A circular dependency was detected: myTable[myColumn].

[Simone2004]

Hi everyone,

I have two tables in my model and I should visualize data from both. Two tables have a relationship 0..1-1 in sql server but in power bi the relationship is generated as 1...Many... 

The result I expect is really simple: 

I must visualize the creation date of a request, and the payment date if the request has been sold.

I am trying to solve the problem step by step. I let you see... This is my model:

First thing I have done is created a new column on payments fact table:

payment_date = RELATED('registry dimension_time (2)'[date])

Everything is ok... Now in my requests fact table I create a new column:

payment_date =

    CALCULATE

    (

        SELECTEDVALUE('payments fact'[payment_date]),

        NATURALLEFTOUTERJOIN('requests fact','payments fact')

    )

Or

payment_date =

    CALCULATE

    (

        SELECTEDVALUE('payments fact'[payment_date]),

        USERELATIONSHIP('requests fact'[request_id],'payments fact'[request_id])

    )

In both cases I getthe error:

A circular dependency was detected: requests fact[payment_date].

If I replace the column with a measure, it seems it works but I get strange results (see the first image in this post).

Any help please? Is more than 5 days I am trying to solve this problem... 😞

Thank you

[parry2k]

@Simone2004 you can manually change it to 1 to 1 if you know it will never be 1 to many and then everything is super simple.

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[parry2k]

@Simone2004 I think you are overcomplicating it. Does one request can have only 1 or 0 payments, or it can have more than 1 payment as well? If the answer is more than one payment can happen then what payment date would you like to for that request, most recent or the first payment date?

[Simone2004]

no no... a  request can have only 1 or 0 payments.. I don't know why power bi create a 1-Many relationship