2 Datasets - 1 Date Slicer - Relationship needed?

[Anonymous]

I have 2 datasets in my report 1)ChurnSignupsByDate and 2)ChurnDetails.  Both datasets have a field call SVC_END_DATE.  'ChurnSignupsByDate' has a single record for each SVC_END_DATE

'Churn' has all of the records for each Churn records with multiple records for each SVC_END_DATE.  

I want to display visualizations off of each dataset on the same report page with only one Date Slicer on this field SVC_END_DATE from ChurnSignupsByDate .  Do I have to create a relationship between these datasets?  When I tried this, I lost data in my ChurnDetails table. 

Can I please get help making this work? Any help is appreciated!

[MFelix]

Hi @Anonymous,

If your common value is a date you need to relate both tables based on a calendar table and then make a relationship between that table and the other two. However depending on how your model is setup you may need to create some additional dimension table to relate the tables in order to show the correct results. 

Can you share a sample data and expected result? 

[Anonymous]

When I create the One to Many relationship, the records from the Details start at 3/9/2020 and forward.  I can't figure out why.  

You can see the left table has more records than the right.

[Anonymous]

I had the tables in the relationships backwards.  This is close but there are records in the Details table not being filtered by the selector.

[Anonymous]

As soon as I added a Date table I lost records in the Details table:

Date = Calendar( Date(2019, 1, 1), Date(2025,12,31))

The Details table has dates back to 1/1/2020 but with the join it will only show dates from 3/9/2020 forward

[Anonymous]

[Anonymous]

I figured it out.  One of my Dates has the time and the other just the date.  

[Anonymous]

Good solution to use the Date table @MFelix.  Thanks for you help!

[MFelix · Accepted solution]

Be aware that when making this type of relationship you must always use on your visualization the column of the one side to get your results, further more when working with dates as a best practice the use of a date table is better because of the continuous dates.

Do you have a calendar table?