在一个SQL查询中使用多个聚合函数

Question

My table is as below

WORKS ( emp-name, comp-name, salary)

I want to find the comp-name which pays to lowest total salary to it's employees

I tries below query, but it gives SUM of salaries for all comp-name

SELECT  comp-name, MIN(sal) as lowest
FROM
(
    SELECT comp-name, SUM(salary) as sal from WORKS group by comp-name
)tmt group by comp-name;

How do I find only one company which pays lowest total salary.

Answer 1

You can use LIMIT to get only one company with lowest total salary , also need to need to sort in ascending order

     SELECT comp-name, 
     SUM(salary) as sal 
     from WORKS 
     group by comp-name
     Order by sal ASC
     LIMIT 1