SQL Query result formatting result

[midland192]

Hi

New to budibase and need a bit of help.

I'm running a simple SQL query which will always return a single numeric value
Then on a button I'm running some actions to update a state value with return value of query
this all works OK

Thing I dont know how to do is format the returned value?
This is what I get
{"data":[{"Fieldname":13}]}

The '13' is the value I need but how do I format to just show that?

thanks