Oracle SQL update based on subquery between two tables

Question

I am currently writing update statements to keep a query-able table constantly up to date. The schema is identical between both tables and the contents are not important:

Answer 1

Without examples of the dataset of staging this is a shot in the dark, but have you tried something like this?

update PRODUCTION p,
       staging s
set p.name = s.name  
    p.count = s.count
where p.id = s.id

This would work assuming the id column matches on both tables.