SELECT Id FROM CASE WHERE Id <> null
or
SELECT Id FROM CASE WHERE Id = null

don't think there's anything like distinct though

Thanks once again...

np

if you haven't got it yet, go grab the sforce explorer. It really helps with these queries

http://sforce.sourceforge.net/

I do have it and yes, it is definitely a MUST HAVE !!!

Although, can you ever get the more... button to work.  I always get a .NET exception :

See the end of this message for details on invoking
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.InvalidCastException: Specified cast is not valid.
   at sforceExplorer.frmMain.GetNextSet()
   at sforceExplorer.frmMain.btnMore_Click(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ButtonBase.WndProc(Message& m)
   at System.Windows.Forms.Button.WndProc(Message& m)
   at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

************** Loaded Assemblies **************
mscorlib
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.2032
    CodeBase: file:///c:/windows/microsoft.net/framework/v1.1.4322/mscorlib.dll
----------------------------------------
sforceExplorer
    Assembly Version: 1.0.1851.18391
    Win32 Version: 1.0.1851.18391
    CodeBase: file:///C:/Program%20Files/salesforce.com/sforce%20Explorer/sforceExplorer.exe
----------------------------------------
System.Windows.Forms
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.2032
    CodeBase: file:///c:/windows/assembly/gac/system.windows.forms/1.0.5000.0__b77a5c561934e089/system.windows.forms.dll
----------------------------------------
System
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.2032
    CodeBase: file:///c:/windows/assembly/gac/system/1.0.5000.0__b77a5c561934e089/system.dll
----------------------------------------
System.Data
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.2032
    CodeBase: file:///c:/windows/assembly/gac/system.data/1.0.5000.0__b77a5c561934e089/system.data.dll
----------------------------------------
System.Xml
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.2032
    CodeBase: file:///c:/windows/assembly/gac/system.xml/1.0.5000.0__b77a5c561934e089/system.xml.dll
----------------------------------------
System.Drawing
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.2032
    CodeBase: file:///c:/windows/assembly/gac/system.drawing/1.0.5000.0__b03f5f7f11d50a3a/system.drawing.dll
----------------------------------------
System.Web.Services
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.2032
    CodeBase: file:///c:/windows/assembly/gac/system.web.services/1.0.5000.0__b03f5f7f11d50a3a/system.web.services.dll
----------------------------------------
DocumentControl
    Assembly Version: 1.0.0.0
    Win32 Version: 1.0.0.0
    CodeBase: file:///C:/Program%20Files/salesforce.com/sforce%20Explorer/DocumentControl.DLL
----------------------------------------
System.Web
    Assembly Version: 1.0.5000.0
    Win32 Version: 1.1.4322.2037
    CodeBase: file:///c:/windows/assembly/gac/system.web/1.0.5000.0__b03f5f7f11d50a3a/system.web.dll
----------------------------------------
b4psdrnj
    Assembly Version: 0.0.0.0
    Win32 Version: 1.1.4322.2032
    CodeBase: file:///c:/windows/assembly/gac/system/1.0.5000.0__b77a5c561934e089/system.dll
----------------------------------------
l5b00_vs
    Assembly Version: 0.0.0.0
    Win32 Version: 1.1.4322.2032
    CodeBase: file:///c:/windows/assembly/gac/system/1.0.5000.0__b77a5c561934e089/system.dll
----------------------------------------
ICSharpCode.SharpZipLib
    Assembly Version: 0.5.0.0
    Win32 Version: 0.5.0.0
    CodeBase: file:///C:/Program%20Files/salesforce.com/sforce%20Explorer/ICSharpCode.SharpZipLib.DLL
----------------------------------------
f8mgee-i
    Assembly Version: 0.0.0.0
    Win32 Version: 1.1.4322.2032
    CodeBase: file:///c:/windows/assembly/gac/system/1.0.5000.0__b77a5c561934e089/system.dll
----------------------------------------
Microsoft.VisualBasic
    Assembly Version: 7.0.5000.0
    Win32 Version: 7.10.6001.4
    CodeBase: file:///c:/windows/assembly/gac/microsoft.visualbasic/7.0.5000.0__b03f5f7f11d50a3a/microsoft.visualbasic.dll
----------------------------------------

************** JIT Debugging **************
To enable just in time (JIT) debugging, the config file for this
application or machine (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the machine
rather than being handled by this dialog.

yeah, i get the same thing.

you see the api is limited to returning 2000 results.
You have to use the QueryMore option to get the next 2000 results.

So there must be some mistake in the code at that step.
Haven't had the time to check it out properly