Procedures

Procedures are functions that can be called from within Cypher queries using the CALL syntax.

Syntax

Basic procedure call:

GRAPH.QUERY social "CALL db.labels()"

With explicit YIELD to select specific return values:

GRAPH.QUERY social "CALL db.labels() YIELD label"

Note: The YIELD clause is optional. When omitted, all values listed in the ‘Yields’ column are returned automatically.

Available Procedures

Procedure	Arguments	Yields	Description
db.labels	none	label	Yields all node labels in the graph.
db.relationshipTypes	none	relationshipType	Yields all relationship types in the graph.
db.propertyKeys	none	propertyKey	Yields all property keys in the graph.
db.meta.stats	none	labels, relTypes, relCount, nodeCount, labelCount, relTypeCount, propertyKeyCount	Yield comprehensive graph statistics including maps of labels and relationship types with their counts, total node/relationship counts, and schema metadata counts.
db.indexes	none	label, properties, types, options, language, stopwords, entitytype, status, info	Yield all indexes in the graph, denoting whether they are of the type of exact-match (“RANGE”), full-text (“FULLTEXT”) or vector (“VECTOR”) and which label and properties each covers and whether they are indexing node or relationship attributes.
db.constraints	none	type, label, properties, entitytype, status	Yield all constraints in the graph, denoting constraint type (UNIQUE/MANDATORY), which label/relationship-type and properties each enforces.
db.idx.fulltext.createNodeIndex	label, property [, property …]	none	Builds a full-text searchable index on a label and the 1 or more specified properties.
db.idx.fulltext.drop	label	none	Deletes the full-text index associated with the given label.
db.idx.fulltext.queryNodes	label, string	node, score	Retrieve all nodes that contain the specified string in the full-text indexes on the given label.
db.idx.fulltext.queryRelationships	relationshipType, string	relationship, score	Retrieve all relationships that contain the specified string in the full-text indexes on the given relationship type. See Full-Text Indexing for details.
db.idx.vector.queryNodes	label, attribute, k, query	node, score	Retrieve up to k nodes with vectors most similar to the query vector using the specified label and attribute. See Vector Indexing for details.
db.idx.vector.queryRelationships	relationshipType, attribute, k, query	relationship, score	Retrieve up to k relationships with vectors most similar to the query vector using the specified relationship type and attribute. See Vector Indexing for details.
algo.pageRank	label, relationship-type	node, score	Runs the pagerank algorithm over nodes of given label, considering only edges of given relationship type.
algo.BFS	source-node, max-level, relationship-type	nodes, edges	Performs BFS to find all nodes connected to the source. A max level of 0 indicates unlimited and a non-NULL relationship-type defines the relationship type that may be traversed. See BFS Algorithm for details.
algo.MSF	config	src, dest, weight, relationshipType	Computes the Minimum Spanning Forest of the graph. See MSF Algorithm for details.
dbms.procedures()	none	name, mode	List all procedures in the DBMS, yields for every procedure its name and mode (read/write).