ACC2000: Run-Time Error '3027' Using ODBCDirect to Open RecordSet

When you use an ODBCDirect connection to open a recordset, you may receive the following error message if you use the .AddNew method:

This behavior can occur because, by default, Microsoft Access opens a read-only recordset in an ODBCDirect workspace. The read-only recordset gives better performance when you scroll through the recordset.

If you want to be able to modify a recordset in an ODBCDirect workspace, you must specify a LockEdits argument with the OpenRecordset method. The full syntax for the OpenRecordset method is as follows: You create an editable recordset when you use one of the following constants in the LockEdits argument of the OpenRecordset method: For example, the following line of sample code opens an editable recordset that uses optimistic record locking: NOTE: You must supply a zero (0) for the Options argument.

Steps to Reproduce Behavior

The following example assumes that you have an Open Database Connectivity (ODBC) data source that opens the Pubs database in Microsoft SQL Server.

1. Start Access and open the sample database Northwind.mdb.
2. Create a module, and then type the following procedure: NOTE: When you use the Visual Basic Editor from within other Microsoft Office 2000 programs, you must first ensure that the Microsoft DAO 3.6 object library is included in your References.

   Sub ConnectAndAddRecords(UID as String, DSN as String, _
                            Optional PWD as String)
      Dim wrkODBC As Workspace
      Dim conPubs As Connection
      Dim rstTmp As Recordset
   
   ' Create an ODBCDirect workspace.
      Set wrkODBC = CreateWorkspace _
          ("NewODBCWorkspace", "admin", "", dbUseODBC)
   
   ' Open a connection to an ODBC data source.
      Set conPubs = wrkODBC.OpenConnection("Connection1", _
          dbDriverNoPrompt,,"ODBC;DATABASE=pubs;UID=" & UID _
          & ";PWD=" & PWD & ";DSN=" & DSN)
   
   ' Open a recordset which is read-only by default.
      Set rstTmp = conPubs.OpenRecordset("Authors", dbOpenDynamic)
   
      rstTmp.AddNew
      rstTmp!au_id = "111-11-1111"
      rstTmp!au_lname = "Dickens"
      rstTmp!au_fname = "Charles"
      rstTmp!Contract = 0
      rstTmp.Update
      rstTmp.Close
      conPubs.Close
      wrkODBC.Close
   End Sub
   					

3. To test this procedure, type the following line in the Immediate window, and then press ENTER: NOTE: Substitute your own username, ODBC data source name and password for the UID, DSN, and optional Password arguments in the following example:
   ConnectAndAddRecords "UID","DSN","Password"

Note that the code fails on the rstTmp.AddNew line with the following error message:

For more information about ODBCDirect, click Microsoft Visual Basic Help on the Help menu, type differences between odbc drivers and built-in drivers for external data in the Office Assistant or the Answer Wizard, and then click Search to view the topic.

For more information about the ODBCConnectStr property, click Microsoft Visual Basic Help on the Help menu, type odbcconnectstr property in the Office Assistant or the Answer Wizard, and then click Search to view the topic.