选择e.first_name,e.last_name,e.first_name || e.last_name“ Name”,d。部门名称,d.manager_id,l.country_id,l.city来自员工e加入部门d在e.department_id = d.department_id上加盟地点l在d.location_id = l.location_id上其中d.manager_id =&d.manager_id;
删除并在您的where语句中,我猜这是问题所在。
“名称”,d.department_name,d.manager_id,l.country_id,l.city来自雇员e在e.department_id = d.department_id上加入部门d.location_id = l.location_id 其中d .manager_id = d.manager_id;