Query To Find Manager Name From Employee Table Without Joins

Table structure is very simple as below and I know there are solutions with joins (Left outer joins), need to know if it is possible to get o/p without using joins

Note:- also need records who doesn't have manager (null)

table structure
eid------ename------mgrid
1------Nancy------2
2------Andrew------null
3------Janet ------2
4------Margaret------2
5------Steven------4
6------Michael ------5

o/p
Employee------Manager
Nancy------Andrew
Andrew------Null
Janet ------Andrew
.
.