Question

Hiererchical Model , Explain ( RDBMS ) .

Answer 1

Hierarchical data base is organized in to a tree like structure implying a single upward link in each record to describe the nesting.Data is represented as a series of parent/child relationships.
There is It 1:N relation between two record type. The record type 1 side is parent record type and one on the N side is called child record type of the Parent-Child Relationship type.