Php 将两个MySql组合成一个查询

为了提高效率，我需要将两个sql查询组合成一个查询，只是不知道如何做。基本上，我需要查询我的供应商，然后针对每个供应商检查列表表是否有多条基于供应商id匹配的记录，如果有，则我需要返回供应商名称和id。以下是我的两个查询：

问题1：

问题2：

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您已经在第二个查询中加入了供应商，因此您只需将供应商名称和id添加到您的SELECT and GROUP BY

SELECT          s.name, s.id 
FROM            Supplier s

SELECT      l.asin, 
            l.id, 
            COUNT(*) c
FROM        Listing l
LEFT JOIN   Product p
 ON         p.id = l.product_id
LEFT JOIN   Supplier s
 ON         p.supplier_id = s.id 
WHERE       (l.matchValidated IS NULL OR l.matchValidated = 0)
AND         s.id = SUPPLIER_ID_GOES_HERE
GROUP BY    l.asin HAVING c > 1);

SELECT      l.asin, 
            l.id,
            s.name AS supplier_name,
            s.id AS supplier_id, 
            COUNT(*) c
FROM        Listing l
LEFT JOIN   Product p
 ON         p.id = l.product_id
LEFT JOIN   Supplier s
 ON         p.supplier_id = s.id 
WHERE       (l.matchValidated IS NULL OR l.matchValidated = 0)
GROUP BY    l.asin, l.id, s.name, s.id 
HAVING      c > 1;