POSC Meta Model Specifications Version 2.3 Meta Data Relational Implementation

SUPERSUB (SUPERSUB)

(DDL)

This entity defines the subtype/supertype associations between entities. Querying SUB for all instances with a given value of ORIGIN will return all the direct and indirect subtypes of the ORIGIN. Querying ORIGIN for all instances with a given value of SUB will return all the direct and indirect supertypes of SUB. Querying SUPER for a SUB gives all direct supertypes. Querying SUB for a SUPER gives all direct subtypes.

Primary Key Constraint on: SUPERSUB_S

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