YH-0.0.4-SNAPSHOT

문제최신 연봉이 부서 최신 연봉의 평균보다 높은 사원을 조회하세요.WITH LatestSalaries AS ( SELECT emp_no, salary, ROW_NUMBER() OVER (PARTITION BY emp_no ORDER BY from_date DESC) AS rn FROM salaries),avgSalary AS ( SELECT b.dept_no, AVG(a.salary) AS avg_salary FROM (SELECT emp_no, salary FROM LatestSalaries WHERE rn = 1) AS a JOIN dept_emp AS b ON a.emp..

문제재직 중인 개발(Development)부서의 사원 목록과 가장 최신 연봉 정보를 출력SELECT a.emp_no, CONCAT(a.first_name, ' ', a.last_name) AS emp_name, b.salaryFROM employees AS aJOIN dept_emp AS c ON a.emp_no = c.emp_noJOIN departments AS d ON c.dept_no = d.dept_noJOIN salaries AS b ON a.emp_no = b.emp_noWHERE d.dept_name = 'Development' AND c.to_date > now() AND b.from_date = (..

문제to_date가 1998년도인 연봉 상위 10% 사원의 정보 조회WITH salary_ranked AS ( SELECT a.emp_no, a.first_name, a.last_name, b.salary, percent_rank() OVER (ORDER BY b.salary DESC) AS percentile FROM employees AS a JOIN ( SELECT emp_no, salary FROM salaries WHERE YEAR(to_date) = 1998 -- 연도 필터링 ..