Hi @Anonymous
English, please!
Google Translate tells me that:
"I use flow to get the row number of the table in sql server and return it to power apps. But I got a boolean variable.
Power application program interface:
Power automatic interface:"
I think, in SQL Server, you have to name the count (select count(*) 'TotalValue' from OrderData) to get a name in JSON that you can refer to.
The Run is a boolean because it will only indicate that the run was successful or not.
Here's a tutorial in how to get data back to Power Apps:
https://flow.microsoft.com/en-us/blog/return-data-to-powerapps/
I hope this helps.
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Cheers
Manuel