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Question 4

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?

Bring in the secondary data source as a union.

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 [Dorm_Name_New] in the calculation window.

Bring in the secondary data source by using relationships. From the Data pane, right-click Dorm_Name. select Replace References and then select Dorm_Name_New.

Create a data blend and select Edit Primary Aliases to replace the primary data source alias values with values from the secondary data source.

Correct Answer: C

To update the existing dimenstion named Dorm_Code with the new codes from the secondary data source, you should bring in the secondary data source by using relationships. You can then right-click the Dorm_Name field in the Data pane and select Replace References to point to Dorm_Name_New. This method maintains the integrity of the original visualization while simplifying the update process, avoiding the creation of unnecessary calculated fields.

Discussion

VedjhaOption: C

Replace reference is the easiest way to replace/update the dimension. Answer should be C

daniel_wang8889999Option: C

C is not correct as relationship is for multiple connections instead of datasources.

MonBouj

good point! could you please help on the right answer?

MonBoujOption: C

Replace reference

CollectiveConsciousnessOption: C

C should be the answer, as replace references is easier. It is possible to do with B, but you'd be creating an extra dimension for no reason.

VedjhaOption: C

Replace reference is the easiest way to replace/update the dimension. Answer should be C