To add attributes to a feature class

1. Right-click the feature class to which you want to add a column.
2. Click Add Attributes to open the Add Attributes dialog box.
3. Add attributes as shown in the following table.

   Add Attribute Dialog Box	Description
   Name	Specifies the column name. Enter a name that complies with Oracle format restrictions. If the column relates to data in another table, it is recommended that you use a prefix to indicate this relationship. Example: FID_<parent> or ID_<domain>.
   Caption	Specifies the caption to be displayed in the feature class form. You can modify this caption later with the Form Designer.
   Description	The description is shown as tool tip when the user points to the attribute in the detail pane of the data model administrator.
   Unit Type	Selects a unit type, if required, such as Angle or Area.
   Unit	Selects an appropriate unit, such as Gon Clockwise or Square Meter.
   Type Precision and Scale	Specifies type and precision. In the list box, select the appropriate type, subject to Oracle specifications. See also Attribute Type, Precision and Scale.
   Default Value	Specifies a default value. Optionally, assign a default value and specify whether the attribute is mandatory or optional.
   Optional	Specifies whether the attribute is optional.
   Parent Tables	Attribute relation settings, including Relation Type, Split Rule, and Merge Rule. See also Parent Table Settings.
   Select Domain	Adds the relation to a domain table.
   Select Feature Classes	Adds one or more relations to a feature class.

For more information refer to Oracle Administrator's Guide.