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Issue with Execute SQL query with formal paramter in Flow



I am currently having an issue with Executing a SQL query with parameter in Flow.

I have a PowerApp that calls a flow and give  certain paramaters to the Flow.

The goal of the Flow is that it Executes A query an give the result back to PowerApps.


I created a flow that takes input from Power Apps.

After that I use a Compose to transform the inputvariable (formatting input date to 'yyy-MM-dd')

After that I want to execute a SQL query with the output of the Compose as a formal parameter.

However it seems that he is not assigning any value to the formal paramater.


He is running succesfull, but does not return a value for @datum. He seems not store the date in that variable (it is not a connection issue since he do return the BD_opbrengst value).

Does anyone have an idea what I am doing wrong? Changing the datatype of the variable does not help either.


See below the ouput that I get when I test the flow:


declare @datum as char(10); select @datum as datum, BD_opbrengst from dbo.opbrengsten
  "datum": "2011-08-15"
Query Results
  "OutputParameters": {},
  "ResultSets": {
    "Table1": [
        "datum": null,
        "BD_opbrengst": 5000


Community Support Team
Community Support Team

Re: Issue with Execute SQL query with formal paramter in Flow

Hi @PowerappBuilder ,


Could you please share a screenshot of the configuration your flow?

Could you please explain more details about your issue?


Please share more details so we would try to provide a proper workaround for you.


Best regards,

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

Level: Powered On

Re: Issue with Execute SQL query with formal paramter in Flow

Hi Alice,


Below the flow I am currently testing.

So I ask from PowerApps a variable, put that in Compose to transform that variable, and then assign the output of   compose as Formal Paramater to Excecute SQL query.

In picture you see that I give that value to "datum".

Whener I execute the query Select @datum he gives as ouput NULL.

Even when I just initialize a variable in Flow and give it a default value and give it then as a formal paramater to Execute a Sql query, he gives ouptut NULL.  So  whatever I try I do not get a value for the formal parameter returned by the query . He seems not able to assign the value to the formal paramater.

He do return the value from BD_opbrensgt (so there is no connectivity issue).





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