Ajoy,
The vertical bars in a field signify only one thing -> Data corruption. 

First of all create the indexes on all the files from scratch. Do not try to
do a reindex as this will only create the indexes based upon what VFP thinks
is the index expression.

Secondly, open the tables without an index set and browse through the data
until you discover the offending records. Normally the characters entered in
the offending fields simulate end of file and the browse will simply
disappear, in which case you need to do a goto bottom and browse backwards. 
Another way to get good data is to use a SQL select statement and then copy
it back into the original table.

The problems can normally be isolated down to 1 or two records and they are
invariable caused by power off's on machines whilst modifying an index. If
there is memo field corruption this is more difficult to fix and you may
well need to look at something like Foxfix or ABri.

If you aren't using a server than I suggest you make one available with a
fitted UPS and also try NOT to use a Win98 machine to hold the data aon as
there are known caching problems which can also cause these errors when not
using a server.

Dave Crozier


-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Ajoy Khaund
Sent: 18 September 2007 16:18
To: Profox
Subject: VFP6 Data Disappearing (Corrupt)

Hi

I have an app in a pathology lab. Its a multiuser app with generally new
patients been entered from two pc's in the reception and another one or two
pc's are used for reporting. The patient details are kept in
PatHead

while the tests to be done are kept in
PatLine.

Another table for Payments received.

>From the reception these three table are mainly used.

>From the inside PC reports are stored in different tables but the "Patline"
table is also updated whenever a test is reported and saved as done.

The app has been running smoothly since 2002. The pc's are the same, network
wires, hub are all same with win98.

Of late the data in Table "Patline" has started disappearing now and then.
The reporting guy says that when he enters a valid patientid the app shows
no record by that number. Then they check in the reception PC. The header
record in table "Pathead" is there but the records in table "Patline" are
not there. They gave me a copy of the affected database and there are few
records in table "Patline" without any data but the cells appear to have
barcodes which disappear when you click on the cell. Interesting they have
discovered a cure which accoring to them whenever this happens they add a
dummy record in the reception PC and the records which had disappeared comes
back. I tried that with the data they gave me but I did not see that
happening. The tabled do not have much data. The app is more or less what it
was five years back with minor upgrades. The problems have started from this
year. I wonder why this is happening. Any help to put me in the right
direction will be highly appreciated.

TIA


Ajoy Khaund
Neamati Road
Near Bhogdoi Bridge
Jorhat 785 001
Assam, India

Tel: 91-376-2351288
Cell: 91-94350-92287
Mail: [EMAIL PROTECTED]
Mail: [EMAIL PROTECTED]

"Walking on water and developing software from a specification are easy if
both are frozen."
- Edward  V. Berard, "Life-Cycle Approaches"

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