To find the counts for each node label and relationship type in a Neo4j graph, you can use the COUNT function in combination with the MATCH and RETURN clauses in your Cypher query.
Here is an example Cypher query to find the counts for each node label:
MATCH (n) RETURN labels(n) as NodeLabels, count(*) as count ORDER BY NodeLabels;
In this example, (n) represents a node variable that will match all nodes in the Neo4j graph. The labels(n) function returns the labels associated with each node, and COUNT(n) calculates the count of nodes.
Here is an example Cypher query to find the counts for each relationship type:
MATCH ()-[r]->() RETURN type(r) AS RelationshipType, count(r) AS Count ORDER BY RelationshipType;
In this example,
- MATCH ()-[r]->() matches all relationships r between any two nodes.
- type(r) retrieves the relationship type for each r.
- count(r) counts the occurrences of each relationship type.