I tried this but it's still showing null
as you can see in the screen. Please help to solve this.
REGEXP_EXTRACT(X,"[0-9]*[0-9]")
It can be achieved using the Calculated Field below which uses the REGEXP_EXTRACT
function to extract the numbers and the CAST
function to ensure that it's a Number field:
CAST(REGEXP_EXTRACT(Attività, "(\\d+)") AS NUMBER )
Google Data Studio Report and GIF to elaborate: