Course

Graph Type Schema Enforcement

Define and enforce a graph schema using graph types in Neo4j

40 minutes6 lessons across 1 module

About this lab

In this 40-minute lab, you will learn

In this lab, you will define a graph type schema for the recommendations dataset — a graph of movies, actors, directors, users, genres, and ratings.

You will start by declaring node element types with typed properties, then layer on relationship types and constraints to enforce data quality at the database level. By the end, you will have a complete, enforceable schema that prevents invalid data from entering the graph.

Graph types use an open model: they constrain the elements you define while leaving everything else flexible. This means you can introduce schema enforcement incrementally, without locking down parts of the graph that are still evolving.

Node and relationship types
Define node element types and relationship element types with typed properties to enforce your data model.
Constraints and validation
Add `KEY` and `UNIQUE` constraints and typed, mandatory properties within graph types for data quality enforcement.
Managing graph types
Extend, alter, inspect, and drop graph type elements to evolve your schema over time.

Course content