Create a new class where the schema of the vertexes or edges is known. OrientDB allows (encourages) classes to be derived from other class definitions – this is achieved by using the COMMAND call with an OrientDB SQL command. Returns the id of the new class created.
Syntax: http://<server>:[<port>]/class/<database>/<class-name>
HTTP POST request: http://localhost:2480/class/demo/Address2
HTTP response: 9