Devart Forums

Posted: **Thu 14 Oct 2010 12:26**

dbexpsda.dll version 4.55.23
Delphi 2007 for Win32 Version 11.0.2804.9245
Windows Vista Build 6002 SP2
Microsoft SQL-Server 2005

We have a problem with a CreateAndFillParamAccs error message which allways appears in the following scenario:

Step 1:
Insert a new record into a ClientDataSet which will create a error if it is applied.

Code: Select all

  // Insert a new record without providing a value for the NOT NULL column
  cdsTest.Append;
  cdsTestTestID.Value := -1;
  cdsTestDataRequired.Clear;
  cdsTestDataOptional.Value := 'some data';
  cdsTest.Post;

  // This will show the expected NOT NULL error
  cdsTest.ApplyUpdates(0);

Calling ApplyUpdates leads to the expected error message.

Step 2:
Correct the error by entering the missing value and call ApplyUpdates again.

Code: Select all

  // provide the missing value
  if cdsTest.Locate('TestId', -1, []) then
  begin
    cdsTest.Edit;
    cdsTestDataRequired.Value := 'more data';
    cdsTest.Post;
  end;

  // This shows the CreateAndFillParamAccs Error
  cdsTest.ApplyUpdates(0);

This allways leads to the following error message:

procedure CreateAndFillParamAccs already called (OLEDBAccess.pas, line 5666)

Step 3:
Dont change anything and just call ApplyUpdates again.

Code: Select all

cdsTest.ApplyUpdates(0)

The new record has now been inserted into the database.

The table used for the above steps has been created like this:

Code: Select all

-- Create a simple test table
IF Object_ID('TestTbl') IS NOT NULL
	DROP TABLE TestTbl

CREATE TABLE TestTbl
(
	TestID int IDENTITY(1,1) NOT NULL,
	DataRequired VARCHAR(15) NOT NULL,
	DataOptional VARCHAR(15) NULL		
	CONSTRAINT PK_TestTbl PRIMARY KEY
	(
		TestID ASC
	)
)

If needed we can provide a little test program to show how to reproduce this error.

Posted: **Mon 18 Oct 2010 06:41**

Hello,

I cannot reproduce the problem. Please send your test program to andreyz*devart*com.

Posted: **Tue 19 Oct 2010 07:15**

Thank you for information. We have reproduced the problem. The investigation of the problem is in progress. As soon as we solve the problem we will let you know.

Posted: **Mon 25 Oct 2010 13:30**

We have fixed this problem. This fix will be included in the next DbxSda build.

Posted: **Wed 10 Nov 2010 08:21**

Hello, we have almost the same problem (with same message and behavior) but in VCL components for SQL Server. We use SDAC v.4.8.0.60. There is a bugfix in revision history for SDAC v5.x ("Fixed bug with processing parameters when query is executed with error"), but will this bug be fixed for 4.8.x? Thanks.

Posted: **Wed 10 Nov 2010 09:13**

You should upgrade SDAC to version 5.00.0.2 to get this fix. If you have a license for SDAC 4.8, you don't have to buy a new version. Please use your link, username, and password for Registered Users' Area to download SDAC version 5.00.0.2.

Devart Forums

procedure CreateAndFillParamAccs already called error

procedure CreateAndFillParamAccs already called error