如何在sql中的NOT EXISTS中使用where子句？

Question

我需要在sql中的NOT EXISTS子句中放置where条件。

在下面需要检查重复记录，在下面的SQL查询中我需要把Date ='2012-05-07'和SecurityId ='52211'但问题是使用内部连接而且我是新的bie没有得到如何请把这些条款请帮忙。

SELECT DISTINCT

    SecurityPriceId

FROM 
    dbo.Indicative Bond
    INNER JOIN 
    dbo.BondPrice BondPrice ON 
        Indicative.SecurityId = BondPrice.SecurityId AND
        BondPrice.SecurityPriceSourceId = @SecurityPriceSourceComposite
WHERE
    Date = @Date -- Date='2012-05-07' like this
    AND
    NOT EXISTS
    (
        SELECT
            'z'
        FROM
            dbo.Reporting_BondPrices
    WHERE
        Reporting_BondPrices.SecurityId = BondPrice.SecurityId AND
        Reporting_BondPrices.Date = BondPrice.Date 
        --how can i put Date='2012-05-07' and SecurityId='52211'                 
    )

Answer 1

更新后，我想（??）你想要这个吗？

SELECT DISTINCT

    BondPrice.SecurityPriceId

FROM 
    dbo.Reporting_BondIndicative Reporting_BondIndicative
    INNER JOIN 
    dbo.BondPrice BondPrice ON 
        Reporting_BondIndicative.SecurityId = BondPrice.SecurityId AND
        BondPrice.SecurityPriceSourceId = @SecurityPriceSourceComposite
WHERE
    BondPrice.Date = @Date -- BondPrice.Date='2012-05-07' like this
    AND
    NOT EXISTS
    (
        SELECT
            'z'
        FROM
            dbo.Reporting_BondPrices
    WHERE
        Reporting_BondPrices.SecurityId = BondPrice.SecurityId AND
        Reporting_BondPrices.Date = BondPrice.Date 
        --how can i put Date='2012-05-07' and SecurityId='52211'                 
        --simply put them in with and
        and Reporting_BondPrices.SecurityId='52211' and Reporting_BondPrices.Date='20120507'
    )

早期尝试解码您的问题：

您可以为表格添加别名，如下所示：

 
 
 
  
  select ... from table as t1 --t1 will be the outer table where not exists(select ... from table as t1 --t2 will be the inner table where t1.column1=t2.column1 and t1.column2<>t2.column2)