Tableau Interview Questions
TDSX file will be a larger file as it is packaged with data.
What-if scenario involves accepting user input in the dashboard and changing the calculations based on the user input. A good example will be discount offered, where the user wants to know, at run time, how his overall profitability will change if he changes the discount price.
What-if analysis can be performed by the use of Parameters.
What-if analysis can be performed by the use of Parameters.
A multi-developer environment is required when a number of dashboards are to be developed by different developers.
In such an implementation/s, the team can be divided into data modelers and dashboard designers. Alternatively, one complete dashboard can be assigned to a single developer. But when the dashboard is huge then multiple developers can work on the same dashboard and create a visualization in separate workbooks.
There can be many ways to implement such scenarios
- Data modeler/s create data sources and save it as TDS file or publish it to the server. This will ensure that all data standards and transformations are maintained.
- Developers connect to this published data source to develop dashboards.
- If sheets are developed by different developers, then they can be merged into a single dashboard by performing copy/paste.
- Once all sheets are merged into one workbook, there will be many data sources as data sources are tied to the sheets. These data sources are to be replaced by the primary data source and all other data sources can be closed.
In such an implementation/s, the team can be divided into data modelers and dashboard designers. Alternatively, one complete dashboard can be assigned to a single developer. But when the dashboard is huge then multiple developers can work on the same dashboard and create a visualization in separate workbooks.
There can be many ways to implement such scenarios
- Data modeler/s create data sources and save it as TDS file or publish it to the server. This will ensure that all data standards and transformations are maintained.
- Developers connect to this published data source to develop dashboards.
- If sheets are developed by different developers, then they can be merged into a single dashboard by performing copy/paste.
- Once all sheets are merged into one workbook, there will be many data sources as data sources are tied to the sheets. These data sources are to be replaced by the primary data source and all other data sources can be closed.
You can copy a visualization or a sheet from one Tableau workbook to another. The Sheet is tied to the data source, so when you copy the sheet, to another workbook, the data source will be copied as well. You can always replace this new data source with the one in the copied workbook and close the data source which is no longer in use.
On a scatter plot, highlight all such data elements and create a Group. This group will be displayed as a field in the Dimension section, which can be renamed.
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