如何在sql语句中使用`OR`条件?
我想在下面的sql语句中使用'OR'条件,请帮助我这样做如何在sql语句中使用`OR`条件?,sql,sql-server,sql-server-2008,tsql,Sql,Sql Server,Sql Server 2008,Tsql,我想在下面的sql语句中使用'OR'条件,请帮助我这样做 SELECT DATE, SecurityId FROM StateStreet INNER JOIN Securities ON StateStreet.SecurityID = Securities.securityid AND ( (SecurityName LIKE '% R V %' AND Quantity < 0 AND
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
选择日期、安全ID
来自史泰街
StateStreet.SecurityID=Securities.SecurityID上的内部联接证券
和((SecurityName,如“%R V%”
数量<0
和PortfolioId=@PortfolioId)
或(SecurityName与“%R V%”不同
和数量>0
和PortfolioId=@PortfolioId)
或(值=数量)
和证券。PortfolioId=@PortfolioId)
)
其中CONVERT(DATETIME,PeriodEndDate)=@PositionDate
请帮助我使用上述声明中的或条件,我需要检查或条件中的3个声明 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)
选择
日期,
安全ID
从…起
史泰街
内连接
StateStreet上的证券.SecurityID=Securities.SecurityID
哪里
(SecurityName如“%R V%”,数量<0,PortfolioId=@PortfolioId)
或
(SecurityName与“%R V%”不同,数量大于0,PortfolioId=@PortfolioId)
或
(值=数量和证券。PortfolioId=@PortfolioId)
这是您第二次发布相同的问题
您正在使用或设置条件
要么您不了解优先级、搜索条件,要么数据不是您假设的
顺序是:按位(您没有这些选项)
()
不
和
或 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向上拉,就像它在每个中一样,或者像AND一样
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
考虑到表和所有列都存在,您的语法似乎没有问题。那你有什么问题?也许您可以描述您期望的输出?您可能对“和”和“或”有混淆。您已经在使用或条件???我的问题是我想检查3个条件1。(SecurityName像“%rv%”,数量<0,PortfolioId=@PortfolioId)2。(SecurityName不像“%rv%”,数量>0,PortfolioId=@PortfolioId)3.(Value=Quantity AND Securities.PortfolioId=@PortfolioId)使用单独的where条件将问题分解为3个查询,然后合并查询可能更容易、更高效together@MarcinJuraszek如果条件在“where”子句或“join”子句中,则无所谓(性能差异),所以他的质疑是正确的。