Neo4j is a transactional database, that's why in-flight updates have to be isolated between clients which consumes memory. For large updates this might be unfeasible. With apoc.periodic.iterate you can batch and parallelize the processing of large volumes of data from the graph, files, other databases for updates, data creation or deletes.
Efficiently Updating and Inserting Data With apoc.periodic.iterate (#6)
03 Jul, 2018