PRB: Failing SQLExec() Breaks Connection with Oracle Server

• Microsoft Visual FoxPro for Windows, versions 3.0, 3.0b

SYMPTOMS

When using the Oracle 7.3 ODBC Driver (version 1.15.0301) provided by Oracle Corporation to connect to an Oracle server, if an SQLExec() call encounters an error, the connection to the server is no longer valid. Issuing subsequent SQLExec() calls after a previous command has failed results in the following error:

   Connectivity error. [Oracle][ODBC Oracle Driver]Operation cancelled.

RESOLUTION

This problem occurs only with the Oracle 7.3 ODBC driver provided by Oracle Corporation. Using the Visigenic Oracle ODBC Driver (version 2.00.0000) or the Microsoft Oracle ODBC Driver (version 2.00.006325) works correctly. This problem does not occur in Visual FoxPro version 5.0 or 5.0a.

STATUS

Microsoft is researching this problem and will post new information here in the Microsoft Knowledge Base as it becomes available.

MORE INFORMATION

Steps to Reproduce Behavior

1. Create an ODBC data source using the Oracle 7.3 ODBC driver.

2. Connect to this data source using the SQLConnect() function:

         Handle=SQLConnect(<Oracle DSN>,<user id>,<password>)
   

3. Send an invalid SQL statement to the Oracle server:

         =SQLExec(Handle,"This is an invalid SQL command")
   

4. Send a valid SQL statement to the Oracle server.