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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.

The relationship between players and between players and teams

Last update: October 24, 2023