Sql server 获取动态上个月的结束日期并插入到

我试图动态获取上个月的最后一天，并将其传递到查询中。我试过下面的主意，但没用

DECLARE @PrevMonthLastDay DATE=(SELECT CONVERT(CHAR(15),DATEADD(DD,-Day(GETDATE()),GETDATE()),106))
--PRINT @PrevMonthLastDay
INSERT INTO [TBL_ParseRawDataHist]  
SELECT   [SrcID],[ASOFDATE],
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 1) AS Parse1, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 2) AS Parse2,
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 3) AS Parse3, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 4) AS Parse4, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 5) AS Parse5, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 6) AS Parse6, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 7) AS Parse7, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 8) AS Parse8,
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 9) AS Parse9, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 10) AS Parse10          
FROM     TBL_FR2052A_RAW_DATA_HIST  
--WHERE  ASOFDATE = '02/28/2018'
WHERE    ASOFDATE = ''' + CAST(@PrevMonthLastDay AS varchar(15)) + '''

结果：从字符串转换日期和/或时间时转换失败

---

我做错了什么？我正在使用SQL Server 2008

您不需要转换为字符串，只需使用

dateadd

和

day

：

DECLARE @CurrentDate as date = GETDATE()

SELECT  @CurrentDate As CurrentDate, 
        DATEADD(DAY, -DAY(@CurrentDate), @CurrentDate) As EndOfLastMonth

结果:

CurrentDate     EndOfLastMonth
06.03.2018      28.02.2018

2012版引入了内置函数，因此如果您升级SQL Server，您可以这样做以获得相同的结果：

选择EOMOUNT（dateadd（month，-1，getdate（））

更新
以下是完整的insert语句：

DECLARE @CurrentDate as date = GETDATE()

INSERT INTO [TBL_ParseRawDataHist]  
SELECT   [SrcID],[ASOFDATE],
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 1) AS Parse1, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 2) AS Parse2,
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 3) AS Parse3, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 4) AS Parse4, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 5) AS Parse5, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 6) AS Parse6, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 7) AS Parse7, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 8) AS Parse8,
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 9) AS Parse9, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 10) AS Parse10          
FROM     TBL_FR2052A_RAW_DATA_HIST  
WHERE    ASOFDATE = DATEADD(DAY, -DAY(@CurrentDate), @CurrentDate)

---

每月的第一天和最后一天：

DECLARE @PrevMonthFirstDay DATE= DATEADD(month, DATEDIFF(month, 0, getdate()), 0)

DECLARE @PrevMonthLastDay DATE= DATEADD(dd, -1, DATEADD(mm, DATEDIFF(mm, 0, GETDATE()) + 1, 0))

---

不能将字符串与日期连接起来，必须将两者转换为字符串：

WHERE    ASOFDATE = ''' + CAST(@PrevMonthLastDay AS varchar(15)) + ''''

---

Zohar，你更新的代码给了我一个尝试的想法。最终，这对我起了作用

DECLARE @PrevMonthLastDay DATE=(SELECT CONVERT(CHAR(15),DATEADD(DD,-Day(GETDATE()),GETDATE()),106))
Print @PrevMonthLastDay

INSERT   INTO [TBL_ParseRawDataHist]  
SELECT   [SrcID],[ASOFDATE],
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 1) AS Parse1, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 2) AS Parse2,
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 3) AS Parse3, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 4) AS Parse4, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 5) AS Parse5, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 6) AS Parse6, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 7) AS Parse7, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 8) AS Parse8,
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 9) AS Parse9, 
         dbo.SplitIndex('|', LTRIM(RTRIM([SrcID])), 10) AS Parse10          
FROM     TBL_FR2052A_RAW_DATA_HIST  
WHERE    ASOFDATE = @PrevMonthLastDay 

---

谢谢

谢谢。如何将其传递到INSERT into查询中？我试过你的建议，但什么也没发生。有些事情还是不太对劲。我刚刚更新了我原来的帖子。这就是我现在所在的地方。还有什么问题吗？我确信这是可行的。

ASOFDATE

列的数据类型是什么？@Zohar，数据类型是“Date”。可能是重复的