Relationship Model in DBMS

  • A branch of set theory that deals with logical relationships between sets. The Relational Model underlies OOA/D Class Models.
  • This is a more general model than the Relational Data Model.
  • In an OOA/D context explicate identity and referential attributes are not required.
  • In an OOA/D context relationships are much more abstract than in the Relational Data Model.
  • In addition, the logical properties include behaviors as well as data.

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