Truncate mviews before dropping

[whit0694]

Doing a drop on a large table can be quite slow as Oracle stuffs the whole thing in to its undo log.

A truncate removes all records w/o possibility of undo. It's quite fast. And then the subsequent drop is also fast.

[cdinger]

@whit0694 are you sure this is the case? The version 19 docs say that dropped materialized view aren't undoable and don't hit the recycle bin:

When you drop a materialized view, Oracle Database does not place it in the recycle bin. Therefore, you cannot subsequently either purge or undrop the materialized view.

I'm curious about what you're seeing. Do your materialized view have mview logs?

[whit0694]

Hmm. Let's skip it then!