Hitachi

Hitachi Advanced Database Application Development Guide


17.1.2 ODBC traces

The driver manager can output information about I/O activity between the application and driver manager to the trace log. This information is called an ODBC trace.

Information is written to an ODBC trace file each time the driver manager receives a request from an application. This makes the data in an ODBC trace useful when debugging applications and investigating the cause of errors.

▪ Acquiring an ODBC trace

To acquire an ODBC trace, on the Tracing tab of the ODBC Data Source Administrator, click Start Tracing Now.

The ODBC trace is output to the path specified in Log File Path. For details about how to acquire an ODBC trace, see ODBC Data Source Administrator in the MSDN Library.

Important

Because the I/O activity of trace log information to a file takes place for each request the driver manager receives from an application, processing performance will decrease when this functionality is in use. For this reason, we recommend that you do not leave ODBC trace output permanently enabled.