Understanding subtype behaviour

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Subtypes implemented in USoft automatically behave in such a way that, by default, you can use most features and operations without the need to address supertype-subtype structures explicitly.


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Subtype indicators

Selecting subtype data

Inserting supertype and subtype data

Updating supertype and subtype data

Deleting supertype and subtype data

Relationship inheritance from supertype to subtype (RELATE)

Constraints on supertypes and subtypes

Transitional constraints on supertypes and subtypes

GUI implementation of subtypes


See also

Supertypes and subtypes

Designing subtypes successfully