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Serious Serious
Reported By: Brian Martin
Reported On: 10/8/2019
For: Version 4.48 Build 6
# 4765 Queries that Trigger Progress Events on the Client Can AV if Progress Event Processes Messages

One of our SQL queries causes an AV to pop up in the DBISAM server log, not every time but with a fair frequency.


Comments Comments
The issue was with the client calling Application.ProcessMessages, which then triggered client code to try to execute another SQL statement using the same session that was already executing the original query. The DBISAM Database Server will now issue an "Invalid request" error when this occurs instead of AVing.


Resolution Resolution
Fixed Problem on 10/25/2019 in version 4.48 build 7


Products Affected Products Affected
DBISAM ODBC Client-Server
DBISAM ODBC Client-Server with Source
DBISAM ODBC Standard
DBISAM ODBC Standard with Source
DBISAM ODBC Trial
DBISAM VCL Client-Server
DBISAM VCL Client-Server with Source
DBISAM VCL Standard
DBISAM VCL Standard with Source
DBISAM VCL Trial

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