Fallback Strategy: Partial Offline Backup

Oh, I think it took us years to get rid of recommendations in MOS notes saying before this or that change you must take an offline backup. These recommendations dated back to times where not almost everybody was using RMAN for online backups. But the times have changed. Still, there are situations where the “Offline Backup” word can be mentioned. And in this blog post I will describe a Fallback Strategy: Partial Offline Backup. Usage Scenario This method will only protect you against failure during an upgrade. First of all, Offline Backup sounds really brutal and old-fashioned. But this method…

Upgrade and Migration Office Hours on April 19, 2018

It’s time for the next Office Hours session with the Upgrade Development Team. The Upgrade and Migration Office Hours on April 19, 2018 features the topic “Fallback Strategies“. Roy will prepare a short slide intro. And afterwards we’ll happily take your questions. What are “Office Hours”? This is a new interactive format we really like. Several groups in Oracle schedule Office Hours sessions. Roy and I held our first Office Hours session on February 21, 2018 for a full hour trying to answer your questions regarding database upgrades and migrations live and directly. How do you sign up? Please access…

Fallback Strategy: Flashback Pluggable Database

Since Oracle Database 12.2 an important feature works now for pluggable databases as a Fallback Strategy: Flashback Pluggable Database in Oracle 12.2. This was missing in Oracle Database 12.1. Actually I missed this feature a lot as I use “Flashback” almost everyday. And you could only rewind the entire deployment with a FLASHBACK DATABASE command. Fallback Strategy: Flashback Pluggable Database Actually having the possibility to flashback a pluggable database without effecting the other PDBs is really important. Did you ever want to try out what happens if you TRUNCATE TABLE SYS.PROPS$? Give it a try – but set a Guaranteed…