Java 如何合并两个sql查询结果？一个查询具有分组依据

我有一张像下面这样的桌子

我使用Java作为我的后端。 我试过这些问题

选择供应商、类型、数量 从报告中； 选择供应商、数量 来自报告 其中日期='2020-04-05' 按供应商分组； 我需要结合以上两个查询结果。有人能指导我继续吗。

试试看：

WITH a AS (
    SELECT vendor, ont_type, quantity 
    FROM cpe_portal.ontfereports
), b as (
    SELECT vendor, SUM(quantity) as quantityb 
    FROM cpe_portal.ontfereports 
    WHERE date = '2020-04-05' 
    GROUP BY vendor
)
SELECT a.vendor, a.ont_type, a.quantity, b.quantityb
FROM a join b ON a.vendor = b.vendor

---

请将数据显示为文本而不是图像

vendor, type, quantity
'vendor1', '2511', '200'

'vendor1', '5120', '350'

'vendor1', '2520', '150'

'vendor1', '5114', '400'

vendor, SUM(quantity)
'vendor1', '1100'

'vendor2', '20600'

WITH a AS (
    SELECT vendor, ont_type, quantity 
    FROM cpe_portal.ontfereports
), b as (
    SELECT vendor, SUM(quantity) as quantityb 
    FROM cpe_portal.ontfereports 
    WHERE date = '2020-04-05' 
    GROUP BY vendor
)
SELECT a.vendor, a.ont_type, a.quantity, b.quantityb
FROM a join b ON a.vendor = b.vendor