1. Example

2. References

3. External References

AQL is the SQL-like query language^[1] used in the ArangoDB database management system. It supports CRUD operations for both documents (nodes) and edges, but it is not a data definition language (DDL). AQL does support geospatial queries.

AQL is JSON-oriented as illustrated by the following query, which also illustrates the intuitive "dot" notation for accessing the values of keys:

 FOR x IN [{"a": {"A":1}}, {"a": {"A": 2}}]     FILTER x.a.A < 2     RETURN x.a

Example

The following is a parameterized query for finding the number of descendants of a particular node (@start) in a graph named @g with @max nodes:

 FOR v IN 1 .. @max OUTBOUND @start GRAPH @g     OPTIONS {uniqueVertices: "global", bfs: true } COLLECT WITH COUNT INTO c RETURN c

The uppercase words are AQL keywords. Notice how AQL is graph-aware. The OPTIONS are necessary to ensure the query can be run on a graph with cycles;

"bfs" stands for breadth-first search.

References

External References

• [https://docs.arangodb.com/current/AQL/index.html|AQL Documentation]

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