Hierarchical data is data that has a parent-child relationship, where each child can have only one parent, and each parent can have zero or more children. For example, a product catalog can have ...

The Nested Set Model is an approach to storing hierarchical data structures in relational databases. It is an alternative to more common Adjacency List Model. The Nested Set Model has a clear ...

The classes in this example implement a hierarchical data model within the Tree Oriented Programming paradigm. They are designed to represent and manipulate tree structures where each node can act as ...

Working with hierarchical data is one of the typical tasks in the industrial information systems development. As a repository of this data, relational databases are usually used. The performance and ...