Crystal Reports version 8.5:

    • Open the Crystal report.

    • Select File, Report Options from the menu bar.

    • Mark the Convert NULL field value to default checkbox.

    • Click OK.

    Crystal Reports version XI:

      • Select Report Options from the File menu on the top menu bar.

      • Mark the 'Convert NULL values to Default' and 'Convert other NULL values to Default' checkboxes.

      • Click OK.

      • Preview the report.