View Incident Report

Serious

Reported By: Christian Sanggaard
Reported On: 8/26/2009
For: Version 4.28 Build 5

# 3040 BLOB Fields Can Appear Non-NULL When They Are Really NULL With Remote Sessions

I've discovered that DBISAM TBlobField.IsNull method return False, even when the field is empty.

tblEmployee.Open;
tblEmployee.Append;
tblemployeeNo.AsString := '0000000999';
tblEmployeeName.AsString := 'Test';
// Now the blob field Is Null
s := tblEmployeeComments.AsString;
// Here something happens.
// Now IsNull return false

Resolution

Fixed Problem on 9/4/2009 in version 4.29 build 1

Products Affected

DBISAM Additional Software and Utilities
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

More Support Options

Search Incident Reports

Support Forums

Frequently Asked Questions

Technical Bulletins

Technical Articles

Product Manuals

Roadmap