SQL选择查询到另一个查询

我是SQL的初学者，所以如果我的术语/编码有点偏离，或者可能偏离太远，请提前道歉。 我有两个问题想合并成一个问题。第一种方法是创建包含两个特定进程的ProductID列表。 然后我想在第二个查询中使用这些ProductID

下面是正确的吗？ 按产品分组。productid具有（sum（当processid类似于'pick%'时为1 else 0 end）+sum（当processid类似于'pack%'时为1 else 0 end时为1 else 0 end）=2）

任何帮助都将不胜感激，希望这是有意义的

SELECT
Products.ProductID
FROM Products
INNER JOIN Categories ON Products.Category = Categories.Category
INNER JOIN Boms ON Products.Product = Boms.Product AND Boms.BomVersion = Products.BomVersion
LEFT OUTER JOIN Products AS Comp ON Boms.Component = Comp.Product 
LEFT OUTER JOIN Processes  ON Boms.Process = Processes.Process
WHERE   
products.active = 1
and Categorys.Categoryid in ('5','20')
group by products.productid
having (sum(case when processid like 'pick%' then 1 else 0 end) + sum(case when processid like 'pack%' then 1 else 0 end) = 2)
order by products.productid


SELECT
Products.ProductID,
Products.productdescription,
Boms.Type As Type,
Comp.ProductId as Component,
Comp.productdescription,
Boms.Quantity,
BomVersions.BomVersionID,
Processes.processid,
Processes.ProcessDescription
FROM Products
INNER JOIN Categories ON Products.Category = Categories.Category
INNER JOIN Boms ON Products.Product = Boms.Product AND Boms.BomVersion = Products.BomVersion
LEFT OUTER JOIN Products AS Comp ON Boms.Component = Comp.Product 
LEFT OUTER JOIN Processes  ON Boms.Process = Processes.Process
INNER JOIN BomVersions ON Products.BomVersion = BomVersions.BomVersion
WHERE   
products.active = 1

order by products.productid, products.type,comp.productid

---

要组合它们，可以执行以下操作

SELECT b.*
FROM 
  (SELECT Products.ProductID FROM Products INNER JOIN ...) AS a
   INNER JOIN
  (SELECT Products.ProductID, Products.productdescription, Boms.Type As Type, ...) AS b
   ON a.ProductID = b.ProductID

---

要组合它们，可以执行以下操作

SELECT b.*
FROM 
  (SELECT Products.ProductID FROM Products INNER JOIN ...) AS a
   INNER JOIN
  (SELECT Products.ProductID, Products.productdescription, Boms.Type As Type, ...) AS b
   ON a.ProductID = b.ProductID

---

它返回正确的数据吗？它返回正确的数据吗？