There is a ton of good stuff in the documentation. I have to give a standing ovation for the folks that write them. Yes, sometimes there are errors, or an old section is apparently skipped over during a version upgrade. But by and large, it is good stuff!
Just today I was reading about incremental backups. And I came across this little feature I had not realized before:
To reduce backup sizes for
NOARCHIVELOGdatabases. Instead of making a whole database backup every time, you can make incremental backups.
Wow, that is quite handy. So if you are ever tempted to put a DEV database in archivelog mode just to get point-in-time recovery, you can go with incremental backups instead. How cool is that?
Of course, there are a lot of other handy ramifications of using incremental backups (ie, a precurssor to snapshot standby's, you can convert your physical standby to a reporting database and then convert it back at the end of the day).