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CREATE TABLE dept ( deptno NUMERIC(5) NOT NULL, deptname VARCHAR(20), location VARCHAR(50) ); CREATE TABLE emp ( empno NUMERIC(5) NOT NULL, empname VARCHAR2(50), job VARCHAR2(20), note VARCHAR2(20), salary NUMERIC, deptno NUMERIC, date_from DATE NOT NULL, date_to DATE ); CREATE TABLE salgrade ( grade NUMERIC NOT NULL, low_salary NUMERIC, hi_salary NUMERIC ); SELECT dept.deptname AS "Отдел", RTRIM( WM_CONCAT(emp.empname || ', ') WITHIN GROUP (ORDER BY emp.empname), ', ' ) AS "Список сотрудников" FROM dept LEFT JOIN emp ON dept.deptno = emp.deptno GROUP BY dept.deptname;

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