%META:TOPICPARENT{name="TroubleshootingUDALoggingTracing"}%
= Tracing ODBC Activity with <nop>OpenLink ODBC Scan =

# Launch the **<nop>OPLScan32** executable.
# Expand the **Query** menu.
# Click **Connect.**
# Select your target DSN.
# Click **OK.**
# Provide authentication, as needed.
# Click **OK.**
# Expand the **Trace** menu.
# Insure **Time Each API** is checked.
# Select **Options.**
# Click the **Data Source** icon.
# Use the Data Source folders to locate your Data Source.
# Highlight your Data Source.
# Click the **Options** icon.
# Insure **Log to File** is checked.
# Set a path for the log file, e.g., {{{C:\scan.log}}}, in the text box.
# Click **OK.**
# Expand the **Trace** menu.
# Click **Start.**
# Perform your query with your application.
# Check your target log file for the desired output.

If your target log file is empty, try this:

# Expand the **Trace** menu.
# Click **Options.**
# Click the **Process** icon.
# Choose one of these two options:
#* Click **Trace Log Against Process** and pick the process from the list box
#* Click **Trace Log Against Exe** and pass the full path to your application executable
# Click **OK.**
# Click the **Trace** menu.
# Click **Start.**
# Repeat the query with your application.
# Check your target log file for the desired output.