Question

我想在下面的sql语句中使用'OR'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

请帮我在上述声明中使用OR条件，我需要在OR条件下检查3个语句。

Answer 1

您好像忘了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)

Answer 2

这是您第二次发布相同的问题。

您正在使用OR条件。

要么您不理解优先级，搜索条件，要么数据不是您所假设的。

订单是：
按位（你没有任何这些）
（）
不
和
或者

打破查询。

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拉出来，因为它在每个或作为和

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

如何在sql语句中使用`OR`条件？

2 个答案: