如何计算 OTBI 报告中员工类型的百分比？

Question

您好，我尝试了很多使用计数和求和的方法。示例表如下：

Name	Employee Type	Percentage
First	E	66.6
Second	E	66.6
Third	E	66.6
Fourth	E	66.6
Fifth	C	33.3
Sixth	C	33.3

我尝试过使用这样的列公式：COUNT(COUNT("Worker"."Person Number") by "Worker"."Assignment Type")100 /COUNT()

但我认为第一个计数不应该存在，如果我在没有它的情况下使用它，OTBI 会给我一个语法错误。请帮我解决这个问题。

Answer 1

您可以在这里尝试使用分析函数：

SELECT Name, "Employee Type",
       100.0 * (COUNT(*) OVER (PARTITION BY "Employee Type") /
                COUNT(*) OVER () ) AS Percentage
FROM yourTable
ORDER BY "Employee Type", Name;

这是 Oracle 的 demo。

如果由于某种原因您不能使用分析函数，那么这里也可以使用连接方法：

SELECT t1.Name, t1."Employee Type",
       100.0 * t2.cnt / (SELECT COUNT(*) FROM yourTable) AS Percentage
FROM yourTable t1
INNER JOIN
(
    SELECT "Employee Type", COUNT(*) AS cnt
    FROM yourTable
    GROUP BY "Employee Type"
) t2
    ON t2."Employee Type" = t1."Employee Type"
ORDER BY "Employee Type", Name;