Question

我想将 LIKE 用于我的 CONVERT 输出的列，就像下面的代码一样。但它没有用，因为我选择的列不属于我一直使用的视图。我有办法这样做吗？或者我真的要创建一个新视图吗？

SELECT 
[DESCRIPTION],
CONVERT(varchar, CAST([ITEM VALUE]*[QTY] AS money), 1) AS [TOTAL AMOUNT],
FROM vwItemList
WHERE [TOTAL AMOUNT] LIKE '%' + @targetItem + '%'

Answer 1

您必须使用子查询或重复它，因为您无法引用WHERE - 子句中的别名

SELECT 
[DESCRIPTION],
CONVERT(varchar, CAST([ITEM VALUE]*[QTY] AS money), 1) AS [TOTAL AMOUNT],
FROM vwItemList
WHERE CONVERT(varchar, CAST([ITEM VALUE]*[QTY] AS money), 1) LIKE '%' + @targetItem + '%'

另一个选项，CTE类似于子查询：

WITH CTE AS
(
    SELECT [Description], 
           CONVERT(VARCHAR, Cast([Item value] * [Qty] AS MONEY), 1) AS [TOTAL AMOUNT], 
    FROM   Vwitemlist 
)
SELECT [Description],
       [TOTAL AMOUNT]
FROM   CTE 
WHERE  [TOTAL AMOUNT] LIKE '%' + @targetItem + '%'

选择要用于LIKE的输出列

1 个答案: