Microsoft KB Archive/109709

ACC1x: "Can't Update; Currently Locked" Attaching FoxPro Table

Q109709

The information in this article applies to:

Microsoft Access versions 1.0, 1.1

SYMPTOMS

You receive the error message "Couldn't update; currently locked" when you attach or view a previously attached FoxPro table that another user has open and is running an append or update operation on.

CAUSE

This error occurs because FoxPro temporarily locks the table and indexes when a user is performing an append or update operation. The locks are released as soon as the operation is complete.

RESOLUTION

Wait for the append or update operation to be completed, and then attach or view the FoxPro table again.

STATUS

This problem no longer occurs in Microsoft Access version 2.0.

MORE INFORMATION

Steps to Reproduce Behavior

Start Microsoft Access and open any database.
Attach a FoxPro table located on a shared network drive.
Start an append or update query on the attached table. The operation will need to take long enough to complete the rest of these steps.
Start another instance of Microsoft Access on a second computer.

On the second computer, attach the same FoxPro table you attached in step 2. Note that you receive the error message stated above.

NOTE: The following sample code can be used in place of the append or update query in step 3 to keep the first computer busy with the FoxPro table:

      Sub test ()
         Dim db As Database
         Dim ds As Dynaset
         Set db = CurrentDB()

         'Query1 is based on the attached FoxPro table and has no criteria.
         Set ds = db.CreateDynaset("Query1")

         ds.MoveFirst
         While Not ds.eof
            ds.Edit
            ds!Author = "FOX"
            ds.Update
            ds.MoveNext
            Debug.Print ".";
            DoEvents
          Wend
          ds.Close
          db.Close
      End Sub

Keywords : kb3rdparty
Issue type : kbprb
Technology :