C# 如何获取Mysql左连接中的计数？

我有部门和员工的桌子。 架构就像

department(id, name)
employee(id,depid,salary)

我需要统计每个部门的员工人数。 我在mysql中的查询如下

select d.depname,count(e.id) 
from employe as e left join department as d on d.depid 
where e.depid=d.depid group by d.depid;

但结果集只包含包含员工的部门。 我需要的是那些拥有0名员工的部门，就像零本身一样

select d.depname,count(e.id) from employee as e 
right join department as d on d.depid = e.depid 
group by d.depid;

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因此，只需交换表名即可

SELECT  d.name, 
        COUNT(e.id) totalEmployeeCount
FROM    department AS d 
        LEFT JOIN employee AS e 
            ON e.depid = d.id
GROUP   BY d.id;

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