SQL 引发算术溢出错误答案

【问题标题】：SQL Throwing an Arithmetic Overflow ErrorSQL 引发算术溢出错误
【发布时间】：2018-10-10 01:42:22
【问题描述】：

运行简单聚合函数时出现“将表达式转换为数据类型 int 的算术溢出错误”错误（请参见下面的代码）。当我限制日期范围时，我可以看到结果实际上超出了 INT 数据类型限制...我尝试将整个表达式转换为 BIGINT 没有成功。有谁知道我该如何解决这个问题？

所有这 3 个查询都会引发上述相同的错误：

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'

【问题讨论】：

你需要在求和之前进行转换，而不是之后。
谢谢！工作完美！我讨厌答案如此简单，哈哈。请张贴作为答案，我会这样标记它。再次感谢！

标签： sql-server error-handling overflow aggregate-functions

【解决方案1】：

SMor 在 cmets 中回答了它，但这里是 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'

如果 SMor 发布他们的答案，则接受。我没有测试代码，所以请原谅任何拼写错误。

【讨论】：

我正在寻找同样的问题。谢谢@Michael