Question

我试图返回一个总和，它是返回的多行数据的总和。我试图返回显示员工，帐户和部门的数据。我想要这三个数据点支付的工资总和。我还想要一份员工的款项来说明他们的工资是如何分配的。一个例子如下。任何帮助，将不胜感激。

Answer 1

您可以使用SUM分析函数在窗口子句中使用不同的组来实现此目的。

SELECT employee
  , account
  , dept
  , SUM (salary) OVER (PARTITION BY employee) AS employee_salary
  , SUM (salary) OVER (PARTITION BY dept) AS dept_salary_paid
  , SUM (salary) OVER (PARTITION BY account) AS acct_salary_paid
FROM mytable

我不确定这些分组是否正是您想要的（也许我误解了您的问题），但它应该给您正确的想法。窗口子句为您提供了更大的灵活性，允许您按不同的值对总和进行分组，而GROUP BY强制每SELECT个单独分组。

根据您最近的更新进行修改：

您不需要GROUP BY和窗口条款。您可以执行两个不同的OVER(PARTITION BY ....)子句，因此它看起来像这样：

select employee
, activity
, SUM (salary_amt) OVER (PARTITION BY employee, activity) AS "total salary by employee and activity"
, SUM (salary_amt) OVER (PARTITION BY employee) AS "total salary by employee"
from mytable where employee = 'xxx'

Answer 2

fhossfel所写的内容基本上就是我希望它如何运作。这是我尝试过的：

选择员工，活动，SUM（salary_amt），SUM（salary_amt）OVER（PARTITION BY员工）AS＆＃34;员工总薪水＆＃34; 来自mytable 员工=＆＃39; xxx＆＃39; 按员工分组，活动

我得到的错误是员工的总和不是按表达式分组

Answer 3

这将返回每位员工的工资总和

SELECT employee, SUM(salary)
FROM Table
GROUP BY employee

Answer 4

以McGothlin已发布的内容为基础：

SELECT employee
  , account
  , dept
  , salary
  , SUM (salary) OVER (PARTITION BY employee) AS "total salary by employee"
  , ROUND(salary / SUM (salary) OVER (PARTITION BY employee) * 100) || '%' AS "salary distribution"
FROM mytable

oracle sql：如何在select语句中汇总不同的数据点？

4 个答案: