2.4 · Lesson

Unique IDs and Constraints

In the previous lessons, you set a unique ID when creating Full definition for node (opens in a new tab)A vertex in a graph. In a property graph it can carry labels and properties..

In this lesson, you will explore the importance of unique IDs, Full definition for constraint (opens in a new tab)A rule the database enforces on every node or relationship with a given label or type, rejecting any write that breaks it. and indexes.