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Sql 对列值求和，并检查空条件_Sql_Sql Server_Sql Server 2008 - Fatal编程技术网
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Sql 对列值求和，并检查空条件

sql sql-server sql-server-2008

Sql 对列值求和，并检查空条件,sql,sql-server,sql-server-2008,Sql,Sql Server,Sql Server 2008,我将此列转换为货币，在此基础上，我需要对此列的值求和，并需要设置一个验证，就像如果该列有空值，则必须返回零一样 select '$ '+ CONVERT(varchar,CONVERT(decimal(10,0),CONVERT(money, Amt_Value)),1) as [Amount] from Products 使用SUM和ISNULL select '$ '+ CONVERT(varchar,CONVERT(decimal(10,0),CONVERT(money, ISNUL

我将此列转换为货币，在此基础上，我需要对此列的值求和，并需要设置一个验证，就像如果该列有空值，则必须返回零一样

select '$ '+ CONVERT(varchar,CONVERT(decimal(10,0),CONVERT(money, Amt_Value)),1) as  [Amount]  from Products
使用SUM和ISNULL

select '$ '+ CONVERT(varchar,CONVERT(decimal(10,0),CONVERT(money, ISNULL(SUM(Amt_Value),0.00))),1) as  [Amount]  from Products