Source: https://dev-docs.nebula-graph.io/v5.3.2/database-gql-reference/overview/example-dataset/
Documentation version: v5.3.2

# Example dataset

The example dataset used throughout these docs contains movie data. Load it to try the queries and explore the graph.

## Prerequisites

You have connected to a NebulaGraph Database Developer Edition service group with [ngql](https://dev-docs.nebula-graph.io/v5.3.2/utilities/ngql/), as described in the [Connect and run your first query](https://dev-docs.nebula-graph.io/v5.3.2/get-started/first-query/#ngql).

## Dataset introduction

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

[![knowledge graph](https://docs-cdn.nebula-graph.com.cn/figures/5.0/core-overview-240806-movie-recommendation.png)](https://docs-cdn.nebula-graph.com.cn/figures/5.0/core-overview-240806-movie-recommendation.png)

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:

[![graph model](https://docs-cdn.nebula-graph.com.cn/figures/5.0/core-overview-tabular_schema.jpg)](https://docs-cdn.nebula-graph.com.cn/figures/5.0/core-overview-tabular_schema.jpg)

Figure 2: Graph model of dataset

## Load the dataset in NebulaGraph Database Developer Edition

1. 

Run the following command in ngql to load the dataset:

````
:play movie

````

2. 

To verify that the dataset is loaded successfully, run the following statement to show graphs:

````
SHOW GRAPHS

````

Return:

````
+----------+------------+-----------------+-------+
| name     | graph_type | schema          | owner |
+----------+------------+-----------------+-------+
| movie    | movie_type | /default_schema | root  |
+----------+------------+-----------------+-------+

````

## Download the dataset files

To obtain the original dataset files, click [here](https://docs-cdn.nebula-graph.com.cn/files/5.x-utilities/import_movie.zip) to download the complete dataset files in CSV format.