如何解决error Arithmetic overflow error converting expression to data type int?

Question

当运行以下查询时（我使用 python 创建查询）：

SELECT x, y, z, sum(r) AS R 
FROM data_table 
WHERE [start_time] >= convert(datetime, '2022-02-03') 
  AND [end_time] <= CONVERT(datetime, '2022-02-07')
GROUP BY x, y, z

我收到错误：

Arithmetic overflow error converting expression to data type int.

如果我将日期更改为“2022-02-04”，它工作正常。有人可以帮我解决我的查询，让它在所有日期都有效吗？

Answer 1

似乎 sum() 的结果溢出了，如何将 r 转换为 bigint 在总结结果之前：

SELECT x, y, z, sum(cast(r as bigint)) AS R 
FROM data_table 
WHERE [start_time] >= convert(datetime, '2022-02-03') 
  AND [end_time] <= CONVERT(datetime, '2022-02-07')
GROUP BY x, y, z

db<>fiddle here

如何解决error Arithmetic overflow error converting expression to data type int?

How to solve error Arithmetic overflow error converting expression to data type int?

sql

tsql

sql-server

overflow