12c

Kerry Osborne's picture

Hotsos Symposium 2013

Just a quick note to let you know I’ll be speaking at the Hotsos Symposium in March in Dallas. I’ve attended every year for the past 6 or 7 years and spoken at several of them. It has consistently been the best performance oriented Oracle conference I’ve attended. This year will be no different with the likes of Maria Colgan, Karen Morton, Tom Kyte, Tim Gorman, Cary Millsap, Frits Hoogland, Gwen Shapira, Alex Gorbachev, Kyle Haily, Carlos Sierra, Kellyn Pot’Vin, Mark Farnham, Toon Koppelaars, Andy Zitelli, Neil Gunther, Stephan Haisley, Marco Gralike, Steven Feuerstein and a host of others. Looks like several of the speakers (including me) plan to be talking about new performance oriented features of the soon to be released Oracle 12c database, so it should be very interesting. One of the best things about the conference is the chance to talk to people (including the speakers) at the breaks.

Tom Kyte in Moscow – 2

On December 11th Tom Kyte performed “AskTom in Moscow” for the second time (first time was almost three years ago in February 2010). I was there and enjoyed presentations, tweeted a lot about the content and in the end I’ve won a signed copy of the Expert Oracle Database Architecture (2nd edition, in Russian)!

The start

A glass for questions. It was full in the end of the day

oraclebase's picture

Oracle Database File System (DBFS) in Oracle 12c : WebDav Support?

On a yoga course a teacher said to the group, “Don’t try to remember everything I say. Some things will come back to haunt you later.”

So I was reviewing a couple of chapters of Marcelle Kratochvil‘s multimedia book and she mentioned DBFS. That jogged a memory of the DBFS demo stand at OOW12, where the guy told me that 12c will (probably) have WebDAV support for DBFS.

DBFS is a neat feature, but it’s a little frustrating if you are using any OS other than Linux because you are forced to use a client utility with limited functionality, rather than accessing it like a regular file system as you can on Linux using the FUSE project. If this WebDAV functionality does get released in 12c it will make it accessible from pretty much any OS or browser.

Jonathan Lewis's picture

Pluggable 12c

For anyone looking for information on 12c, there are several posts about OpenWorld at the dbi Services blog (see links at right). In particular there’s a summary post about the “pluggable database” describing how you could plug a database into a “container” database, clone it inside the container database, then unplug it and put it somewhere else.

When I heard about the feature, it crossed my mind that there were two “obvious” targets for this technology that Oracle had in mind – in no particular order:

Jonathan Lewis's picture

Indexing 12c

Another little detail that Hermann Baer mentioned in his presentation yesterday was the ability to create multiple indexes with the same column definition – something which currently gets you Oracle error “ORA-01408: such column list already indexed.” 

No details, and there’s always the “safe harbour” slide of course – the one which says seomthing about the presentation being only an indication of current thinking and nothing is guaranteed to appear.

Jonathan Lewis's picture

Partitioning 12c

Most useful presentation of OOW so far, from Hermann Baer of Oracle on improvements in partitioning features in 12c – and there are lots of useful ones, including:

Online move of a partition – so easy to compress a partition when it has reached its final “read-only” state

multiple partition maintenance in one operation – e.g. merge 3 monthly partitions into one quarterly partition, or split one partition into 24 (think about “how do I partition a non-partitioned table”, and 12c has just made it easier and quicker – exchange it into an empty partitioned table, then do one massive split).

partial indexing – define which partitions of a partitioned table should be included in the indexes you create on the table – and the optimizer also knows that different partitions need different plans (an enhancement of “table expansion”.

oraclebase's picture

Enterprise Manager Cloud Control 12c Release 2 Installation…

I did an EM Cloud Control 12cR2 installation at work yesterday. The database repository was 11.2.0.3 on HP-UX and the middle tier was installed on RHEL 5.8. The installation was pretty much the same as the 12cR1 version. Over the next few days I’ll be testing out some of the features to decide if we can move across to it permanently.

Today I did two run throughs of single server installations on Oracle Linux 5.8 and 6.3. There are a couple of minor differences, but nothing to worry about. You can see what I did here:

The installations are a little small, so they are not too fast, but it’s good enough to test things out.

Cheers

Tim…

oraclebase's picture

What happens when 12c Cloud Control runs out of disk space?

Question: What happens when 12c Cloud Control runs out of disk space?

Answer: It doesn’t work very well. :)

I have a 12c Cloud Control installation on an Oracle Linux 6.1 VM and I was pushing an agent to both nodes of an 11.2.0.3 RAC, also on OL6.1 VMs. The agent installation seemed to go fine and the agent upload to CC was fine, but when I tried to discover the database on the nodes it went a bit loopy. After a little messing about I noticed my disk was maxed out on the 12c CC server. Bummer!

So I turned off the VM, added another virtual disk, turned it back on and added the new disk to the existing volume. Bob’s your uncle!

oraclebase's picture

Oracle Database on Oracle Linux 6.1…

I mentioned the day before Open World I put a Virtual RAC on Oracle Linux 6.1 article live. Although the procedure was complete, some of the screen shots were from an old article as I didn’t have time to redo them before my flight. :) I’ve just run through the procedure again and taken new screen shots. As a result, I’ve allowed the article to display on the front page of the website, which is why you will see it listed as a new article there.

This kinda rounds out the whole Oracle on 6.1 stuff as there has been a single instance installation guide out for ages and more recently the Cloud Control installation, which references it.

Remember, it’s still not certified yet, but it’s coming.

Cheers

Tim…




Niall Litchfield's picture

First Impressions of EM12C

One of the major announcements at Oracle Open World last week was the launch of Oracle Enterprise Manager 12c, though I’m going to refer to the product as em for the rest of this blog. EM is a product that I both love and which completely infuriates me from time to time. Its worth understanding [...]

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