Question

我有以下sql代码。我使用带有日期间隔的WHERE子句。我的问题是我只希望在select语句的特定部分使用日期间隔。

我想将WHERE子句DATE限制为我在QtyInPeriod和ProfitInPeriod上的select而不是所选的其他列（Lines.Item，Inventory.ItemAlternative，Inventory.OnHandPhys，Inventory.Allocated，Inventorry.CostPrice，Brand＆amp; StockStatus）

我是否需要在2个单独的sql查询中获取数据，还是可以将WHERE DATE子句限制为select语句的一部分？

SELECT lines.Item,
       Inventory.ItemAlternative,
       Inventory.OnHandPhys,
       Inventory.Allocated,
       Inventory.CostPrice,
       SUM(lines.Invoiced)*-1 AS QtySoldInPeriod,
       (SUM(lines.AmountBase-lines.CostAmount))*-1 AS ProfitInPeriod,
       replace(vInventoryOptional2Values.Value, '/', '') AS Brand,
       Inventory.Optional3 AS StockStatus
FROM lines
INNER JOIN inventory ON lines.item = Inventory.item
INNER JOIN vInventoryOptional2Values ON Inventory.Optional2 = vInventoryOptional2Values.RecordID
WHERE Inventory.Item = 'ITEM#'
  AND Lines.Date >= 'DATE'
  AND Lines.Date <= 'DATE'
  AND lines.Invoiced < 0
  AND Inventory.Status = 0
  AND Inventory.Optional3 <> 3
GROUP BY Lines.Item,
         Inventory.Optional3,
         Inventory.ItemAlternative,
         Inventory.OnHandPhys,
         Inventory.CostPrice,
         vInventoryOptional2Values.Value,
         Inventory.Allocated
HAVING SUM(lines.AmountBase-lines.CostAmount) < 0

编辑：我尝试使用子查询，但无法使其工作：

SELECT lines.Item,
       Inventory.ItemAlternative,
       Inventory.OnHandPhys,
       Inventory.Allocated,
       Inventory.CostPrice,
       replace(vInventoryOptional2Values.Value, '/', '') AS Brand,
       Inventory.Optional3 AS StockStatus
  (SELECT SUM(lines.Invoiced)*-1 AS QtySoldInPeriod
   FROM (lines.item
         WHERE Lines.Date >= '2014-01-01'
           AND Lines.Date <= '2014-01-31' ) )
FROM lines
INNER JOIN inventory ON lines.item = Inventory.item
INNER JOIN vInventoryOptional2Values ON Inventory.Optional2 = vInventoryOptional2Values.RecordID
WHERE Inventory.Item = 'a158wa'
  AND lines.Invoiced < 0
  AND Inventory.Status = 0
  AND Inventory.Optional3 <> 3
GROUP BY Lines.Item,
         Inventory.Optional3,
         Inventory.ItemAlternative,
         Inventory.OnHandPhys,
         Inventory.CostPrice,
         vInventoryOptional2Values.Value,
         Inventory.Allocated

Answer 1

你不能。形式上，查询返回一组行，WHERE子句作为过滤器应用于行集。也就是说，它是被过滤的行集，而不是特定的列。

考虑使用Union运算符组合两个select语句。

Answer 2

您应该使用子查询，并在更新的问题中，您的语法错误，尝试使用，

SELECT lines.Item,
       Inventory.ItemAlternative,
       Inventory.OnHandPhys,
       Inventory.Allocated,
       Inventory.CostPrice,
       replace(vInventoryOptional2Values.Value, '/', '') AS Brand,
       Inventory.Optional3 AS StockStatus,
       (SELECT SUM(l.Invoiced) * -1 
        FROM lines l
        WHERE l.Date >= '2014-01-01'
           AND l.Date <= '2014-01-31' 
           AND l.Item = lines.Item) AS QtySoldInPeriod
FROM lines
INNER JOIN inventory ON lines.item = Inventory.item
INNER JOIN vInventoryOptional2Values ON Inventory.Optional2 = vInventoryOptional2Values.RecordID
WHERE Inventory.Item = 'a158wa'
  AND lines.Invoiced < 0
  AND Inventory.Status = 0
  AND Inventory.Optional3 <> 3
GROUP BY Lines.Item,
         Inventory.Optional3,
         Inventory.ItemAlternative,
         Inventory.OnHandPhys,
         Inventory.CostPrice,
         vInventoryOptional2Values.Value,
         Inventory.Allocated

将WHERE子句限制为sql中的特定SELECT语句

2 个答案: