"No response from the backend application". Oracle DB

Hi everybody,
I have a problem with a connection to a Oracle DB. Here are the steps:
1. I created a system in my portal to call a Oracle DB with the SAP template com.sap.portal.systems.jdbc.jdbc_system
2. I filled the parameters and the conection test is ok.
3. I created an iView based on com.sap.portal.applications.enterprise.iviews.Database_JDBC_iView
4. This iView use the system I created before and is sending a simple query.
The result is the message:
"No response from the backend application"
I have been reading the page
http://help.sap.com/saphelp_nw04/helpdata/en/29/acd8403e37762ae10000000a155106/frameset.htm
in Help.sap and i supose that my case could be 1.2 because I have mapped an user (case 1.1) and my DB is up and connection is ok (case 1.3), but...what have i to recheck in my configuration to remedy the situation??
Thanks all.
Guillermo.

Hi Ramesh,
Yes I am using the driver class but in the connection URL I wrote jdbc:sap:oracle://183.145.5.10:1527;sid=HEX
And here my question is, have I to put user and password of the administrator of the DB in this parameter? I dind't put because I mapped later in user management.
And the connection tests is successful.
Thanks for the awnser.
Guillermo.

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Edited by: Venkat Battula on Aug 18, 2010 7:22 PM

>
Venkat Battula wrote:
> Looks like even trusted connection and RFC also doesn't work as all ids got disabled because of the productive password parameter set. I see only alternative for me is delete sap* and activate all the ids.
>
> Thank you all very much for sharing your thoughts and really appreciate your prompt response with great suggestions.
>
> Thank you all once again,
> Venkat
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can manual.pdf ‏1437 KB

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          > >
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          > >do that
          > >?
          > >
          > >App Common has structure:
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          > > Common
          > > /header.html
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          > >
          > >and App Custom has an jsp page
          > > /demo.jps
          > >
          > >
          > >and demo.jsp looks like
          > >
          > ><%@ include file="../Common/header.html" %>
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          > ><%@ include file="../Common/footer.html" %>
          > >
          > >
          > >Is it possible to move outside of app (Servlet) context ?
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          > >Thanks,
          > >tj
          > >
          > >
          > >
          >

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Or
\\Domain.com\DFS NameSpace\File Share
Thanks.
Jeremy Wu
TechNet Community Support

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Inconsistent accessibility: base class 'Capture.Hook.BaseDXHook' is less accessible than class 'Capture.Hook.DXHookD3D9'
And the BaseDXHook class:
namespace Capture.Hook
internal abstract class BaseDXHook: IDXHook
protected readonly ClientCaptureInterfaceEventProxy InterfaceEventProxy = new ClientCaptureInterfaceEventProxy();
public BaseDXHook(CaptureInterface ssInterface)
this.Interface = ssInterface;
this.Timer = new Stopwatch();
this.Timer.Start();
this.FPS = new FramesPerSecond();
Interface.ScreenshotRequested += InterfaceEventProxy.ScreenshotRequestedProxyHandler;
Interface.DisplayText += InterfaceEventProxy.DisplayTextProxyHandler;
InterfaceEventProxy.ScreenshotRequested += new ScreenshotRequestedEvent(InterfaceEventProxy_ScreenshotRequested);
InterfaceEventProxy.DisplayText += new DisplayTextEvent(InterfaceEventProxy_DisplayText);
~BaseDXHook()
Dispose(false);
How can i solve it so i can use the variable framesperhourtodisplay in the DXHookD3D9 class with the TestScreenshot windows forms application ?

Hi,
I dont know if it will work here, since I dont know the complete structure, but the base call must be public, if the derived class is public, so the base class is at least as accessible as the derived class.
Try make the base class public. (And maybe the base-class IDXHook of the base also...)
Or use a different approach and make only the properties public that are needed to be public by adding an extra class...
A structure could look like:(you need to create a class thats public in your dll and expose a property, and set this property in the internal class...)
In the Accessing class (here Form1)
public partial class Form1 : Form
public Form1()
InitializeComponent();
private void Form1_Load(object sender, EventArgs e)
C c = new C();
MessageBox.Show(B.F.ToString());
and in the class Lib:
internal class A
public A()
B.F = DateTime.Now.Millisecond;
public class B
public static int F { get; set; }
public class C
public C()
A a = new A();
(add a referenc to the class lib from the accessing project)
Regards,
Thorsten

"No response from the backend application". Oracle DB

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