How To Get Rows From DSN Query Operation


I am trying to use /Databases /Library/Operations/Databases/DSN Query operation to query a FileMaker Database.

The access is OK but i cannot get my rows .

The query is : Select * from myTable

In the description of this operation we found the following:

My questions are:   

From where i can get my rows ?

Where i can find the GetNextSqlRow operation that is mentioned in the above description?