Turn Column into "Pivot" row

Question

I’m trying to turn the column "prtnum" branded yellow in Line, I’m trying to use the PIVOT but I’m not succeeding I’ve tried some ways and not right:

Select 

 Distinct (ORD_LINE.ordnum),
 ORD_LINE.prtnum,
 Sum (ORD_LINE.ordqty)

From ORD_LINE


Where 
ORD_LINE.entdte >= trunc (sysdate, 'MM')

Group By ORD_LINE.ordnum,ORD_LINE.prtnum