获取错误：从字符串转换日期和/或时间时转换失败

Question

SELECT
 LEFT(DateName( Month, TRIPDATE),3 ) + ' ' + RIGHT(DateName( Year, TRIPDATE),2 ) AS [MonthYear],
 SUM(isnull(cast(TOTALFREIGHT as float),0)) AS FreightAmount 
FROM OFFLINETRANS 
Group By DateName( Month, TRIPDATE ), DateName( Year, TRIPDATE ) 
ORDER BY max(TRIPDATE)

Answer 1

尝试转换您的日期/日期时间列，如下所示：

SELECT
 LEFT( DATENAME( MONTH, CONVERT(datetime, TRIPDATE, 103))
 ,3 ) + ' ' + RIGHT(DATENAME(YEAR, convert(datetime, TRIPDATE, 103)),2 ) AS [MonthYear],
 SUM(ISNULL(cast(TOTALFREIGHT as float),0)) AS FreightAmount 
FROM OFFLINETRANS 
Group By  LEFT( DATENAME( MONTH, CONVERT(datetime, TRIPDATE, 103)) ,3 ) + ' ' + RIGHT(DATENAME(YEAR, convert(datetime, TRIPDATE, 103)),2 )
ORDER BY max(TRIPDATE)

编辑：不要编辑我的答案，如果你仍有问题，编辑自己的问题。如果新问题与原始帖子无关，请改为创建新问题。

Answer 2

SELECT [MonthYear],SUM(CAST(FreightAmount AS DECIMAL(18,2))) As FreightAmount
FROM (
 SELECT LEFT(DateName(Month, TRIPDATE), 3) + ' ' + RIGHT(DateName(Year, TRIPDATE), 2) AS [MonthYear] ,SUM(TRIPCOST) AS FreightAmount ,max(TRIPDATE) AS UsedForOrder
   FROM TRANSVIEW GROUP BY DateName(Month, TRIPDATE) ,DateName(Year, TRIPDATE)

UNION ALL
 SELECT LEFT(DATENAME(MONTH, CONVERT(DATETIME, TRIPDATE, 103)), 3) + ' ' + RIGHT(DATENAME(YEAR, convert(DATETIME, TRIPDATE, 103)), 2) AS [MonthYear] ,SUM(ISNULL(cast(TOTALFREIGHT AS FLOAT), 0)) AS FreightAmount ,max(CONVERT(DATETIME, TRIPDATE, 103)) AS UsedForOrder FROM OFFLINETRANS GROUP BY LEFT(DATENAME(MONTH, CONVERT(DATETIME, TRIPDATE, 103)), 3) + ' ' + RIGHT(DATENAME(YEAR, convert(DATETIME, TRIPDATE, 103)), 2)

) AS A GROUP BY [MonthYear] ORDER BY max(UsedForOrder)