Tableau Developer Interview Questions and Answers for Freshers

Data blending combines data from multiple sources while cross database join combines data from different tables in the same database.

• Data blending is used when data is stored in different sources like Excel, CSV, or databases.

• Cross database join is used when data is stored in different tables within the same database.

• Data blending creates a relationship between the data sources based on common dimensions.

• Cross database join combines data based on a common field or key.

• Data bl...read more

Filters and parameters are Tableau features used to refine data and customize visualizations.

• Filters are used to limit the data displayed in a visualization based on certain criteria.

• Parameters allow users to adjust certain aspects of a visualization, such as date ranges or color schemes.

• Both filters and parameters can be used to create interactive dashboards and improve data analysis.

• Examples of filters include date filters, categorical filters, and top N filters.

• Examples of...read more

Groups and sets are two ways to organize and analyze data in Tableau.

• Groups are a way to combine related dimensions into a single category.

• Sets are a way to create a subset of data based on a condition or criteria.

• Groups can be created manually or by selecting related dimensions.

• Sets can be created based on a range of values, a condition, or a top/bottom percentage.

• Groups and sets can be used in calculations, filters, and visualizations.

Tableau is a data visualization tool that helps in analyzing and presenting data in an interactive and meaningful way.

• Tableau allows users to create interactive dashboards and reports

• It can connect to various data sources and perform data blending

• Tableau provides advanced analytics capabilities like forecasting and trend analysis

• It helps in identifying patterns and trends in data that might not be visible otherwise

• Tableau is user-friendly and requires minimal coding knowledge