Oracle - How to create a materialized view with FAST REFRESH and JOINS

Question

So I\'m pretty sure Oracle supports this, so I have no idea what I\'m doing wrong. This code works:

CREATE MATERIALIZED VIEW MV_Test
  NOLOGGING
  CACHE
  B         


        

Answer 1

You will get the error on REFRESH_FAST, if you do not create materialized view logs for the master table(s) the query is referring to. If anyone is not familiar with materialized views or using it for the first time, the better way is to use oracle sqldeveloper and graphically put in the options, and the errors also provide much better sense.