Demo dataset

This topic introduces the demo dataset that you can use in NebulaGraph Cloud and demonstrates how to load it in NebulaGraph Cloud.

Dataset introduction

The demo dataset is a knowledge graph dataset for movie recommendation. The following figure shows the entities and relationships in the knowledge graph:

Figure 1: Entities and relationships in the knowledge graph

To implement the dataset in GQL, the following node types and edge types are introduced:

Node type name	Label	Property	Primary key
User	Person	id	id
Actor	Person	id, name, and birthDate	id
Director	Person	id, name, and birthDate	id
Movie	Movie	id and name	id
Genre	Genre	id and name	id

Table 1: Node types in the dataset

Edge type name	Label	Property	Source node type name	Destination node type name
Watch	Watch	rate	User	Movie
Act	Act	None	Actor	Movie
Direct	Direct	None	Director	Movie
WithGenre	WithGenre	None	Movie	Genre

Table 2: Edge types in the dataset

The following figure shows the graph model of the dataset in a tabular format:

Figure 2: Graph model of dataset

Load the demo dataset

1. On the Database page, click the name of the database that you created to view the database details.
2. On the left-side navigation pane of the database details page, click Graph under Data.
3. On the SCHEMA tab, click Use Demo Dataset to load the demo dataset.