Clik here to view.
11.2.0.4 support? Don’t worry until 2017
Customers reluctant to go to 12c before 12.2, in addition to Standard Edition contract changes when going to 12c, has lead to lot of upgrades to 11.2.0.4 but what about support? Don’t worry. It’s...
View ArticleClik here to view.
You are in Standard Edition, when to worry?
A previous blog post explaining what happens for those in ‘Standard Edition One’ had a “don’t worry” in the title because you can upgrade to SE2 with minimal additional cost – except when you have to...
View ArticleClik here to view.
Oracle Cloud Service – my first outage
We experienced the first planned outage this week-end, so let’s see how it is notified and what happens. EMEA Commercial 2 – Amsterdam Outage notification before: subject: Announcement: Upcoming...
View ArticleSQL> alter database switchover to …
In 12c the manual switchover to physical standby requires only one command (ALTER DATABASE SWITCHOVER) instead of two (ALTER DATABASE COMMIT TO SWITCHOVER on each database). We usually recommend to use...
View ArticleClik here to view.
DBA, turkeys and NoSQL hype
We (DBAs) look at this NoSQL hype with a large smile. We know how powerful are SQL databases and we can’t imagine processing data seriously without it. And the technologies that come with NoSQL brings...
View ArticleClik here to view.
OOW15 – Day 1- No fog on Golden Gate brige but Cloud everywhere at Moscone...
Here are the two sides of the Oracle Open World: marketing and community. Of course Oracle organizes that big event for marketing: show the future products and explain how they are better than all...
View ArticleClik here to view.
OOW15 – Day 2- Oracle Database 12cR2 designed for the Cloud
Oracle Database 12.2 will come in 2016 with new features. Here are some features that are planned – of course this can change until release. Pluggable databases Did you worry about the limit of 252 PDB...
View ArticleClik here to view.
OOW15 – Day 3 – thoughts from DemoGrounds about SIZE AUTO
If you are at Oracle Open world, don’t miss the DemoGrounds where you can talk to product managers and developers. It’s a good way to know how and why something is implemented. They also listen to you...
View ArticleOOW15 – Day 4 – you can auto evolve SPM without Tuning Pack
As I said in a previous post: you can’t complain about plan instability if you didn’t give a try at SQL Baselines. I was discussing about that with developer at the DemoGrounds trying to understand why...
View ArticleClik here to view.
OOW15 – Day 5 – Blogger Meetup
You are reading and learning from blogs about oracle technology? I would like to encourage everybody to be a blogger as well. As every year, Pythian and OTN have organized the blogger meetup. This is...
View ArticleClik here to view.
IBM Bluemix Database Cloud Service – My first trial
Remember my first try of Oracle cloud when Larry Ellison announced the Cloud in june? This week at OOW15 Larry Ellison announced that IBM is not a competitor anymore for them, then I checked IBM Cloud:...
View ArticleClik here to view.
Dbvisit replicate allows DDL replication even when source and destination...
I’ve tested a little thing for a customer, and as usual I spool the result into a blog post in case it helps others. Not all replication software – at least in their current version – can manage both...
View ArticleClik here to view.
RMAN channels in RAC
When you want to minimize the backup or restore duration, you can parallelize RMAN operations by allocating multiple channels. If you are in cluster, you can open channels from several nodes. Let’s see...
View ArticleClik here to view.
AWR when ASH CPU >> DB CPU
I’ll present How to read an AWR report next month at UKOUG TECH15 and the first recommendation after checking Average Active Sessions is to verify that we are not in a CPU starvation situation. Here is...
View Articleset “_rowsets_enabled”=false
This 12c ‘wrong results’ issue is thoroughly described by Mike Dietrich (https://blogs.oracle.com/UPGRADE/entry/switch_off_rowsets_enabled_in) and I’ve nothing to add. This blog post is there to be...
View ArticleClik here to view.
Interested in a deep dive of logical replication?
It’s next week at #DOAG2015 Interested in a deep dive of logical replication? Let’s try it. The best way to learn is to try it and this is the idea of #RepAttack where you can quickly install a...
View ArticleClik here to view.
Cloud Control 12c on your laptop
Today every DBA should have a lab on his laptop. This is where I reproduce most of cases before opening a SR, or to investigate something, to demo, to learn new features, or to prepare an OCM exam....
View ArticleIn-Memory synchronous population with hidden parameters
By default, In-Memory Column Store population is done in background, asynchronously. There are two hidden parameters that can change this behaviour, let’s see how it works. Note that this is only good...
View ArticleClik here to view.
Real life audience vs. Twitter audience
I was looking at twitter analytics showing my top tweets in November and that puzzled me because tweets with the most ‘impressions’ and ‘engagments’ are related to events that had low audience in real....
View ArticleClik here to view.
Trying AppDynamix – monitoring application from user to database
I like to come upon new monitoring software that help to go quickly from user response time to root cause. And I love applications that can be installed easily and at which I can give a try without...
View Article