Tableau Developer and Business Analyst Interview Questions and Answers

Practical implementation of features on Tableau Desktop

• Creating interactive dashboards

• Using calculated fields for data manipulation

• Utilizing parameters for dynamic filtering

• Incorporating advanced analytics like forecasting

• Implementing data blending for combining multiple data sources

LODS (Level of Detail Expressions) and rank functions are used in Tableau for advanced calculations and analysis.

• LODS allow you to control the level of detail in your visualization by specifying the dimensions at which you want to aggregate data.

• Rank functions like RANK(), DENSE_RANK(), and ROW_NUMBER() are used to assign a rank to each row of data based on a specified criteria.

• LODS and rank functions can be used together to create complex calculations and rankings in Tableau...read more

A Windows function store procedure is a stored procedure that can be executed in response to a Windows event.

• Windows function store procedures are used in SQL Server to execute code in response to Windows events.

• They can be used to automate tasks or trigger actions based on specific conditions.

• Examples include executing a stored procedure when a file is created or deleted, or when a specific event occurs in the Windows event log.

Blending combines data from different data sources in a single view, while joins combine data from the same data source based on a common field.

• Blending is used when data comes from different sources and cannot be joined together directly.

• Joins are used when data comes from the same source and can be combined based on a common field.

• Blending allows for combining data at different levels of granularity.

• Joins require a common field to match records from different tables.

• Example...read more

Action filters allow users to interact with visualizations by selecting data points to filter other views.

• Action filters are used to filter data in one visualization based on selections in another visualization.

• They can be set up to filter data at the worksheet, dashboard, or story level.

• For example, clicking on a bar chart can filter a map to show only data related to the selected bar.

• Action filters can be set to include or exclude data based on user selections.

Tableau is used for data visualization and analysis in various industries such as finance, healthcare, retail, and marketing.

• Helping businesses track key performance indicators (KPIs)

• Creating interactive dashboards for real-time data analysis

• Identifying trends and patterns in data for informed decision-making

• Visualizing sales data to identify opportunities for growth

• Analyzing patient outcomes in healthcare to improve treatment plans