groups in Tableau are a way to combine dimension members into higher-level categories.
Use the calculated field option under the analysis tab to write custom formulas.
LOD expressions allow you to calculate values at a detailed or aggregated level independent of the visualization.
Joins merge data from the same source; blending merges data from different sources.
Filters allow you to limit the data displayed in a worksheet or dashboard based on specific conditions.
A context filter sets the base layer for all other filters to process data faster.
Tableau Public is a free version of Tableau used to create visualizations that are publicly available.
A dual-axis chart is a combination of two charts overlaid on the same axis to compare metrics.
Shelves are the areas in Tableau where dimensions, measures, and other fields are placed to build visualizations.
A parameter is a dynamic input value that can be used to replace constant values in calculations and filters.
Hierarchy is used to define a relationship between fields in a dataset, allowing for drill-down functionality.
Tableau offers options like filtering out null values, displaying them as zeros, or assigning a default value.
