Question

我找不到上个月的第一天和最后一天带有时间戳的解决方案。希望这有助于其他人。如果已经有解决这个问题的方法，我道歉。

这是解决方案。

 SELECT DATEADD(month, DATEDIFF(month, -1, getdate()) - 2, 0) as FirtDayPreviousMonthWithTimeStamp,
    DATEADD(ss, -1, DATEADD(month, DATEDIFF(month, 0, getdate()), 0)) as LastDayPreviousMonthWithTimeStamp

如果currentdate = '2012-7-31'

，将返回以下内容

结果：2012-06-01 00:00:00.000 2012-06-30 23:59:59.000

如果currentdate = '2012-1-1'

，将返回以下内容

结果：2011-12-01 00:00:00.000 2011-12-31 23:59:59.000

Answer 1

select DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE())-1, 0) --First day of previous month
select DATEADD(MONTH, DATEDIFF(MONTH, -1, GETDATE())-1, -1) --Last Day of previous month

Answer 2

本周的第一天。

select CONVERT(varchar,dateadd(week,datediff(week,0,getdate()),0),106)

本周的最后一天。

select CONVERT(varchar,dateadd(week,datediff(week,0,getdate()),6),106)

上周的第一天。

select CONVERT(varchar,DATEADD(week,datediff(week,7,getdate()),0),106)

上周的最后一天。

select CONVERT(varchar,dateadd(week,datediff(week,7,getdate()),6),106)

下周的第一天。

select CONVERT(varchar,dateadd(week,datediff(week,0,getdate()),7),106)

下周的最后一天。

select CONVERT(varchar,dateadd(week,datediff(week,0,getdate()),13),106)

本月第一天。

select CONVERT(varchar,dateadd(d,-(day(getdate()-1)),getdate()),106)

本月最后一天。

select CONVERT(varchar,dateadd(d,-(day(dateadd(m,1,getdate()))),dateadd(m,1,getdate())),106)

在此示例作品中，仅日期为31.而剩余日期不是。

上个月的第一天。

select CONVERT(varchar,dateadd(d,-(day(dateadd(m,-1,getdate()-2))),dateadd(m,-1,getdate()-1)),106)

上个月的最后一天。

select CONVERT(varchar,dateadd(d,-(day(getdate())),getdate()),106)

下个月的第一天。

select CONVERT(varchar,dateadd(d,-(day(dateadd(m,1,getdate()-1))),dateadd(m,1,getdate())),106)

下个月的最后一天。

select CONVERT(varchar,dateadd(d,-(day(dateadd(m,2,getdate()))),DATEADD(m,2,getdate())),106)

本年度的第一天。

select CONVERT(varchar,dateadd(year,datediff(year,0,getdate()),0),106)

当年的最后一天。

select CONVERT(varchar,dateadd(ms,-2,dateadd(year,0,dateadd(year,datediff(year,0,getdate())+1,0))),106)

去年的第一天。

select CONVERT(varchar,dateadd(year,datediff(year,0,getdate())-1,0),106)

去年的最后一天。

select CONVERT(varchar,dateadd(ms,-2,dateadd(year,0,dateadd(year,datediff(year,0,getdate()),0))),106)

明年的第一天。

select CONVERT(varchar,dateadd(YEAR,DATEDIFF(year,0,getdate())+1,0),106)

明年的最后一天。

select CONVERT(varchar,dateadd(ms,-2,dateadd(year,0,dateadd(year,datediff(year,0,getdate())+2,0))),106)

Answer 3

SELECT CONVERT(DATE,DATEADD(MM, DATEDIFF(MM, 0, GETDATE())-1, 0)) AS FirstDayOfPrevMonth
SELECT CONVERT(DATE,DATEADD(MS, -3, DATEADD(MM, DATEDIFF(MM, 0, GETDATE()) , 0))) AS LastDayOfPrevMonth

Answer 4

<强>解决方案

您请求的日期格式称为 ODBC 格式（代码 120 ）。

要实际计算您请求的值，请在SQL中包含以下内容。

复制，粘贴......

DECLARE
    @FirstDayOfLastMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(DATEADD(m, -1, GETDATE() - 2)) ), DATEADD(m, -1, GETDATE() - 1)))
    , @LastDayOfLastMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(GETDATE()) ), GETDATE()))

...并在您的代码中使用：


@FirstDayOfLastMonth

@LastDayOfLastMonth

请注意，它必须比引用参数的任何语句更早粘贴，但从那时起，您可以在代码中引用 @FirstDayOfLastMonth 和 @LastDayOfLastMonth

示例

让我们看一些代码：

DECLARE @FirstDayOfLastMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(DATEADD(m, -1, GETDATE() - 2)) ), DATEADD(m, -1, GETDATE() - 1))) , @LastDayOfLastMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(GETDATE()) ), GETDATE())) SELECT 'First day of last month' AS Title, CONVERT(VARCHAR, @FirstDayOfLastMonth , 120) AS [ODBC] UNION SELECT 'Last day of last month' AS Title, CONVERT(VARCHAR, @LastDayOfLastMonth , 120) AS [ODBC]

运行以上代码以生成以下输出：

注意： 请记住，今天的日期是 2016年9月12日。

更多（为了完整性）

常用日期参数

你还想要更多吗？

要设置更全面的便捷日期相关参数，请在SQL中包含以下内容：

DECLARE @FirstDayOfCurrentWeek DATETIME = CONVERT(DATE, DATEADD(WEEK, DATEDIFF(WEEK, 0, GETDATE()), 0)) , @LastDayOfCurrentWeek DATETIME = CONVERT(DATE, DATEADD(WEEK, DATEDIFF(WEEK, 0, GETDATE()), 6)) , @FirstDayOfLastWeek DATETIME = CONVERT(DATE, DATEADD(WEEK, DATEDIFF(WEEK, 7, GETDATE()), 0)) , @LastDayOfLastWeek DATETIME = CONVERT(DATE, DATEADD(WEEK, DATEDIFF(WEEK, 7, GETDATE()), 6)) , @FirstDayOfNextWeek DATETIME = CONVERT(DATE, DATEADD(WEEK, DATEDIFF(WEEK, 0, GETDATE()), 7)) , @LastDayOfNextWeek DATETIME = CONVERT(DATE, DATEADD(WEEK, DATEDIFF(WEEK, 0, GETDATE()), 13)) , @FirstDayOfCurrentMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(GETDATE() - 1) ), GETDATE())) , @LastDayOfCurrentMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(DATEADD(m, 1, GETDATE())) ), DATEADD(m, 1, GETDATE()))) , @FirstDayOfLastMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(DATEADD(m, -1, GETDATE() - 2)) ), DATEADD(m, -1, GETDATE() - 1))) , @LastDayOfLastMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(GETDATE()) ), GETDATE())) , @FirstDayOfNextMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(DATEADD(m, 1, GETDATE() - 1)) ), DATEADD(m, 1, GETDATE()))) , @LastDayOfNextMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(DATEADD(m, 2, GETDATE())) ), DATEADD(m, 2, GETDATE()))) , @FirstDayOfCurrentYear DATETIME = CONVERT(DATE, DATEADD(YEAR, DATEDIFF(YEAR, 0, GETDATE()), 0)) , @LastDayOfCurrentYear DATETIME = CONVERT(DATE, DATEADD(ms, -2, DATEADD(YEAR, 0, DATEADD(YEAR, DATEDIFF(YEAR, 0, GETDATE()) + 1, 0)))) , @FirstDayOfLastYear DATETIME = CONVERT(DATE, DATEADD(YEAR, DATEDIFF(YEAR, 0, GETDATE()) - 1, 0)) , @LastDayOfLastYear DATETIME = CONVERT(DATE, DATEADD(ms, -2, DATEADD(YEAR, 0, DATEADD(YEAR, DATEDIFF(YEAR, 0, GETDATE()), 0)))) , @FirstDayOfNextYear DATETIME = CONVERT(DATE, DATEADD(YEAR, DATEDIFF(YEAR, 0, GETDATE()) + 1, 0)) , @LastDayOfNextYear DATETIME = CONVERT(DATE, DATEADD(ms, -2, DATEADD(YEAR, 0, DATEADD(YEAR, DATEDIFF(YEAR, 0, GETDATE()) + 2, 0))))

最好先包含它，最好是在过程或SQL查询的顶部。

声明后，可以在代码中的任何位置引用参数，这些参数可以根据需要多次引用。

示例

让我们看一些代码：

DECLARE @FirstDayOfCurrentWeek DATETIME = CONVERT(DATE, DATEADD(WEEK, DATEDIFF(WEEK, 0, GETDATE()), 0)) , @LastDayOfCurrentWeek DATETIME = CONVERT(DATE, DATEADD(WEEK, DATEDIFF(WEEK, 0, GETDATE()), 6)) , @FirstDayOfLastWeek DATETIME = CONVERT(DATE, DATEADD(WEEK, DATEDIFF(WEEK, 7, GETDATE()), 0)) , @LastDayOfLastWeek DATETIME = CONVERT(DATE, DATEADD(WEEK, DATEDIFF(WEEK, 7, GETDATE()), 6)) , @FirstDayOfNextWeek DATETIME = CONVERT(DATE, DATEADD(WEEK, DATEDIFF(WEEK, 0, GETDATE()), 7)) , @LastDayOfNextWeek DATETIME = CONVERT(DATE, DATEADD(WEEK, DATEDIFF(WEEK, 0, GETDATE()), 13)) , @FirstDayOfCurrentMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(GETDATE() - 1) ), GETDATE())) , @LastDayOfCurrentMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(DATEADD(m, 1, GETDATE())) ), DATEADD(m, 1, GETDATE()))) , @FirstDayOfLastMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(DATEADD(m, -1, GETDATE() - 2)) ), DATEADD(m, -1, GETDATE() - 1))) , @LastDayOfLastMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(GETDATE()) ), GETDATE())) , @FirstDayOfNextMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(DATEADD(m, 1, GETDATE() - 1)) ), DATEADD(m, 1, GETDATE()))) , @LastDayOfNextMonth DATETIME = CONVERT(DATE, DATEADD(d, -( DAY(DATEADD(m, 2, GETDATE())) ), DATEADD(m, 2, GETDATE()))) , @FirstDayOfCurrentYear DATETIME = CONVERT(DATE, DATEADD(YEAR, DATEDIFF(YEAR, 0, GETDATE()), 0)) , @LastDayOfCurrentYear DATETIME = CONVERT(DATE, DATEADD(ms, -2, DATEADD(YEAR, 0, DATEADD(YEAR, DATEDIFF(YEAR, 0, GETDATE()) + 1, 0)))) , @FirstDayOfLastYear DATETIME = CONVERT(DATE, DATEADD(YEAR, DATEDIFF(YEAR, 0, GETDATE()) - 1, 0)) , @LastDayOfLastYear DATETIME = CONVERT(DATE, DATEADD(ms, -2, DATEADD(YEAR, 0, DATEADD(YEAR, DATEDIFF(YEAR, 0, GETDATE()), 0)))) , @FirstDayOfNextYear DATETIME = CONVERT(DATE, DATEADD(YEAR, DATEDIFF(YEAR, 0, GETDATE()) + 1, 0)) , @LastDayOfNextYear DATETIME = CONVERT(DATE, DATEADD(ms, -2, DATEADD(YEAR, 0, DATEADD(YEAR, DATEDIFF(YEAR, 0, GETDATE()) + 2, 0)))) SELECT 'a) FirstDayOfCurrentWeek.' AS [Title] , @FirstDayOfCurrentWeek AS [DATE (Server default)] , CONVERT(VARCHAR, @FirstDayOfCurrentWeek, 127) AS [ISO8601] , CONVERT(VARCHAR, @FirstDayOfCurrentWeek, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @FirstDayOfCurrentWeek, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @FirstDayOfCurrentWeek, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @FirstDayOfCurrentWeek, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @FirstDayOfCurrentWeek, 100) AS [U.S.] , CONVERT(VARCHAR, @FirstDayOfCurrentWeek, 120) AS [ODBC] UNION SELECT 'b) LastDayOfCurrentWeek.' AS [Title] , @LastDayOfCurrentWeek AS [DATE (Server default)] , CONVERT(VARCHAR, @LastDayOfCurrentWeek, 127) AS [ISO8601] , CONVERT(VARCHAR, @LastDayOfCurrentWeek, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @LastDayOfCurrentWeek, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @LastDayOfCurrentWeek, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @LastDayOfCurrentWeek, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @LastDayOfCurrentWeek, 100) AS [U.S.] , CONVERT(VARCHAR, @LastDayOfCurrentWeek, 120) AS [ODBC] UNION SELECT 'c) FirstDayOfLastWeek.' AS [Title] , @FirstDayOfLastWeek AS [DATE (Server default)] , CONVERT(VARCHAR, @FirstDayOfLastWeek, 127) AS [ISO8601] , CONVERT(VARCHAR, @FirstDayOfLastWeek, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @FirstDayOfLastWeek, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @FirstDayOfLastWeek, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @FirstDayOfLastWeek, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @FirstDayOfLastWeek, 100) AS [U.S.] , CONVERT(VARCHAR, @FirstDayOfLastWeek, 120) AS [ODBC] UNION SELECT 'd) LastDayOfLastWeek.' AS [Title] , @LastDayOfLastWeek AS [DATE (Server default)] , CONVERT(VARCHAR, @LastDayOfLastWeek, 127) AS [ISO8601] , CONVERT(VARCHAR, @LastDayOfLastWeek, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @LastDayOfLastWeek, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @LastDayOfLastWeek, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @LastDayOfLastWeek, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @LastDayOfLastWeek, 100) AS [U.S.] , CONVERT(VARCHAR, @LastDayOfLastWeek, 120) AS [ODBC] UNION SELECT 'e) FirstDayOfNextWeek.' AS [Title] , @FirstDayOfNextWeek AS [DATE (Server default)] , CONVERT(VARCHAR, @FirstDayOfNextWeek, 127) AS [ISO8601] , CONVERT(VARCHAR, @FirstDayOfNextWeek, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @FirstDayOfNextWeek, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @FirstDayOfNextWeek, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @FirstDayOfNextWeek, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @FirstDayOfNextWeek, 100) AS [U.S.] , CONVERT(VARCHAR, @FirstDayOfNextWeek, 120) AS [ODBC] UNION SELECT 'f) LastDayOfNextWeek.' AS [Title] , @LastDayOfNextWeek AS [DATE (Server default)] , CONVERT(VARCHAR, @LastDayOfNextWeek, 127) AS [ISO8601] , CONVERT(VARCHAR, @LastDayOfNextWeek, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @LastDayOfNextWeek, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @LastDayOfNextWeek, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @LastDayOfNextWeek, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @LastDayOfNextWeek, 100) AS [U.S.] , CONVERT(VARCHAR, @LastDayOfNextWeek, 120) AS [ODBC] UNION SELECT 'g) FirstDayOfCurrentMonth.' AS [Title] , @FirstDayOfCurrentMonth AS [DATE (Server default)] , CONVERT(VARCHAR, @FirstDayOfCurrentMonth, 127) AS [ISO8601] , CONVERT(VARCHAR, @FirstDayOfCurrentMonth, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @FirstDayOfCurrentMonth, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @FirstDayOfCurrentMonth, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @FirstDayOfCurrentMonth, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @FirstDayOfCurrentMonth, 100) AS [U.S.] , CONVERT(VARCHAR, @FirstDayOfCurrentMonth, 120) AS [ODBC] UNION SELECT 'h) LastDayOfCurrentMonth.' AS [Title] , @LastDayOfCurrentMonth AS [DATE (Server default)] , CONVERT(VARCHAR, @LastDayOfCurrentMonth, 127) AS [ISO8601] , CONVERT(VARCHAR, @LastDayOfCurrentMonth, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @LastDayOfCurrentMonth, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @LastDayOfCurrentMonth, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @LastDayOfCurrentMonth, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @LastDayOfCurrentMonth, 100) AS [U.S.] , CONVERT(VARCHAR, @LastDayOfCurrentMonth, 120) AS [ODBC] UNION SELECT 'i) FirstDayOfLastMonth.' AS [Title] , @FirstDayOfLastMonth AS [DATE (Server default)] , CONVERT(VARCHAR, @FirstDayOfLastMonth, 127) AS [ISO8601] , CONVERT(VARCHAR, @FirstDayOfLastMonth, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @FirstDayOfLastMonth, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @FirstDayOfLastMonth, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @FirstDayOfLastMonth, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @FirstDayOfLastMonth, 100) AS [U.S.] , CONVERT(VARCHAR, @FirstDayOfLastMonth, 120) AS [ODBC] UNION SELECT 'j) LastDayOfLastMonth.' AS [Title] , @LastDayOfLastMonth AS [DATE (Server default)] , CONVERT(VARCHAR, @LastDayOfLastMonth, 127) AS [ISO8601] , CONVERT(VARCHAR, @LastDayOfLastMonth, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @LastDayOfLastMonth, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @LastDayOfLastMonth, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @LastDayOfLastMonth, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @LastDayOfLastMonth, 100) AS [U.S.] , CONVERT(VARCHAR, @LastDayOfLastMonth, 120) AS [ODBC] UNION SELECT 'k) FirstDayOfNextMonth.' AS [Title] , @FirstDayOfNextMonth AS [DATE (Server default)] , CONVERT(VARCHAR, @FirstDayOfNextMonth, 127) AS [ISO8601] , CONVERT(VARCHAR, @FirstDayOfNextMonth, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @FirstDayOfNextMonth, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @FirstDayOfNextMonth, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @FirstDayOfNextMonth, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @FirstDayOfNextMonth, 100) AS [U.S.] , CONVERT(VARCHAR, @FirstDayOfNextMonth, 120) AS [ODBC] UNION SELECT 'l) LastDayOfNextMonth.' AS [Title] , @LastDayOfNextMonth AS [DATE (Server default)] , CONVERT(VARCHAR, @LastDayOfNextMonth, 127) AS [ISO8601] , CONVERT(VARCHAR, @LastDayOfNextMonth, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @LastDayOfNextMonth, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @LastDayOfNextMonth, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @LastDayOfNextMonth, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @LastDayOfNextMonth, 100) AS [U.S.] , CONVERT(VARCHAR, @LastDayOfNextMonth, 120) AS [ODBC] UNION SELECT 'm) FirstDayOfCurrentYear.' AS [Title] , @FirstDayOfCurrentYear AS [DATE (Server default)] , CONVERT(VARCHAR, @FirstDayOfCurrentYear, 127) AS [ISO8601] , CONVERT(VARCHAR, @FirstDayOfCurrentYear, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @FirstDayOfCurrentYear, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @FirstDayOfCurrentYear, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @FirstDayOfCurrentYear, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @FirstDayOfCurrentYear, 100) AS [U.S.] , CONVERT(VARCHAR, @FirstDayOfCurrentYear, 120) AS [ODBC] UNION SELECT 'n) LastDayOfCurrentYear.' AS [Title] , @LastDayOfCurrentYear AS [DATE (Server default)] , CONVERT(VARCHAR, @LastDayOfCurrentYear, 127) AS [ISO8601] , CONVERT(VARCHAR, @LastDayOfCurrentYear, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @LastDayOfCurrentYear, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @LastDayOfCurrentYear, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @LastDayOfCurrentYear, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @LastDayOfCurrentYear, 100) AS [U.S.] , CONVERT(VARCHAR, @LastDayOfCurrentYear, 120) AS [ODBC] UNION SELECT 'o) FirstDayOfLastYear.' AS [Title] , @FirstDayOfLastYear AS [DATE (Server default)] , CONVERT(VARCHAR, @FirstDayOfLastYear, 127) AS [ISO8601] , CONVERT(VARCHAR, @FirstDayOfLastYear, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @FirstDayOfLastYear, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @FirstDayOfLastYear, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @FirstDayOfLastYear, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @FirstDayOfLastYear, 100) AS [U.S.] , CONVERT(VARCHAR, @FirstDayOfLastYear, 120) AS [ODBC] UNION SELECT 'p) LastDayOfLastYear.' AS [Title] , @LastDayOfLastYear AS [DATE (Server default)] , CONVERT(VARCHAR, @LastDayOfLastYear, 127) AS [ISO8601] , CONVERT(VARCHAR, @LastDayOfLastYear, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @LastDayOfLastYear, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @LastDayOfLastYear, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @LastDayOfLastYear, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @LastDayOfLastYear, 100) AS [U.S.] , CONVERT(VARCHAR, @LastDayOfLastYear, 120) AS [ODBC] UNION SELECT 'q) FirstDayOfNextYear.' AS [Title] , @FirstDayOfNextYear AS [DATE (Server default)] , CONVERT(VARCHAR, @FirstDayOfNextYear, 127) AS [ISO8601] , CONVERT(VARCHAR, @FirstDayOfNextYear, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @FirstDayOfNextYear, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @FirstDayOfNextYear, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @FirstDayOfNextYear, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @FirstDayOfNextYear, 100) AS [U.S.] , CONVERT(VARCHAR, @FirstDayOfNextYear, 120) AS [ODBC] UNION SELECT 'r) LastDayOfNextYear.' AS [Title] , @LastDayOfNextYear AS [DATE (Server default)] , CONVERT(VARCHAR, @LastDayOfNextYear, 127) AS [ISO8601] , CONVERT(VARCHAR, @LastDayOfNextYear, 103) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [British&French] , CONVERT(VARCHAR, @LastDayOfNextYear, 104) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [German] , CONVERT(VARCHAR, @LastDayOfNextYear, 105) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Italian] , CONVERT(VARCHAR, @LastDayOfNextYear, 111) + ' ' + CONVERT(CHAR(5), @FirstDayOfCurrentWeek, 108) AS [Japan] , CONVERT(VARCHAR, @LastDayOfNextYear, 100) AS [U.S.] , CONVERT(VARCHAR, @LastDayOfNextYear, 120) AS [ODBC];

运行以上代码以生成以下输出：

如果你的国家遗失，那是因为我不知道它的代码。如果您能够编辑此答案并为您所在的国家/地区添加新列，那将是最有帮助和最受欢迎的。

提前致谢。

注意： 请记住，今天的日期是 2016年9月12日。

<强>参考

如需进一步阅读ISO8601国际日期标准，请点击以下链接：

https://en.wikipedia.org/wiki/ISO_8601

有关ODBC国际日期标准的进一步阅读，请点击以下链接：

https://technet.microsoft.com/en-us/library/ms190234(v=sql.90).aspx

要查看我工作的日期格式列表，请点击以下链接：

https://msdn.microsoft.com/en-GB/library/ms187928.aspx

有关DATETIME数据类型的进一步阅读，请点击以下链接：

https://msdn.microsoft.com/en-GB/library/ms187819.aspx

Answer 5

SELECT DATEADD(m,DATEDIFF(m,0,GETDATE())-1,0) AS PreviousMonthStart

SELECT DATEADD(ms,-2,DATEADD(month, DATEDIFF(month, 0, GETDATE()), 0)) AS PreviousMonthEnd

Answer 6

从SQL2012开始，引入了一个名为EOMONTH的新功能。使用此功能可以轻松找到该月的第一天和最后一天。

select DATEADD(DD,1,EOMONTH(Getdate(),-1)) firstdayofmonth, EOMONTH(Getdate()) lastdayofmonth

Answer 7

我还没有看到这个解决方案;这是我更喜欢它的简单可读性：

select dateadd(month,-1,format(getutcdate(),'yyyy-MM-01'))

Answer 8

要获取上个月的第一个日期：

select DATEADD(MONTH, DATEDIFF(MONTH, 0, GETDATE())-1, 0) LastMonthFirstDate

要获取上个月的最后日期：

select DATEADD(MONTH, DATEDIFF(MONTH, -1, GETDATE())-1, -1) LastMonthEndDate

Answer 9

我在SSRS报告中使用了以下逻辑。

BUS_DATE = 17-09-2013

X=DATEADD(MONTH,-1,BUS_DATE) = 17-08-2013

Y=DAY(BUS_DATE)=17

first_date = DATEADD(DAY,-Y+1,X)=01-08-2013

last_date  = DATEADD(DAY,-Y,BUS_DATE)=31-08-2013

Answer 10

取一些基准日期，即某个月的第31天，例如＆＃39; 20011231＆＃39 ;.然后使用
以下程序（我在下面给出了3个相同的例子，只有@dt值不同）。

declare @dt datetime;

set @dt = '20140312'

SELECT DATEADD(month, DATEDIFF(month, '20011231', @dt), '20011231');



set @dt = '20140208'

SELECT DATEADD(month, DATEDIFF(month, '20011231', @dt), '20011231');



set @dt = '20140405'

SELECT DATEADD(month, DATEDIFF(month, '20011231', @dt), '20011231');

Answer 11

这是一种相当直接和动态的方式。对于上个月的最后一天，从今天的日期减去当前数字日。对于上个月的第一天，请使用相同的代码，只需重复从先前结果中减去数字日，然后添加1.

declare @PriorEOM as datetime
declare @PriorFOM as datetime

Set @PriorEOM = dateadd(day,-day(getdate()),getdate())

Set @PriorFOM = dateadd(day,-day(@PriorEOM) + 1,@PriorEOM)

Print @PriorEOM
Print @PriorFOM

Answer 12

这是我知道上个月第一天的最简单方法：

第1步：将数据移至Postgres

第2步：

select date_trunc('month', getdate()) - '1 MONTH'::interval;

Answer 13

您可以在SQL Server中获取上个月的第一天和最后一天（带时间戳）通过执行

--select dateadd(dd,-datepart(dd,getdate())+1,dateadd(mm,-1,getdate())) --first day of previous month 
--select dateadd(dd,-datepart(dd,getdate()),getdate()) -- last day of previous month**

如何在SQL Server中获取上个月的第一天和最后一天（带时间戳）

13 个答案: