The databse DLL 'crdb_oracle.dll' could be loaded.

Question

I wrote a procedure in Oracle's package(Oracle 9i) :
Procedure getStudentByBatch(
        cur in out MyCursor,
        bname varchar2
    ) Is
    Begin
        if bname is null then
            Open cur For
            Select * From TBL_STUDENT;
        else
            Open cur For
            Select * From TBL_STUDENT
            Where Batch = bname;
        end if;
    End getStudentByBatch;
Then, I created a report with CR XI. But when I used Crystal Report Viewer in Visual Studio 2005 to view this report, an error occurred:
Failed to load database infomation.
Details: The databse DLL 'crdb_oracle.dll' could be loaded.
I used VB.NET to call this report:
Dim myReport As New WindowsApplication3.Report2
        Dim tbCurrent As CrystalDecisions.CrystalReports.Engine.Table
        Dim tliCurrent As CrystalDecisions.Shared.TableLogOnInfo
        Try
            For Each tbCurrent In myReport.Database.Tables
                tliCurrent = tbCurrent.LogOnInfo
                With tliCurrent.ConnectionInfo
                    .ServerName = "MyNetServiceName"
                    .UserID = "MySchema"
                    .Password = "MyPassword"
                    .DatabaseName = ""
                End With
                tbCurrent.ApplyLogOnInfo(tliCurrent)
            Next tbCurrent
            myReport.SetParameterValue("BNAME", "C0606M")
        Catch ex As Exception
            MessageBox.Show(ex.Message)
        End Try
CrystalReportViewer1.ReportSource = myReport
I have reinstalled Oracle but nothing changes

Answer 1

I am having a similar problem.  However, I do not have CR installed, but want to use only CR from within VS 2008 and deploy a ASP.NET reporting app to IIS.  If I create a simple report with no parameters it will run fine in both VS and IIS.  However, if I add a parameter to the report such as UserId={?Parameter1} then on execution, the report will prompt for the parameter and then throw this error, "The database DLL 'crdb_oracle' could not be loaded."
I have added full privileges to the ASP.NET, IUSR, and IWAM for the Oracle folder.  I also search the hard drive and find only one OSI.dll and no crdb_oracle.dll.
Can you tell me if my scenario is supported with VS 2008 only?
I am connecting to the DB like this:
            ConnectionInfo connectionInfo = new ConnectionInfo();
            connectionInfo.ServerName = "Driver={Microsoft ODBC for ORACLE};Server=localhost;Port=1521;";
            connectionInfo.DatabaseName = "dev";
            connectionInfo.UserID = "...";
            connectionInfo.Password = "...";
            TableLogOnInfos tableLogOnInfos = CrystalReportViewer1.LogOnInfo;
            foreach (TableLogOnInfo tableLogOnInfo in tableLogOnInfos)
                tableLogOnInfo.ConnectionInfo = connectionInfo;
Thank you,
Travis