An overview of the Subtypes toolset

One of the great advantages of using the geodatabase to store geographic data is the ability to create subtypes for your features and attributes. Subtypes provide a method of dividing your feature classes or tables into logical groupings based on an attribute value. By allowing you to work with a subset of features in a feature class, subtypes make it possible to assign consistent attributes and behavior to those subsets.

Tools in the Subtypes toolset

Tool	Description
Add Subtype	Adds a new subtype to the subtypes in the input table.
Remove Subtype	Removes a subtype from the input table using its code.
Set Default Subtype	Sets the default value or code for the input table's subtype.
Set Subtype Field	Defines the field in the input table or feature class that stores the subtype codes.