JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. Removing a Column Remove a column when you need to remove the condition or action for the entire decision table. Note: You cannot remove the last condition column because a minimum of one condition column must exist if you have any action columns. Procedure Right click the column header and click Remove to remove the column from the decision table. Copyright © TIBCO Software Inc. All rights reserved.