Question

我有一个列接受NoOfMonths中我想用多年计算的值。我的表格结构如下所示

CREATE TABLE Duration
(
TotalMonths int
);

INSERT INTO Duration VALUES (24);
INSERT INTO Duration VALUES (18);
INSERT INTO Duration VALUES (7);

我希望结果显示如下，

Months  Duration
24      2 Years
18      1 Year 6 Months
7       7 Months

Answer 1

您可以获得此类数据

select duration,
       duration / 12 as years,
       duration % 12 as months
from your_table

您应该在程序的表示层中完成剩下的工作。

Answer 2

试试这个

SELECT
    *,
    CASE WHEN TotalMonths>12
          THEN CAST(TotalMonths/12 AS VARCHAR(10))+' Years '
       ELSE '' END
    +
    CASE WHEN TotalMonths%12>0
          THEN CAST(TotalMonths%12 AS VARCHAR(10))+' Months'
       ELSE '' END
    FROM Duration

Answer 3

像这样的东西

DECLARE @Duration TABLE(TotalMonths int);

INSERT INTO @Duration VALUES (24),(18),(7);

SELECT d.TotalMonths
      ,A.*
      , CASE WHEN A.CountYears>0 THEN CAST (A.CountYears AS VARCHAR(10)) + ' years ' ELSE '' END 
      + CASE WHEN A.CountMonths>0 THEN CAST(A.CountMonths AS VARCHAR(10)) + ' months' ELSE '' END AS TextDescription
FROM @Duration AS d
CROSS APPLY(SELECT d.TotalMonths / 12 AS CountYears
                  ,d.TotalMonths % 12 AS CountMonths) AS A;

编辑使用modulo operator %

结果

+-------------+------------+-------------+------------------+
| TotalMonths | CountYears | CountMonths | TextDescription  |
+-------------+------------+-------------+------------------+
| 24          | 2          | 0           | 2 years          |
+-------------+------------+-------------+------------------+
| 18          | 1          | 6           | 1 years 6 months |
+-------------+------------+-------------+------------------+
| 7           | 0          | 7           | 7 months         |
+-------------+------------+-------------+------------------+

提示：整数除法将静默舍入为整数值。

Answer 4

你可以这样做：

declare @Duration table (TotalMonths int)

INSERT INTO @Duration VALUES (24), (18), (7)

select d.TotalMonths as months, 
       case when d.TotalMonths / 12 > 0 then convert(varchar, d.TotalMonths / 12) + ' years ' else '' end
       +
       case when d.TotalMonths % 12 > 0 then convert(varchar, d.TotalMonths % 12) + ' Months' else '' end 
       as Duration
from   @Duration d

结果是

months  Duration    
------  --------    
24      2 years     
18      1 years 6 Months    
7       7 Months

Answer 5

您需要检查如何显示虚拟列，并在其中进行数学运算。像这样的东西

select TotalMonths, ((select TotalMonths from Duration) / 12) As DurationInYears from Duration

Answer 6

这是一种简单的方法，您可以将整数值转换为月和日：

SELECT Duration(dd,366,0)

这会将持续时间值转换为数月和数年。

如果月份从12个月增加，则计算持续时间

6 个答案: