Neo4j Property Graph Data Model
Neo4j Graph Database follows the Property Graph Model to keep and manipulate its records.
Following are the key features of Property Graph Model −
- The model represents records in Nodes, Relationships and Properties
- Properties are key-price pairs
- Nodes are represented using circle and Relationships are represented using arrow keys
- Relationships have guidelines: Unidirectional and Bidirectional
- Each Relationship includes "Start Node" or "From Node" and "To Node" or "End Node"
- Both Nodes and Relationships include residences
In Property Graph Data Model, relationships must be directional. If we attempt to create relationships without path, then it will throw an errors message.
In Neo4j too, relationships have to be directional. If we strive to create relationships without course, then Neo4j will throw an errors message announcing that "Relationships have to be directional".
Neo4j Graph Database stores all of its statistics in Nodes and Relationships. We neither want any extra RRBMS Database nor any SQL database to keep Neo4j database records. It stores its records in phrases of Graphs in its native format.
Neo4j makes use of Native GPE (Graph Processing Engine) to paintings with its Native graph garage format.
The predominant constructing blocks of Graph DB Data Model are −
Following is a simple example of a Property Graph.
Here, we have represented Nodes using Circles. Relationships are represented the use of Arrows. Relationships are directional. We can represent Node's data in terms of Properties (key-price pairs). In this case, we have represented each Node's Id property within the Node's Circle.