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Neo4j - Sum Function
It takes a set of rows and a <property-name> of a node or relationship as an input and finds the summation value from the given <property-name> column of given rows.
Syntax
Following is the syntax of the SUM() function.
SUM(<property-name>)
Example
Following is a sample Cypher query which demonstrates the usage of the function SUM() in Neo4j. Here we are trying to calculate the SUM of the salaries of the employees
MATCH (n:employee) RETURN SUM(n.sal)
To execute the above query, carry out the following steps −
Step 1 − Open the Neo4j desktop App and start the Neo4j Server. Open the built-in browser app of Neo4j using the URL http://localhost:7474/ as shown in the following screenshot.
Step 2 − Copy and paste the desired query in the dollar prompt and press the play button (to execute the query) highlighted in the following screenshot.
Result
On executing, you will get the following result.
