我需要在 where 语句中动态设置日期，以仅从 table 中提取在县财政年度发生的结果

Question

这是我当前的代码：

SELECT     nature, inci_id, calltime, agency, gp
FROM         inmain AS inmain
WHERE     (calltime >= CONVERT(DATETIME, '2013-07-01 00:00:00', 102))
      AND (calltime <= CONVERT(DATETIME, '2014-06-30 23:59:59', 102))
ORDER BY nature, calltime

我需要它在每个财政年度结束时提取数据，而不是一直进入并更改日期，但我不知道如何让它只是改变所以它在 7/1/ 之间（上一年）至 6/30/（当年）。

我们使用自动化程序在财政年度结束时将其发送出去。这样我就不必一直手动操作了。

Answer 1

我想你想做的是：

SELECT     nature, inci_id, calltime, agency, gp
FROM         inmain AS inmain
WHERE     (calltime >= CONVERT(DATETIME, CAST(YEAR(GETDATE()) - 1 AS VARCHAR(10)) + '-07-01 00:00:00', 102))
      AND (calltime <= CONVERT(DATETIME, CAST(YEAR(GETDATE()) AS VARCHAR(10)) + '-06-30 23:59:59', 102))
ORDER BY nature, calltime

但您也可以使用变量来使代码更具可读性，如下所示：

DECLARE @CurrentYear INT = 2015
DECLARE @CurrentYearAsString VARCHAR(10) = CAST(@CurrentYear AS VARCHAR(10))
DECLARE @PreviousYearAsString VARCHAR(10) = CAST(@CurrentYear - 1 AS VARCHAR(10))

SELECT     nature, inci_id, calltime, agency, gp
FROM         inmain AS inmain
WHERE     (calltime >= CONVERT(DATETIME, @PreviousYearAsString + '-07-01 00:00:00', 102))
      AND (calltime <= CONVERT(DATETIME, @CurrentYearAsString + '-06-30 23:59:59', 102))
ORDER BY nature, calltime

Answer 2

使用 datepart year，这样你就不会对函数执行搜索我建议设置一些变量，这些变量将在主查询之前设置运行，所以你的 sarg 是针对日期的。

declare @fiscalStart = select cast('07/01/' + 
        Cast((datepart(year, getdate())-1) as varchar(4)) as datetime)

declare @fiscalEnd = select dateadd(second, -1, cast('07/01/' + 
        Cast(datepart(year, getdate()) as varchar(4)) as datetime))


SELECT     nature, inci_id, calltime, agency, gp
FROM         inmain AS inmain
WHERE calltime between @fiscalStart and @fiscalEnd
ORDER BY nature, calltime

我需要在 where 语句中动态设置日期，以仅从 table 中提取在县财政年度发生的结果

I need to dynamically set the date in a where statement to only pull results from a table to occur in County's fiscal year

sql

datetime

date

sql-server-2008

visual-studio-2008