Question

我的表格如下：

var TicketInfo =
 [{
         for(i = 0; i < data_json.RESULT.length; i++){ 
            y: 'total',
            a: data_json.RESULT[i].total_cus,
            b: data_json.RESULT[i].new_total_cus
        }
        }]
   Morris.Bar({
        element: 'morris-bar-chart',
        data: TicketInfo,
        xkey: 'y',
        ykeys: ['a','b'],
        labels: ['abc','xyz'],
        hideHover: 'auto',
        resize: true
    });

我需要写一个查询来计算工资，直到每个月，输出将如下所示。每月工资将增加到上个月的工资。

EmpID  SalaryMonth Salary
1       January    20000
1       February   15000
1       March      25000

我尝试使用游标解决方案，但我们是否有任何其他解决方案可以实现此目的。

Answer 1

试试这个！

select EmpID,SalaryMonth,SUM(Salary) OVER(ORDER BY EmpID desc 
     ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) 
          AS Salary
  FROM t

Demo

Answer 2

请使用“累积总和”，如

选择t1.id，t1.SomeNumt，SUM（t2.SomeNumt）作为总和来自@t t1 t1.id＆gt; = t2.id上的内连接@t t2 group by t1.id，t1.SomeNumt 按t1.id命令

来源：how to get cumulative sum

Answer 3

试试这会帮到你

select * into #emp_sal from
(
select 1 EmpID      ,'January'as SalaryMonth,    20000 Salary
union all
select 1   , 'February',   15000
union all
select  1       ,'March',      25000
union all
select  2       ,'January',      30000
union all
select  2       ,'February',      8000
)as a

select EmpID,  SalaryMonth ,Salary,
sum(Salary)over(partition by empid order by SalaryMonth rows BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)as Actual_Salary 
from #emp_sal

Answer 4

免责声明：您应该认真考虑使用标准SQL Server日期或时间戳列来表示SalaryMonth。使用字符串月份名称会产生各种问题，因此我的详细解答如下。

我的方法是使用CTE为每个月的名称（cte1）分配一个数字位置。然后，我将其加入到原始表格中{cte2）。最后，我们可以自我加入cte2来计算表格中的滚动工资。

可能有一种方法可以使用月份名称来创建某种类型的日期对象，但我无法想到它，无论如何这样做可能需要分配一个虚拟年份，可能还有其他东西。

WITH cte1 AS (
    SELECT 'January' AS SalaryMonth, 1 AS MonthPos
    UNION ALL
    SELECT 'Februrary', 2
    UNION ALL
    SELECT 'March', 3
    UNION ALL
    SELECT 'April', 4
    UNION ALL
    SELECT 'May', 5
    UNION ALL
    SELECT 'June', 6
    UNION ALL
    SELECT 'July', 7
    UNION ALL
    SELECT 'August', 8
    UNION ALL
    SELECT 'September', 9
    UNION ALL
    SELECT 'October', 10
    UNION ALL
    SELECT 'November', 11
    UNION ALL
    SELECT 'December', 12
),
WITH cte2 AS (
    SELECT t1.EmpID,
           t1.SalaryMonth,
           t2.MonthPos,
           t1.Salary
    FROM yourTable t1
    INNER JOIN cte1 t2
        ON t1.SalaryMonth = t2.SalaryMonth
)

SELECT t1.EmpID,
       t1.SalaryMonth,
       SUM(t2.Salary) AS Salary
FROM cte2 t1
INNER JOIN cte2 t2
    ON t1.MonthPos >= t2.MonthPos
GROUP BY t1.EmpID,
         t1.SalaryMonth

Sql Query计算工资到特定月份

4 个答案: