SQL SELECT在多个国家/地区提供的产品

我有这张有市场和价格的水果表（这张表实际上只是摘录）

现在，我只想选择在德国、英国、IT和美国四个市场都有售的（或集团）产品。这将导致下表：

Product Market  Price
Apple   UK  4
Apple   DE  5
Apple   US  4
Apple   IT  3
Peach   IT  12
Peach   DE  10
Peach   UK  10
Peach   US  11

我已经尝试过使用group by+have+Count Distinct，但它不起作用。见下文

SELECT
market, product, AVG(price) as pr
FROM
    fruits
WHERE       
    market IN (DE, IT, UK, US)
GROUP BY
    market, product
HAVING Count (DISTINCT market=4)

我猜我使用计数的方式不对。

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请帮忙。谢谢

拥有-条件

计数（不同市场=4）

应该是：

SELECT
market, product, AVG(price) as pr
FROM
    fruits
WHERE       
    market IN (DE, IT, UK, US)
GROUP BY
    market, product
HAVING Count (DISTINCT market) = 4

---

产品没有重复的国家/地区。我建议使用简单的窗口功能：

select f.*
from (select f.*, count(*) over (partition by product) as cnt
      from fruits f
      where market in ('DE', 'IT', 'UK', 'US')
     ) f
where cnt = 4;

---

我理解答案，但不理解投票结果<代码>计数（不同市场）在此查询中总是

1

。

select f.*
from (select f.*, count(*) over (partition by product) as cnt
      from fruits f
      where market in ('DE', 'IT', 'UK', 'US')
     ) f
where cnt = 4;