SQL Query Referencing Dataset

Is it possible to reference a dataset (tag) inside of an SQL query tag?
For example:

This of course returns a syntax error. “Welding 1 WC” is another SQL query tag with a DataSet Data Type and “Resource Child” is the column I want to reference in the dataset.

I don’t think so. The expression syntax would have the row&column reference in square brackets after the curly braces, but the SQL editor doesn’t understand that. Even if that worked, you are trying to reference a whole row or column. There’s no syntax for that at all.