Sql server SQL抛出算术溢出错误

在运行一个简单的聚合函数时，我遇到了一个“算术溢出错误，将表达式转换为数据类型int”错误（请参阅下面的代码）。当我缩小日期范围时，我可以看到结果实际上超过了INT数据类型限制……我已经尝试将整个表达式转换为BIGINT w/o成功。有人知道我如何解决这个问题吗

所有这3个查询都会抛出上述相同的错误：

Select  (SUM(ACDTalkTimeInSec) + SUM(TotAcwTimeInSec) + SUM(HoldTimeInSec)) as AHT
From ColTelephony.dbo.vwACDSkillCombined acd
Where WorkDte between '1/2/2018' AND '10/5/2018'

Select  CAST(Cast(SUM(ACDTalkTimeInSec) AS BIGINT) + CAST(SUM(TotAcwTimeInSec) AS BIGINT) + CAST(SUM(HoldTimeInSec) AS BIGINT) AS BIGINT) as AHT
From ColTelephony.dbo.vwACDSkillCombined acd
Where WorkDte between '1/2/2018' AND '10/5/2018'

Select  Cast(((SUM(ACDTalkTimeInSec) + SUM(TotAcwTimeInSec) + SUM(HoldTimeInSec))) AS BIGINT) as AHT
From ColTelephony.dbo.vwACDSkillCombined acd
Where WorkDte between '1/2/2018' AND '10/5/2018'

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SMor在评论中回答了这个问题，但下面是sql：

Select SUM(CAST(ACDTalkTimeInSec AS BIGINT)) + SUM(CAST(TotAcwTimeInSec AS BIGINT)) 
    + SUM(CAST(HoldTimeInSec AS BIGINT)) as AHT
From ColTelephony.dbo.vwACDSkillCombined acd
Where WorkDte between '1/2/2018' AND '10/5/2018'

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如果SMor发布了他们的答案，那么接受它。我没有测试代码，所以请原谅任何拼写错误。

您需要在求和之前进行转换，而不是之后。谢谢！工作完美！我讨厌答案这么简单，哈哈。请作为答案发布，我会这样标记。再次感谢！我在寻找同样的问题。谢谢@Michael