Database Administration (MOSC)

MOSC Banner

Undocumented Oracle 12cr2 feature?

edited Sep 19, 2020 5:01AM in Database Administration (MOSC) 2 commentsAnswered

When I was browsing the web for some oracle related information I came across this link:

https://blog.pythian.com/redo-volume-optimization-in-12c-r2/

In this link it was stated that there was a new feature in Oracle 12cr2 that reduce the redo log volume by omitting before/after image for columns that weren't affected in the UPDATE dml.  I searched metalink and also read the new feature for Oracle 12cr2 official documentation but can't find any reference to this.  Does anyone know where I can find the official documentation from Oracle explaining this new(hidden) feature and how it is triggered?

Howdy, Stranger!

Log In

To view full details, sign in to My Oracle Support Community.

Register

Don't have a My Oracle Support Community account? Click here to get started.

Category Leaderboard

Top contributors this month

Instructions for posting

×

1. Select a discussion category from the picklist.


2. Enter a title that clearly identifies the subject of your question.


3. In the body, insert detailed information, including Oracle product and version.


Please abide by the Oracle Community guidelines and refrain from posting any customer or personally identifiable information (PI/CI).


Cloud / Fusion customers - Our Cloud community has moved! Please go to Cloud Customer Connect .


New to My Oracle Support Community? Visit our Welcome Center

MOSC Help Center