Larry,
You can use column name if you only have two statements with your set
operators. However, any more than that you must user positional. See below.
1 select empno, ename from emp
2 union
3 select deptno, dname from dept
4 union
5 select locid, room from location
6* order by empno
Thanks for the response. I'm wondering if it has always been like that or if
it changed with a recent version -- don't know since I have always used
positional notation going back to V5 when I started using Oracle (and yes, I
know people go back further than that -- that's not the point I was
