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.

Browser App

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.

Return Sum

Result

On executing, you will get the following result.

Sum Values
neo4j_aggregation_function.htm
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