Plsql Oracle Apex中的叠层柱杆

我对OracleApex和PL/SQL都是相当陌生的，我想创建一个叠层柱状图。我有两个图表，基本上我想合并为一个堆叠的图表。 下面是图表1的SQL查询：

select slsc.status_code,
slsc.display_order,
count(*) cnt
from eba_sales_leads sl
join eba_sales_lead_status_codes slsc
on sl.lead_status_id = slsc.id
group by slsc.status_code,
slsc.display_order
order by slsc.display_order

第二个图表甚至很简单，不需要从其他表中查看

SELECT NULL Link, Lead_Owner AS "Owner", COUNT (*) AS "Tasks"
FROM eba_sales_leads
GROUP BY Lead_Owner
ORDER BY Lead_Owner

现在，除了分别显示这两个图形外，我想显示一个Lead_所有者的条形图，其中他们的状态（来自eba_sales_Lead_status_codes表的文本）将以堆叠形式显示