Oracle - Materialized View alter structure so slow
问题 I have a huge materailized view that I have to adjust. It's a simple adjustment as I'm just adding an NVL function to the select statement. I.e. Original... Select this, that..... I.e. Modified Select NVL(this, orThat) as this, NVL(That, orThis) as that The query takes 26 seconds to run, but due to the amount of rows retrieved (2.3 million) it is dead slow. It ran for almost 5 days straight and then I stopped it. This is a problem, especially since I need to deliver this to a client, and they