0

我想在下面的 sql 语句中使用“或”条件，请帮我这样做。

   SELECT DATE, SecurityId
    FROM StateStreet
    INNER JOIN Securities ON StateStreet.SecurityID = Securities.securityid
    AND (     (SecurityName LIKE '% R V %'
               AND Quantity < 0
               AND PortfolioId =@portfolioID)
           OR (SecurityName NOT LIKE '% R V %'
               AND Quantity > 0
               AND PortfolioId=@PortfolioID)
           OR (Value = Quantity
               AND Securities.PortfolioId =@PortfolioID) 
         )
   WHERE CONVERT(DATETIME,PeriodEndDate) = @PositionDate

请帮我在上面的语句中使用 OR 条件，我需要检查 OR 条件中的 3 个语句。

4

2 回答 2

2

看起来您忘记了WHERE子句：

SELECT 
    DATE,
    SecurityId              
FROM
    StateStreet 
INNER JOIN
    Securities ON StateStreet.SecurityID =  Securities.securityid 
WHERE
    (SecurityName LIKE '% R V %' AND Quantity < 0  AND PortfolioId = @portfolioID)
OR
    (SecurityName NOT LIKE '% R V %' AND Quantity > 0  AND PortfolioId = @PortfolioID)
OR
    (Value = Quantity AND Securities.PortfolioId = @PortfolioID)
于 2013-03-29T06:39:49.220 回答
0

这是您第二次发布相同的问题。

您正在使用 OR 条件。

要么你不了解优先级、搜索条件，要么数据不是你假设的。

顺序是：
按位（你没有这些）
()
Not
And
Or

分解查询。

SELECT DATE, SecurityId, SecurityName, Quantity, Value, PortfolioId
FROM StateStreet
INNER JOIN Securities 
   ON StateStreet.SecurityID = Securities.securityid
WHERE CONVERT(DATETIME,PeriodEndDate) = @PositionDate

然后
您可以将 AND PortfolioId =@portfolioID 拉起来，因为它在每个或作为一个和

SELECT DATE, SecurityId, SecurityName, Quantity, Value, PortfolioId
FROM StateStreet
INNER JOIN Securities 
   ON StateStreet.SecurityID = Securities.securityid 
  AND PortfolioId = @portfolioID
WHERE CONVERT(DATETIME,PeriodEndDate) = @PositionDate 

SELECT DATE, SecurityId, SecurityName, Quantity, Value, PortfolioId
FROM StateStreet
INNER JOIN Securities 
   ON StateStreet.SecurityID = Securities.securityid 
  AND PortfolioId = @portfolioID
  AND (      Value = Quantity
        OR ( SecurityName LIKE '% R V %' )
      )
WHERE CONVERT(DATETIME,PeriodEndDate) = @PositionDate
于 2013-03-29T14:57:22.997 回答