FIX: Multiuser Updates Do Not Flush Correctly
ID: Q127841
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The information in this article applies to:
-
Microsoft FoxPro for Windows, versions 2.5x, 2.6x
SYMPTOMS
After you use the REPLACE or UPDATE commands in a multiuser environment,
the modified records are not written back to the .DBF file correctly.
RESOLUTION
Perform one of the following to work around this problem:
- Use the FLUSH command immediately after the REPLACE or UPDATE command
to write all buffers to the .DBF file.
-or-
- Keep a BROWSE window open at all times on one of computers that has the
multiuser table open. A BROWSE window kept open all the time causes
FoxPro to write back its buffers after the interval set by the SET
REFRESH command.
-or-
- Use the REPLACE ALL command only when a .DBF file is opened in exclusive
mode.
STATUS
Microsoft has confirmed this to be a problem in the Microsoft products
listed at the beginning of this article. This problem was corrected in
Visual FoxPro 3.0 for Windows.
MORE INFORMATION
NOTE: This problem does not occur in FoxPro for MS-DOS.
Steps to Reproduce Problem
CAUTION: Performing these steps changes all records of the CUSTOMER.DBF
table located in the TUTORIAL subdirectory.
- Start two instances of FoxPro on the same or different computers. If
both instances are on the same computer, arrange the screen so you can
see both instances at the same time.
- In the first instance, type the following in the Command window:
SET EXCLUSIVE OFF
SET REFRESH TO 1,1
USE SYS(2004)+"\Tutorial\Customer"
BROWSE
- In second instance, type the following in the Command window, but do not
perform a BROWSE.
SET EXCLUSIVE OFF
SET REFRESH TO 1,1
USE SYS(2004)+"\Tutorial\Customer"
REPLACE ALL contact WITH "Test"
Notice that only the first record in the BROWSE window of the first
instance has changed.
Additional query words:
Fixlist3.00 vFoxwin 2.50 2.50a 2.50b 2.60 2.60a FoxWin buglist2.50 buglist2.50a buglist2.50b buglist2.60 buglist2.60a
Keywords : FxprgMultiuser
Version : 2.50 2.50a 2.50b 2.60 2.60a
Platform : WINDOWS
Issue type :