Definitions for "Relational model"
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.
a waste of time if nothing is done to simplify the indexation process