The Relational model uses a collection of tables to represent both data and the relationships among those data.
A design used in database systems in which relationships are created between one or more flat files or tables based on the idea that each pair of tables has a field in common.
A model that permits the definition of(a) data structures, (b) storage and retrieval operations on them and (c) integrity constraints that are to be maintained on them.
The formal mathematical model of a relational database. models.html
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.
The relational model for database management is a database model based on predicate logic and set theory. It was first formulated and proposed in 1969 by Edgar Codd with aims that included avoiding, without loss of completeness, the need to write computer programs to express database queries and enforce database integrity constraints.