Design a schema

To manipulate graph data in NebulaGraph with Studio, you must have a graph schema. This article introduces how to design a graph schema for NebulaGraph.

A graph schema for NebulaGraph must have these essential elements:

• Tags (namely vertex types) and their properties.

• Edge types and their properties.

In this article, you can install the sample data set basketballplayer and use it to explore a pre-designed schema.

This table gives all the essential elements of the schema.

Element	Name	Property name (Data type)	Description
Tag	player	- name (string) - age (int)	Represents the player.
Tag	team	- name (string)	Represents the team.
Edge type	serve	- start_year (int) - end_year (int)	Represent the players behavior. This behavior connects the player to the team, and the direction is from player to team.
Edge type	follow	- degree (int)	Represent the players behavior. This behavior connects the player to the player, and the direction is from a player to a player.

This figure shows the relationship (serve/follow) between a player and a team.