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给我错误的操作结果
原标题:Query giving me incorrect operation result

This is my query:

Select location, MAX(total_cases) as HighestInfectionCount, population, MAX(total_cases/population) * 100 as PercentPopulationInfected
From PortfolioProject..[covid deaths]
Group by location, population
order by PercentPopulationInfected desc

这是我取得的结果:

Location HighestInfectionCount Population PercentPopulationInfected
Cyprus 999 896007 73.7554505712567
San Marino 9900 33690 72.775304244583

等等。

到表末,这些数值实际上开始看上去正确,但第一个约50项条目错了,从头2项可以看出。

不等于73%

I can t figure out what I m doing wrong.

I m trying to figure out why the first values on PercentPopulationInfected in my query are incorrect.

问题回答

- to

(MAX(total_cases)/population) * 100

I figured out the issue. The data in that column was nvarchar so doing cast(total_cases as bigint) worked





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