如何在sql語句中使用`OR`條件？

Question

我想在下面的sql語句中使用'OR'條件請幫我這樣做。

   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 

請幫我在上述聲明中使用OR條件，我需要在OR條件下檢查3個語句。

Answer 1

看起來你忘記了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

這是您第二次發布相同的問題。

您正在使用OR條件。

要么您不理解優先級，搜索條件，要么數據不是您所假設的。

訂單是：
按位（你沒有任何這些）
（）
不
和
要么

打破查詢。

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

然后
您可以將AND PortfolioId = @ portfolioID拉出來，因為它在每個或作為和

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