基于带有连接的一列的min的单行

Question

我试图通过加入另一个表来获取与min（date）相关联的行中的某些列。

我在Hive中使用它。

我的查询是：

With temp1 as
(Select employee_id as emp_id, min(date) as min_date from employee where        employee_id in (select employee_id from employee_sal) group by employee_id)
Select
employee_sal.dept_code,
Temp1.emp_id,
employee_sal.dept_name,
employee_sal.paid_loc,
employee_sal.country_paid,
min_date
from employee_sal inner join temp1 on employee_sal.employee_id =   emp1.employee_id

但我需要dept_name，paid_loc，country_paid基于min（date）基于employee表，如下所示：

employee_sal.dept_code，Temp1.emp_id，temp1.dept_name，temp1.paid_loc，temp1.country_paid，min_date

这些应该是与员工的最小（日期）相关联的值。

Answer 1

With temp1 as
(Select employee_id as emp_id, min(date) as min_date from employee where employee_id in (select employee_id from employee_sal) group by employee_id)
Select
employee_sal.dept_code,
Temp1.emp_id,
employee_sal.dept_name,
employee_sal.paid_loc,
employee_sal.country_paid,
min_date
from employee_sal inner join temp1 on employee_sal.employee_id = emp1.employee_id And employee_sal.min_date = emp1.min_date