Question

我有一个带有group by和参数的sql语句：

string comstring = 
    "SELECT NOVI.GBR as gbrnov, 
            NOVI.AB as abnov, 
            NALOG1.DATA as datanov, 
            Min(NALOG1.POCKM) AS MinOfPOCKM, 
            Max(NALOG1.KRAJKM) AS MaxOfKRAJKM, 
            (Max(NALOG1.KRAJKM)-Min(NALOG1.POCKM)) AS RAZLIKA, 
            Count(IIf(([MAGACIN.SIFRA]='0991000'),[MAGACIN.KOL],Null)) AS Gorivo, 
            Avg(IIf(([MAGACIN.SIFRA]='0991000'),[MAGACIN.KOL],Null)/100) AS potrosgor100km, 
            Sum(IIf(([MAGACIN.SIFRA]='0993050' Or [MAGACIN.SIFRA]='0993051'),[MAGACIN.KOL],Null)) AS Motmaslo, 
            Sum(IIf(([MAGACIN.SIFRA]='0992201'),[MAGACIN.KOL],Null)) AS Addblue, 
            ([Addblue]/[Gorivo])*100 AS Addbluegor, 
            Sum(IIf(([MAGACIN.SIFRA]='0999001'),[MAGACIN.KOL],Null)) AS Antifriz, 
            NOVI.DATAP, 
            NOVI.DATAS, 
            IIf(([NOVI].[KM]<=([NOVI].[KMS1]+[NOVI].[KMS2])),'ZA SERVIS',(IIf(([NOVI].[KM]<=([NOVI].[KMP1]+[NOVI].[KMP2])),'PROVERKA',''))) AS Zabeleska 
     FROM (NALOG1 INNER JOIN NOVI ON NALOG1.GBRV = NOVI.GBR) 
     INNER JOIN MAGACIN ON NOVI.GBR = MAGACIN.GBR 
         where (((NOVI.GBR)>=? And (NOVI.GBR)<=?) 
             AND ( ((NOVI.AB)=?) 
             OR ((NOVI.AB)=?) ) 
             AND ((NALOG1.DATA)<=? and (NALOG1.DATA)>=?) ) 
     GROUP BY NOVI.GBR, 
              NOVI.AB, 
              NALOG1.DATA, 
              ([Addblue]/[Gorivo])*100, 
              NOVI.DATAP, 
              NOVI.DATAS, 
              IIf(([NOVI].[KM]<=([NOVI].[KMS1]+[NOVI].[KMS2])),'ZA SERVIS',(IIf(([NOVI].[KM]<=([NOVI].[KMP1]+[NOVI].[KMP2])),'PROVERKA','')))";

我在

中收到错误No value given for one or more required parameters

oleDBDataAdapter1.Fill(dataSet2,"Tabela");

使用某些值时，例如：

string comstring = 
    "SELECT NOVI.GBR as gbrnov, 
            NOVI.AB as abnov, 
            NALOG1.DATA as datanov, 
            Min(NALOG1.POCKM) AS MinOfPOCKM, 
            Max(NALOG1.KRAJKM) AS MaxOfKRAJKM, 
            (Max(NALOG1.KRAJKM)-Min(NALOG1.POCKM)) AS RAZLIKA, 
            Count(IIf(([MAGACIN.SIFRA]='0991000'),[MAGACIN.KOL],Null)) AS Gorivo, 
            Avg(IIf(([MAGACIN.SIFRA]='0991000'),[MAGACIN.KOL],Null)/100) AS potrosgor100km, 
            Sum(IIf(([MAGACIN.SIFRA]='0993050' Or [MAGACIN.SIFRA]='0993051'),[MAGACIN.KOL],Null)) AS Motmaslo, 
            Sum(IIf(([MAGACIN.SIFRA]='0992201'),[MAGACIN.KOL],Null)) AS Addblue, 
            ([Addblue]/[Gorivo])*100 AS Addbluegor, 
            Sum(IIf(([MAGACIN.SIFRA]='0999001'),[MAGACIN.KOL],Null)) AS Antifriz, 
            NOVI.DATAP, 
            NOVI.DATAS, 
            IIf(([NOVI].[KM]<=([NOVI].[KMS1]+[NOVI].[KMS2])),'ZA SERVIS',(IIf(([NOVI].[KM]<=([NOVI].[KMP1]+[NOVI].[KMP2])),'PROVERKA',''))) AS Zabeleska 
     FROM (NALOG1 INNER JOIN NOVI ON NALOG1.GBRV = NOVI.GBR) 
     INNER JOIN MAGACIN ON NOVI.GBR = MAGACIN.GBR 
         where (((NOVI.GBR)>='1001' And (NOVI.GBR)<='1080') 
         AND ( ((NOVI.AB)='AK') 
         OR ((NOVI.AB)='AK') ) 
         AND ((NALOG1.DATA)<=#10/31/2011# 
         and (NALOG1.DATA)>=#10/31/2011#) ) 
     GROUP BY NOVI.GBR, 
              NOVI.AB, 
              NALOG1.DATA, 
              ([Addblue]/[Gorivo])*100, 
              NOVI.DATAP, 
              NOVI.DATAS, 
              IIf(([NOVI].[KM]<=([NOVI].[KMS1]+[NOVI].[KMS2])),'ZA SERVIS',(IIf(([NOVI].[KM]<=([NOVI].[KMP1]+[NOVI].[KMP2])),'PROVERKA','')))";

没有任何问题。

是的，有人可以帮帮我吗？

Answer 1

您的查询存在问题：

where (((NOVI.GBR)>=? And (NOVI.GBR)<=?) 
             AND ( ((NOVI.AB)=?) 
             OR ((NOVI.AB)=?) ) 
             AND ((NALOG1.DATA)<=? and (NALOG1.DATA)>=?) )

您需要提供正确的值而不是?，可能您可以'?'，但我认为它不适用于(NALOG1.DATA)（通过查看您的其他查询我是猜测一下，它的数据类型是Date）

编辑评论：

如果您使用参数，则需要按照使用?的顺序传递它们。您无法在oledbcommand

中使用如下所示的命名参数

 command.Parameters.AddWithValue("@param1", "1001");

如果您在查询中使用了6 ?，则需要根据顺序传递6个参数。

        OleDbParameter[] oledbParams = new OleDbParameter[6];

        //To be added in proper order.
        oledbParams[0] = new OleDbParameter("PN1", "1001");
        oledbParams[1] = new OleDbParameter("PN2", "1002");
        .
        .
        oledbParams[6] = new OleDbParameter("DateValue", DateTime.Now.Date);

        foreach (var p in oledbParams)
        {
            command.Parameters.Add(p);
        }

在使用参数和OleDbCommand时进行分组，Crystal报告

1 个答案: