Skip to content

Examples

Each example answers one question with a small data set, a manifest and a script you can run. Find the question closest to yours, read its page, then run it from its directory under examples/ in a clone of the repository. The repository has a Docker Compose setup under docker/ for every database these examples use; see docker/README.md.

Basic ingestion

No. Question Needs to run
01 How do I ingest CSV files into a graph? ArangoDB
02 How do I link records that refer to records of the same kind? ArangoDB
03 How do I keep several different relations between the same two things? ArangoDB
04 How do I turn nested JSON into a graph when the key names say what the relation is? ArangoDB

Pipeline features

No. Question Needs to run
05 How do I turn price columns into measurements and skip invalid values? ArangoDB
06 How do I ingest a row that mentions the same kind of thing in several roles? ArangoDB
07 How do I ingest one table that holds many kinds of things? ArangoDB
08 How do I ingest a relations table where each row names its own types? ArangoDB

Schema inference

No. Question Needs to run
09 How do I get a graph from a PostgreSQL database without writing a schema? PostgreSQL and ArangoDB
10 How do I turn an OWL ontology and RDF data into a property graph? ArangoDB; the RDF is read from files

Connections

No. Question Needs to run
11 How do I keep database credentials out of the manifest? PostgreSQL and ArangoDB
12 How do I configure several API sources from environment variables? Environment variables only; no API or database is contacted

Bulk load

No. Question Needs to run
13 How do I load a large graph into an empty database? Neo4j

File backend

No. Question Needs to run
14 How do I try GraFlo without a database, and export a graph to files? Nothing to write the graph to disk; Neo4j to export from, ArangoDB to move the graph into

Identity

No. Question Needs to run
15 My data has no obvious key. How do I find out what identifies a record? Nothing; the graph is written to disk
16 How do I link to a record when the source only knows its alternative identifier? Nothing; the graph is written to disk
17 Records arrive with different identifiers filled in. How do I still get one vertex per thing? Nothing; the graph is written to disk
18 Two systems describe the same customers. How do I find the columns that match them? Nothing

Evolution

Evolving a manifest walks through changing one manifest and recording the change; examples 19 and 22 go further, with both directions of a relation and with two histories to reconcile. Merging manifests explains the union behind examples 20 and 21.

No. Question Needs to run
19 How do I get both directions of a relation without declaring every edge twice? Nothing
20 Two teams modeled the same things under different names. How do I combine their manifests? Nothing
21 How do I combine manifests when one source decides the type per row? Nothing
22 Two people changed the same manifest. How do I merge their changes and keep the history? Nothing

Aspects and profiles

No. Question Needs to run
23 How do I turn a plain schema into one that tracks state and measurements over time? Nothing