根据sql server 2005中的别名获取财政年度开始日期和结束日期

Question

我的表格包含两列，一列用于月份，另一列用于年份。基于这两列，我想要该财政年度的所有记录。例如。如果月份是 10，年份是 2014，那么其财政年度将是 FY 01StApr14 - 31stMar15。

我如何编写 SQL 选择查询来获取在 FY 01stApr14-31stMar15 之间创建的所有记录，这些记录基于月份和年份在该表中可用。

M 尝试以下查询，但收到错误消息为“关键字“和”附近的语法不正确。”

with cte as
(
select id,iono,iomonth,ioyear,
        convert(datetime,'01/'+right('00' + convert(varchar(10),iomonth,2),2) 
        + '/' +convert(varchar(4),IOyear),103) as FinDate from iodetails where iono=12345
)
select month(findate),* from cte where iono=12345 and
findate between 
case 
when month(findate)>=4 
then  convert(datetime,'01/'+'04'+ '/' +convert(varchar(4),IOyear),103) and 
        convert(datetime,'31/'+ '03' + '/' +convert(varchar(4),IOyear+1),103)
        else
 convert(datetime,'01/'+'04'+ '/' +convert(varchar(4),IOyear),103)  and 
    convert(datetime,'31/'+ '03' + '/' +convert(varchar(4),IOyear),103)
            end

Answer 1

试试这个：

SELECT * 
FROM tableA 
WHERE CAST((CAST(YearCol AS VARCHAR(10)) + (CAST(MonthCol AS VARCHAR(10))) AS INT) 
      BETWEEN CAST((CASE WHEN @V_Month BETWEEN 4 AND 12 THEN CAST((CAST(@V_Year AS VARCHAR(10)) + '04') AS INT) 
                         WHEN @V_Month BETWEEN 1 AND 3 THEN CAST((CAST(@V_Year - 1 AS VARCHAR(10)) + '04') AS INT) 
                         ELSE '' 
                     END
                   ) AS INT)
        AND CAST((CASE WHEN @V_Month BETWEEN 4 AND 12 THEN CAST((CAST(@V_Year + 1 AS VARCHAR(10)) + '03') AS INT) 
                       WHEN @V_Month BETWEEN 1 AND 3 THEN CAST((CAST(@V_Year AS VARCHAR(10)) + '03') AS INT) 
                       ELSE '' 
                  END
                 ) AS INT);

Answer 2

如果我正确理解您的要求，您可以试试这个：

SELECT * FROM mytable
 WHERE year(dateadd(q, -1, mydate)) = 2014

这将从mydate 的值中减去1 个季度（3 个月）并提取年份。所以31 Mar 2015减法后变为31 Dec 2014，提取年份为2014年。

糟糕抱歉，我看到您有两列，月份和年份。在这种情况下，你可以试试这个：

SELECT * FROM mytable
  WHERE year(dateadd(q, -1, cast(cast(mymonth AS char) + '/01/' + cast(myyear AS char) AS datetime))) = 2014

然而，这可能不是最有效的方法。

根据我的 cmets 更新

以下是在表上创建计算列的方法：

ALTER TABLE mytable
  ADD mydate AS cast(cast(mymonth AS char) + '/01/' + cast(myyear AS char) AS datetime)