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Dgraph DQL Tour

Schema

External Identifiers

Dgraph doesn’t support setting external IDs for nodes. If an application requires unique identifiers for nodes other than the UIDs assigned by Dgraph, then these have to be supplied as edges. It’s up to a user application to ensure the uniqueness of such IDs/keys.

More about in https://dgraph.io/docs/mutations/#external-ids

Dgraph DQL Tour

An interactive tutorial with real queries and real results, designed to run on Chrome on your machine.

Modules

. GraphQL Introduction . GraphQL Basic Features . GraphQL Schema . GraphQL Search . GraphQL Data and More Data . DQL Introduction . DQL Basic Features . DQL Schema . DQL Data and More Data . DQL Query Blocks and Variables . DQL Search

DQL Schema

This module shows you how schemas work inside Dgraph; and how to add, update, and delete data.

Module Breakdown

3.1. Adding schema - mutating schema 3.2. Adding Data - mutating data 3.3. External Identifiers 3.4. Language Support 3.5. Reverse edges 3.6. Reverse edges Query 3.7. Exercise : Integrating existing data 3.8. Deleting Data 3.9. Expand Predicate 3.10. Congratulations

3.3 External Identifiers