我真的可以使用一些帮助。我试图从CTE中的VARCHAR报告参数中减去1。我正在使用SQL 2008 R2
这很好用:
AND MONTH(CAST(c.DATETIME AS DATE)) = CONVERT(INT,@Maand)
但这似乎不起作用:
AND MONTH(CAST(c.DATETIME AS DATE)) = CONVERT(INT,@Maand) -1
由于
以下是我的一些代码:
ALTER PROCEDURE [rpt].[usp_F_Telefonie_Bereikbaarheid](@Jaar AS VARCHAR(4), @Maand AS VARCHAR(2))
AS
BEGIN
WITH CTE AS(
SELECT
C.DATETIME AS Datum
,d.NAME
,COUNT(Callid) AS Aantal
,'Vorige' AS Gesprekken
,DURATIONSEC
FROM DM.dm.F_CDRS AS c
JOIN DM.dm.D_DEPARTMENTS AS d
ON d.DEPARTMENTID = c.DEPARTMENTID
WHERE Direction = 1
AND YEAR(CAST(c.DATETIME AS DATE)) = @Jaar
AND MONTH(CAST(c.DATETIME AS DATE))= CONVERT(INT,@Maand)
AND WAITTIMESEC <=10
GROUP BY LEFT(D.NAME, 2), D.NAME, C.DATETIME, DURATIONSEC
)
SELECT
,CASE CTE.Gesprekken
WHEN 'Vorige'
THEN SUM(CTE.Aantal)
END AS Vorige
FROM CTE
WHERE MONTH(CAST(CTE.Datum AS DATE)) = @Maand
AND YEAR(CAST(CTE.Datum AS DATE)) = @Jaar
GROUP BY CTE.NAME, CTE.Gesprekken, CTE.DURATIONSEC, CTE.Aantal
答案 0 :(得分:0)
您需要转换varchar - &gt; datetime然后使用datediff函数。
取而代之的是:
YEAR(CAST(c.DATETIME AS DATE)) = @Jaar
AND MONTH(CAST(c.DATETIME AS DATE))= CONVERT(INT,@Maand)
使用:
datediff(month, cast(@Jaar + right('0' + @Maand, 2) + '01' as datetime), c.[datetime]) = 1