Exam TDA-C01 Topic 3 Question 47 Discussion

Actual exam question for Tableau's TDA-C01 exam
Question #: 47
Topic #: 3

You have the following primary data source that contains a dimension named Dorm_Code.

You receive the following secondary data source that contains updated dorm codes.

You need to bring the updated dorm codes into Tableau and use the codes in existing visualizations. The new dorm codes must use the existing field name of Dorm_Code.
What should you do?

A. Bring in the secondary data source as a union. B. Bring in the secondary table as a left join to the primary data source. From the Data Source page, select Create Calculated Field in the Dorm_Name field and enter [Dcrm_Name_New] in the calculation window C. Bring in the secondary data source by using relationships. From the Data pane, right-click Dorm_Name select Replace Reference, and then select Dorm_Name_New D. Create a data blend and select Edit Primary Aliases to replace the primary data source alias values with values from the secondary data source

Suggested Answer: C Vote an answer

Using relationships: You can use relationships to link the secondary data source with the primary data source based on a common field. This will allow you to use fields from both data sources in your visualization without creating new fields or duplicating data. You can then replace references to update the dimension values. For example, you can use relationships to link the updated dorm codes with the primary data source and then replace Dorm_Code with Dorm_Code_New in your visualization.
https://community.tableau.com/s/question/0D54T00000C5ldZSAR/update-data-view-based-on-dimension

by Adrian at Dec 19, 2024, 09:27 AM

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