本文介绍了SQL 除以二 Count()的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我有以下查询，它试图找出某个产品占产品总数的百分比.IE:[产品数量]/[产品总数] = 百分比
I have the following query, which is trying to figure out the percentage of a certain product compared to the total number of products. IE: [Product Count] / [Total Products] = Percent
;WITH totalCount AS(
SELECT
CAST(COUNT(id) as Integer)as totalCount
FROM TABLE_NAME
)
SELECT
((CAST(COUNT(DISTINCT id) as Integer)/(SELECT * FROM totalCount))*100) as 'Percent'
FROM TABLE_NAME
但是，除非只有一条记录，否则百分比列始终返回0".另外，有没有办法将totalCount和Select查询合二为一?
However, the percent column always returns "0" unless there is only one record. In addition, is there a way to add the totalCount and Select query into one?
基本上，如何划分两个 Count() 字段?
Basically, how do you divide two Count() fields?
推荐答案
将您的总数作为除整数之外的数字(DECIMAL?) - 数学四舍五入.
Cast your total count as a number besides integer (DECIMAL?) - the math rounds off.
这篇关于SQL 除以二 Count()的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持编程学习网！
本站部分内容来源互联网,如果有图片或者内容侵犯您的权益请联系我们删除！