Create a schema¶

To batch import data into Nebula Graph, you must have a graph schema. You can create a schema on the Console page or on the Schema page of Studio.

Prerequisites¶

To create a graph schema on Studio, you must do a check of these:

• Studio is connected to Nebula Graph.

• Your account has the privilege of GOD, ADMIN, or DBA.

• The schema is designed.

• A graph space is created.

Create a schema with Schema¶

To create a schema on the Schema page, follow these steps:

1. Create tags. For more information, see Operate tags.

2. Create edge types. For more information, see Operate edge types.

Create a schema with Console¶

To create a schema on the Console page, follow these steps:

1. In the toolbar, click the Console tab.

2. In the Current Graph Space field, choose a graph space name. In this example, basketballplayer is used.

   

3. In the input box, enter these statements one by one and click the button .

   // To create a tag named "player", with two property
   nebula> CREATE TAG player(name string, age int);
   
   // To create a tag named "team", with one property
   nebula> CREATE TAG team(name string);
   
   // To create an edge type named "follow", with one properties
   nebula> CREATE EDGE follow(degree int);
   
   // To create an edge type named "serve", with two properties
   nebula> CREATE EDGE serve(start_year int, end_year int);
   

If the preceding statements are executed successfully, the schema is created. You can run the statements as follows to view the schema.

// To list all the tags in the current graph space
nebula> SHOW TAGS;

// To list all the edge types in the current graph space
nebula> SHOW EDGES;

// To view the definition of the tags and edge types
DESCRIBE TAG player;
DESCRIBE TAG team;
DESCRIBE EDGE follow;
DESCRIBE EDGE serve;

If the schema is created successfully, in the result window, you can see the definition of the tags and edge types.

Next to do¶

When a schema is created, you can import data.