SQL如何获取不包含产品的类别？

Question

SELECT DISTINCT {c2.name} 
FROM 
    {BrandCategory AS c  
    JOIN CategoryProductRelation AS c2p  
    ON  {c.pk} = {c2p.source}  
    JOIN Product AS p  
    ON  {c2p.target} = {p.pk}  
    JOIN CategoryProductRelation AS c2p2  
    ON  {p.pk} = {c2p2.target}  
    JOIN TaxonomyCategory AS c2 ON {c2.pk} = {c2p2.source} 
    JOIN CatalogVersion AS cat 
    ON {c.catalogVersion} = {cat.PK}} 
WHERE 
    {c.code} = 'brand-MCH' 
    AND{cat.version} = 'Online' 
    AND {c2.code} NOT LIKE'%webFamily%' 
    AND {p.code} IN ('35365','34299')

以上查询提取包含产品'35365'和'34299'的分类法类别

Result:
Passenger
Touring
All-Season
Truck

All Categories:
All-Season
Performance
Passenger
Winter
Touring
Summer
Truck
All-Terrain
Competition
Lawn

现在要求是取出所有其他分类法类别，这意味着那些不包含产品'35365'和'34299'的类别

尝试1 :(失败）（不是IN）

SELECT  DISTINCT {c2.name}
    FROM  {BrandCategory AS c
    JOIN  CategoryProductRelation AS c2p  ON {c.pk} = {c2p.source}
    JOIN  Product AS p  ON {c2p.target} = {p.pk}
    JOIN  CategoryProductRelation AS c2p2  ON {p.pk} = {c2p2.target}
    JOIN  TaxonomyCategory AS c2  ON {c2.pk} = {c2p2.source}
    JOIN  CatalogVersion AS cat  ON {c.catalogVersion} = {cat.PK}}
    WHERE  {c.code} = 'brand-MCH' AND{cat.version} = 'Online'
      AND  {c2.code} NOT LIKE'%webFamily%'
      AND  {p.code} NOT IN ('35365','34299') 

尝试2 :(失败）（不存在）

SELECT  DISTINCT {c2.name}
    FROM  {BrandCategory AS c
    JOIN  CategoryProductRelation AS c2p  ON {c.pk} = {c2p.source}
    JOIN  Product AS p  ON {c2p.target} = {p.pk}
    JOIN  CategoryProductRelation AS c2p2  ON {p.pk} = {c2p2.target}
    JOIN  TaxonomyCategory AS c2  ON {c2.pk} = {c2p2.source}
    JOIN  CatalogVersion AS cat  ON {c.catalogVersion} = {cat.PK}}
    WHERE  {c.code} = 'brand-MCH' AND{cat.version} = 'Online'
      AND  {c2.code} NOT LIKE'%webFamily%'
      AND  {c2.code}
      AND  NOT EXISTS ({{
        SELECT  DISTINCT {c3.name}
            FROM  {BrandCategory AS c
            JOIN  CategoryProductRelation AS c2p  ON {c.pk} = {c2p.source}
            JOIN  Product AS p  ON {c2p.target} = {p.pk}
            JOIN  CategoryProductRelation AS c2p2  ON {p.pk} = {c2p2.target}
            JOIN  TaxonomyCategory AS c3  ON {c3.pk} = {c2p2.source}
            JOIN  CatalogVersion AS cat  ON {c.catalogVersion} = {cat.PK}}
            WHERE  {c3.name}={c2.name}
              AND  {c.code} = 'brand-MCH' AND{cat.version} = 'Online'
              AND  {c3.code} NOT LIKE'%webFamily%'
              AND  {p.code} IN ('35365','34299')}}
                      ) 

尝试3 :(失败）（不在副词中）

SELECT  DISTINCT {c2.name}
    FROM  {BrandCategory AS c
    JOIN  CategoryProductRelation AS c2p  ON {c.pk} = {c2p.source}
    JOIN  Product AS p  ON {c2p.target} = {p.pk}
    JOIN  CategoryProductRelation AS c2p2  ON {p.pk} = {c2p2.target}
    JOIN  TaxonomyCategory AS c2  ON {c2.pk} = {c2p2.source}
    JOIN  CatalogVersion AS cat  ON {c.catalogVersion} = {cat.PK}}
    WHERE  {c.code} = 'brand-MCH' AND{cat.version} = 'Online'
      AND  {c2.code} NOT LIKE'%webFamily%'
      AND  {c2.name} NOT IN ({{
        SELECT  DISTINCT {c2.name}
            FROM  {BrandCategory AS c
            JOIN  CategoryProductRelation AS c2p  ON {c.pk} = {c2p.source}
            JOIN  Product AS p  ON {c2p.target} = {p.pk}
            JOIN  CategoryProductRelation AS c2p2  ON {p.pk} = {c2p2.target}
            JOIN  TaxonomyCategory AS c2  ON {c2.pk} = {c2p2.source}
            JOIN  CatalogVersion AS cat  ON {c.catalogVersion} = {cat.PK}}
            WHERE  {c.code} = 'brand-MCH' AND{cat.version} = 'Online'
              AND  {c2.code} NOT LIKE'%webFamily%'
              AND  {p.code} IN ('35365','34299')}}
                          ) 

...

Result:
All-Season
Performance
Passenger
Winter
Touring
Summer
Truck
All-Terrain
Competition
Lawn

Expected:
Performance
Winter
Summer
All-Terrain
Competition
Lawn

请帮助您获取那些不包含最佳查询的类别，以保持性能。

此外，如果有一种方法可以获得所有带有一些标志的类别以区分哪个产品包含true，那么这将是绝对的Gold，因为在这里我们按两次DB获取包含的类别，然后是不包含的类别通过点播呼叫包含

注意：这些本质上是SQL查询，但只是稍微修改了这些大括号，以支持Hybris Framework中的灵活搜索查询格式

Answer 1

查询 - 1.使用NOT IN-

SELECT {c.code}
FROM 
{Product as p
    join CategoryProductRelation as c2p on {c2p.target} = {p.pk}
    join Category as c on {c2p.source} = {c.pk}}
WHERE
{p.code} NOT IN ('35365','34299')

2. 使用NOT EXISTS-

   SELECT {c.code}
   FROM 
   {CategoryProductRelation as c2p
   join Category as c on {c2p.source} = {c.pk}}
   WHERE 
   NOT EXISTS ({{SELECT {p.code} FROM {Product as p} WHERE {p.code} IN ('35365','34299') and {c2p.target}={p.pk}}})

3. 使用子查询 -

   SELECT {c.code}
   FROM 
   {Product as p
   join CategoryProductRelation as c2p on {c2p.target} = {p.pk}
   join Category as c on {c2p.source} = {c.pk}}
   WHERE 
   {p.pk} IN ({{SELECT {pk} FROM {Product} WHERE {code} IN ('35365','34299')}})

Answer 2

首先看看NOT EXISTS和NOT IN是否给出正确的值。

对于EXISTS，不要打扰DISTINCT，也不要指定列。这足以：

NOT EXISTS ( SELECT 1 FROM ... )

撕掉与问题无关的所有JOIN。这样可以更容易地看出错误。

什么是牙箍？也许你应该删除[mysql]标签？