Creating a Bar Chart to Check Duplicates Create a bar chart to check duplicate data. To create a bar chart to check duplicate data in the PATNO column: Procedure On the toolbar, click Chart. In the Chart type area, click bar. Keep the default chart setting. Click Create chart. ResultA bar chart is created. The chart shows that PANTO 002, 003, and 006 have duplicates. Copyright © Cloud Software Group, Inc. All Rights Reserved.