Question

If there is one super type and there are three subtypes, then how many relations should be created?

Answer 1

You can use supertypes and subtypes when you're creating the conceptual data model. Supertyping and subtyping are techniques that data modelers use to better understand how data is structured and to understand the metadata. Supertypes and subtypes are structures that are used in the requirements-gathering stage of database development.

Answer 2

Answer:

★ Supertypes and Subtypes are techniques that data modelers use to better understand how data is structured and to understand the metadata.

★ Supertypes and Subtypes are structures that are used in the requirements-gathering stage of database development.