Microsoft KB Archive/264766

= FIX: #DELETED Error When Inserting Records with CHAR Primary Key =

Article ID: 264766

Article Last Modified on 4/7/2006

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APPLIES TO


 * Microsoft Access 2000 Service Pack 1
 * Microsoft Access 2002 Standard Edition

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This article was previously published under Q264766



SYMPTOMS
When you insert a new record into a linked ODBC table that has a fixed-length text field (CHAR) as the primary key, #DELETED appears in all of the fields in the new record.

Note If you then close and reopen the linked table, the newly inserted record appears and is properly inserted.



CAUSE
Many ODBC drivers add spaces to (or &quot;pad out&quot;) a CHAR field when the number of characters that are inserted is less than the maximum length of the field. Microsoft Jet 4.0 incorrectly reads back the inserted, padded value and compares it with the original, unpadded value. Because the two values are different, Jet reports to Microsoft Access that the newly inserted record cannot be found.



RESOLUTION
To resolve this problem, install the latest Jet 4.0 service pack. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

239114 How To: Obtain the Latest Service Pack for the Microsoft Jet 4.0 Database Engine



WORKAROUND
Use a variable-length text field (VARCHAR) as the primary key for the table.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was fixed in Jet 4.0 Service Pack 6 (SP6).



Steps to Reproduce Behavior
You can reproduce this problem by linking to a DB2, Oracle, or Microsoft SQL Server database. The problem does not seem to occur unless you have at least 60 or more records in the linked table.

If you examine an ODBC trace taken during the insert operation, you will see that Jet inserts and reselects the record properly, and that no errors occur in the trace. The problem occurs after Jet retrieves the record, and attempts to compare the reselected key value with the value that was entered by the user.

To reproduce this behavior, perform the following steps:   Run the following Microsoft Visual Basic code to generate the test table and records: Sub GenerateTestTable Dim conn As Object Dim i As Long, sql as String Set conn = CreateObject(&quot;adodb.connection&quot;) ' Change connection string to point to your SQL Server if needed. conn.Open &quot;Provider=SQLOLEDB;Server=(Local);Database=Pubs;UID=sa;PWD=;&quot; On Error Resume Next conn.Execute &quot;drop table tmp_chartest&quot; On Error GoTo 0 sql = &quot;create table tmp_chartest(f1 char(5) primary key, f2 char(10))&quot; conn.Execute sql For i = 1 To 70 sql = &quot;insert into tmp_chartest (f1,f2) values ('&quot;       sql = sql & Format(i, &quot;000&quot;) & &quot;','XXXXXXXXXX')&quot; conn.Execute sql Next i   conn.Close Set conn = Nothing End Sub  Start Microsoft Access 2000, and link to the tmp_chartest table that was created in the previous step. Open the newly-linked table, and scroll to the last record in the table. Add a new record with field F1 = 071 and field F2 = XXXXXXXXXX. Tab off the record, and you should see #DELETED displayed in all of the fields.</li></ol>

Additional query words: deleted

Keywords: kbbug kbfix kbqfe kbdatabase kbjet kbhotfixserver KB264766

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