FROM DEPT, EMP, EMP
SELECT DEPT.DEPT_NO, EMP.EMP_NAME, COUNT(*),
MIN(EMP1.EMP_SAL), MAX(EMP1.EMP_SAL), AVG(EMP1.EMP_SAL)
FROM DEPT, EMP, EMP EMP1
WHERE DEPT.DEPT_NO = EMP1.DEPT_NO
AND DEPT.DEPT_MNG = EMP.EMP_NO
GROUP BY DEPT.DEPT_NO, EMP.EMP_NAME;
Введение в модель данных SQL
SELECT DEPT.DEPT_NO, EMP.EMP_NAME, COUNT(*),
MIN(EMP1.EMP_SAL), MAX(EMP1.EMP_SAL), AVG(EMP1.EMP_SAL)
FROM DEPT, EMP, EMP EMP1
WHERE DEPT.DEPT_NO = EMP1.DEPT_NO
AND DEPT.DEPT_MNG = EMP.EMP_NO
GROUP BY DEPT.DEPT_NO, EMP.EMP_NAME;