apoc.atomic.concat

Procedure

apoc.atomic.concat(container ANY, propertyName STRING, string STRING, retryAttempts INTEGER) - sets the given property to the concatenation of itself and the STRING value. The procedure then sets the property to the returned STRING.

Signature

apoc.atomic.concat(container :: ANY, propertyName :: STRING, string :: STRING, retryAttempts = 5 :: INTEGER) :: (container :: ANY, property :: STRING, oldValue :: ANY, newValue :: ANY)

Input parameters

Name Type Default

container

ANY

null

propertyName

STRING

null

string

STRING

null

retryAttempts

INTEGER

5

Output parameters

Name Type

container

ANY

property

STRING

oldValue

ANY

newValue

ANY

Usage examples

The examples in this section are based on the following sample graph:

CREATE (:Person {name:'Tom',age: 40})
CREATE (:Person {name:'Will',age: 35})
CREATE (:Person {name:'David', children: ['Anne','Sam','Paul']})
CREATE (:Person {name:'John', cars: ['Class A','X3','Focus']})
CREATE (:Person {name:'Ryan', salary1:1800, salary2:1500});
The following concatenates iam to the name property for Will:
MATCH (p:Person {name:'Will',age: 35})
CALL apoc.atomic.concat(p,"name",'iam',5)
YIELD oldValue, newValue
RETURN oldValue, newValue;
Table 1. Results
oldValue newValue

"Will"

"William"