Merge date columns from different tables

[Anonymous]

I have 2 different tables 

1. Incidents

2. observations

Both have date fields 

1. Incidents   - Incident date

2. observations - Created Date.

Currently I am maintaining 2 date filters to filter incidents and observations. I want to merge date columns, so I can have one date filter.

[v-joesh-msft · Accepted solution]

Hi  @Anonymous ,

You can create a Date table, then use this Date table to create a relationship with your two tables.

Here are some related articles:

https://www.sqlbi.com/articles/creating-a-simple-date-table-in-dax/

https://kohera.be/blog/power-bi/how-to-create-a-date-table-in-power-bi-in-2-simple-steps/

Best Regards,

Community Support Team _ Joey
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[Anonymous]

Dear @v-joesh-msft ,

I tried doing that, when I tried creating new relationship, Hierarchy in existing date columns disappears and creating new hierarchy doesnt works out.

[v-joesh-msft]

Hi  @Anonymous ,

This is the case, and accordingly, you can use the hierarchy in the Date table.

Best Regards,

Community Support Team _ Joey
If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[Ashish_Mathur]

Hi,

Create a Calendar Table by going to Modelling > New Table.  Build a relationship from the Date column of both Tables to the Date column of the Calendar Table.

Hope this helps.

[Anonymous]

Dear @Ashish_Mathur,

"Relationship from the Date column of both Tables to the Date column of the Calendar Table", can u explain tis further?

[Ashish_Mathur]

Hi,

Read this - https://docs.microsoft.com/en-us/power-bi/desktop-create-and-manage-relationships