when retrieving data from Oracle database a VARCHAR2 field being NULL gives an expections. When there is text in the field then the select works ok.

What might be the problem here and how can it be solved?

TIA,

Kari

ps. I did find some other post related to null values put not quite like this. Also, when can we expect the next release with the DevExpress wrapper among other enhancements :-)

Picture attached

As for the DevExpress wrapper, I'm building the install right now.

thanks, that worked fine.

Kari

ps. Is there hope that we would have the next release available still this weekend?

one additional problem: when I try to update the WWW-field I get "ORA-00936 Missing Expression" error.

So this is an Oracle error saying - I guess - that there is a problem with the update SQL-statement. What might go wrong here and is there a way to see the update statement SF is sending to the database.

Thanks again,

Kari

The error window "An error occured while saving an the data to the server"
================

BusinessLayerException
 An error occurred while saving an the data to the server.
DataLayerSavingException
 ORA-00936: missing expression

OracleException
 ORA-00936: missing expression

Source     : MicroFour StrataFrame Business

Stack Trace:
   at System.Data.OracleClient.OracleConnection.CheckError(OciErrorHandle errorHandle, Int32 rc)
   at System.Data.OracleClient.OracleCommand.Execute(OciStatementHandle statementHandle, CommandBehavior behavior, Boolean needRowid, OciRowidDescriptor& rowidDescriptor, ArrayList& resultParameterOrdinals)
   at System.Data.OracleClient.OracleCommand.ExecuteNonQueryInternal(Boolean needRowid, OciRowidDescriptor& rowidDescriptor)
   at System.Data.OracleClient.OracleCommand.ExecuteNonQuery()
   at MicroFour.StrataFrame.Data.OracleDataSourceItem.UpdateRow(QueryInformation QueryInfo, DataRow RowToUpdate, ConcurrencyExceptionHandler ConcurrencyHandler, AddRowErrorHandler RowErrorHandler, Boolean RecreateCommand)
   at MicroFour.StrataFrame.Data.DbDataSourceItem.UpdateRow(QueryInformation QueryInfo, DataRow RowToUpdate, ConcurrencyExceptionHandler ConcurrencyHandler, AddRowErrorHandler RowErrorHandler)
   at MicroFour.StrataFrame.Data.DataLayer.UpdateDataTableThread(Object ThreadParams)
   at MicroFour.StrataFrame.Data.DataLayer.SaveByForm(DataTable TableToSave, Boolean Transactional, String TransactionKey)
   at MicroFour.StrataFrame.Business.BusinessLayer.SaveByForm(Boolean Transactional, String TransactionKey)
   at MicroFour.StrataFrame.UI.Windows.Forms.BaseForm.Save(Boolean Transactional, String TransactionKey)
   at MicroFour.StrataFrame.UI.Windows.Forms.BaseForm.Save()
   at MicroFour.StrataFrame.UI.Windows.Forms.MaintenanceFormToolStrip.cmdSave_Click(Object sender, EventArgs e)
   at System.Windows.Forms.ToolStripItem.RaiseEvent(Object key, EventArgs e)
   at System.Windows.Forms.ToolStripButton.OnClick(EventArgs e)
   at System.Windows.Forms.ToolStripItem.HandleClick(EventArgs e)
   at System.Windows.Forms.ToolStripItem.HandleMouseUp(MouseEventArgs e)
   at System.Windows.Forms.ToolStripItem.FireEventInteractive(EventArgs e, ToolStripItemEventType met)
   at System.Windows.Forms.ToolStripItem.FireEvent(EventArgs e, ToolStripItemEventType met)
   at System.Windows.Forms.ToolStrip.OnMouseUp(MouseEventArgs mea)
   at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.ScrollableControl.WndProc(Message& m)
   at System.Windows.Forms.ToolStrip.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

what might be the problem here: with the new relaese I still get the same ORA-00936 error mentioned in my previous post. Setting the debug on only shows the select statement - still the error appears when trying to save the changes.

Currently I'm testing this with the simplest possible query - just a couple of columns in the table. With SF samples everything is ok. Might the problem be with the SQL and Oracle? Unfortunately I didn't manage to find the right place to debug the application so that I could see the UPDATE statement.

Any ideas how to resolve this...?

Thank you for all your help,
Kari

Once you get it installed, it should give you more information in the debug file.  Also, if you can get the version of Oracle that you're running, the table structure (screenshot or CREATE TABLE script would be fine), and the .Designer.vb file for the business object and post those with the output from the debug file, it will go a long way towards helping me to reproduce the error. 

Let me know Thanks

P.S.  I'll post the maintenance install here in a second.

Thanks

and thanks for all the help. The new SF showed nicely what was the problem. As I read it,  SF adds a couple of extra "AND"'s into the update's where clause:

Here is the SQL for the table

===================================================
-- Table EMP

CREATE TABLE emp
 (
  emp_no                     NUMBER(10) NOT NULL,
  emp_name                   VARCHAR2(50)
 ;

-- Constraints for EMP

ALTER TABLE emp
 ADD CONSTRAINT pk_emp PRIMARY KEY (emp_no);

INSERT INTO EMP (EMP_NO, EMP_NAME) VALUES (1,'Bart Simpson');
=====================================================

Attached is the full debug.html file in PDF format.  What I did was 1) retrieve the data => ok, 2) update the EMP_NAME to 'Bart Simpson testing update' => error. I'm using Oracle 10gR2 running on a WinXP machine.

Hope this helps,

Kari

I'll get it fixed and post you an update ASAP.  Thanks for the help.  I'll have to take a look at my unit tests and figure out why that one wasn't picked up...

just downloaded the latest (8.6.2006) version of SF but the problem updating Oracle database still seems to be there....

Any estimate when the final version of 1.4.1 will be available?

Cheers

Kari

I am answering this from the floor of Tech-Ed and we will be out of the office all week.  We will get your problem resolve first thing when we get back.  Sorry for any trouble.

any news relating the Oracle update probkem...?

Cheers,

Kari

any news on the fix for Oracle? I today (20-JUL-06) downloaded the SF Installation package for DevEx 6.15 and tested the Oracle update. The " AND AND AND " problem is still open, I quess...?

Cheers,

Kari