Using regular expressions beyond matching in Cypher

Question

I make the following query

neo4j-sh (?)$ start n=node(*) where n.name  =~ \'u(.*)\' return n; 
==> +-----------------------+
==> | n                     |
         


        

Answer 1

You can't do that in Cypher (as far as I know)--regex is just for matching.

If it's always just a single letter in front of it, you can take the substring:

start n=node(*) 
set n.userId = substring(n.name, 1)