Complex SQL Scenario

Get the deptno from employee table that are not in dept table and deptno from dept table that are not in employee table without using SET operators.

SELECT
COALESCE(DEPT.DEPTNO,EMP.DEPTNO)
FROM
EMP
FULL OUTER JOIN
DEPT
ON EMP.DEPTNO=DEPT.DEPTNO
WHERE EMPNO IS NULL OR DNAME IS NULL

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