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12.获取所有部门中当前员工薪水最高的相关信息.md 791 Bytes
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xuthus authored 2019-08-13 08:38 . revise:content revision

获取所有部门中当前员工薪水最高的相关信息

题目描述

获取所有部门中当前员工薪水最高的相关信息,给出dept_no, emp_no以及其对应的salary

CREATE TABLE `dept_emp` (
`emp_no` int(11) NOT NULL,
`dept_no` char(4) NOT NULL,
`from_date` date NOT NULL,
`to_date` date NOT NULL,
PRIMARY KEY (`emp_no`,`dept_no`));
CREATE TABLE `salaries` (
`emp_no` int(11) NOT NULL,
`salary` int(11) NOT NULL,
`from_date` date NOT NULL,
`to_date` date NOT NULL,
PRIMARY KEY (`emp_no`,`from_date`));

答案

select dept_no,s.emp_no,max(salary) salary from dept_emp de left join salaries s on de.emp_no = s.emp_no where de.to_date = '9999-01-01' and s.to_date = '9999-01-01' group by dept_no having s.salary = max(salary)

题解

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