A beginner, don't have much contact with
I don't know what was wrong with this passage
Hope ace directions
Code the following
The select w. enamel "name", d. dname "department name," m. ename "superior name
"The from emp w
Left the join dept in d
On w. deptno=d. deptno
Left the join in emp m
MGR=on m. w. empno
Where e. ename='SMITH';

CodePudding user response:

It's all right, words are wrong, let you laughed,