How to 'chown' by user with root's permission

user: oracle

1, chown anywhere on system:

vi /etc/sudoers

add : oracle ALL = NOPASSWD: /bin/chown

2, chown for one directory on system:

chown from root or other user to : oracle:oinstall

directory: /backup

------------

mkdir /chownbk

touch /chownbk/chownbk.sh

vi /chownbk/chownbk.sh , add :  /bin/chown -R oracle:oinstall /backup 

vi /etc/sudoenrs , add into last:  oracle ALL = NOPASSWD: /bin/sh /chownbk/chownbk.sh  

user oracle run command:   sudo /bin/sh /chownbk/chownbk.sh