57. 다음에 주어진 릴레이션 Employee와 Department에 대해 각 SQL문을 수행한 결과로 생성되는 레코드의 개수가 옳지 않은 것은? Employee Department ①SELECT *FROM Employee as E INNER JOIN Departmentas D ON E.deptno = D.deptno;3②SELECT *FROM Employee as E LEFT OUTER JOINDepartment as D ON E.deptno = D.deptno;3③SELECT *FROM Employee as E RIGHT JOIN Departmentas D ON E.deptno = D.deptno;4④SELECT *FROM Employee as E FULL JOIN Departmentas ..