Question

我正在尝试加入以下两个查询：

InventoryItemID似乎无法使其发挥作用。我已经尝试了很多解决方案，但无法绕过它。我正在使用Microsoft SQL。

select t1.itemcode, t1.Description, t1.MinimumQuantity, t1.QuantityInStore, t2.qty as OnOrder, t1.InventoryItemID
from
    (
select i.InventoryItemID,  i.ItemCode, i.Description, MinimumQuantity, ii.QuantityInStore
    from InventoryInfo i
    inner join InventoryStoreInfo ii
        on i.InventoryItemID = ii.inventoryitemid
    inner join PurchaseOrderItemInfo p
        on ii.InventoryItemID = p.InventoryItemID
    inner join PurchaseOrderInfo po
        on p.PurchaseOrderID = po.PurchaseOrderID
    inner join VendorInfo v
        on po.VendorID = v.VendorID
    where InventoryCategoryID = '1'
    and i.IsActive = '1'
    ) as t1
left join 
    (
select InventoryItemID, sum(Quantity) as QTY, Description
    from PurchaseOrderItemInfo p
    inner join PurchaseOrderInfo po
        on p.PurchaseOrderID = po.PurchaseOrderID
    where p.status = '0'
    group by InventoryItemID, Description
    ) as t2
on t1.inventoryitemid = t2.inventoryitemid

和

select pi.InventoryItemID, v.VendorName, max(p.PODateTime) as latest
from PurchaseOrderItemInfo pi
inner join PurchaseOrderInfo p
    on pi.PurchaseOrderID = p.PurchaseOrderID
inner join InventoryInfo i
    on pi.InventoryItemID = i.InventoryItemID
inner join VendorInfo v
    on p.VendorID = v.VendorID
group by pi.inventoryitemid, p.PODateTime,i.description, v.VendorName
order by latest desc

Answer 1

您在括号之间包装每个查询以创建子查询(queryA)和(queryB)

然后为每个子查询分配别名并执行连接

SELECT aliasA.*, aliasB.*
FROM
  (queryA) aliasA
INNER JOIN  (queryB)  aliasB
  ON aliasA.ID =  aliasB.ID

使用您的查询

SELECT FIRSTQUERY.*, SECONDQUERY.*
FROM 
    (
    select t1.itemcode, t1.Description, t1.MinimumQuantity, t1.QuantityInStore, t2.qty as OnOrder, t1.InventoryItemID
    from
        (
        select i.InventoryItemID,  i.ItemCode, i.Description, MinimumQuantity, ii.QuantityInStore
        from InventoryInfo i
        inner join InventoryStoreInfo ii
            on i.InventoryItemID = ii.inventoryitemid
        inner join PurchaseOrderItemInfo p
            on ii.InventoryItemID = p.InventoryItemID
        inner join PurchaseOrderInfo po
            on p.PurchaseOrderID = po.PurchaseOrderID
        inner join VendorInfo v
            on po.VendorID = v.VendorID
        where InventoryCategoryID = '1'
        and i.IsActive = '1'
        ) as t1
    left join 
        (
        select InventoryItemID, sum(Quantity) as QTY, Description
        from PurchaseOrderItemInfo p
        inner join PurchaseOrderInfo po
            on p.PurchaseOrderID = po.PurchaseOrderID
        where p.status = '0'
        group by InventoryItemID, Description
        ) as t2
    on t1.inventoryitemid = t2.inventoryitemid
    ) FIRSTQUERY
    INNER JOIN
    (
    select pi.InventoryItemID, v.VendorName, max(p.PODateTime) as latest
    from PurchaseOrderItemInfo pi
    inner join PurchaseOrderInfo p
        on pi.PurchaseOrderID = p.PurchaseOrderID
    inner join InventoryInfo i
        on pi.InventoryItemID = i.InventoryItemID
    inner join VendorInfo v
        on p.VendorID = v.VendorID
    group by pi.inventoryitemid, p.PODateTime,i.description, v.VendorName
    order by latest desc
    ) SECONDQUERY
    ON FIRSTQUERY.InventoryItemID  = SECONDQUERY.InventoryItemID

加入两个查询

1 个答案: