ref cursor question

I am returning REF Cursors to an external interface. I want code to test each of these procedures. The problem is that these queries often have 25+ columns in them from several tables.

My test procedure really only needs 1 column to verify the query executes and so I can trace it to check the plan.

so I am looking for something like

fetch myrefcursor.FIRSTCOLUMNONLY in l_myval

Without having to make a new procedure that either has a ref cursor with just 1 column in the select clause . The problem with this option is that every time I change a query, I have to change the code in 2 places. This can easily get out of synch.

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