I have data set like below
| ID | COL A | COL B |
| 1 | AAA | BBB |
| 2 | BBB | CCC |
| 3 | CCC | ZZZ |
| 4 | DDD | FFF |
I want the delete the line that if COL A value exist in COL B or COL B value exist in COL A
so for ID 1 BBB existed in Col A so it is deleted. for ID 2 BBB existed in COL B deleted. ID 3 CCC existed in Col B so it is deleted.
the result i want is only
what is the quickest way to implement this?