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March 2017

TimTams, Twelve Two, and tete-a-tete !

What do you do when

  • you’re an Australian,
  • you’re at Oracle Headquarters, 13,000 kms from home
  • you bump into someone whilst grabbing a coffee

Well…naturally, you lure them over with a packet of our famous Australian chocolate biscuits, grab a camera and have a chat !

Maria Colgan and I chew the fat over why you should upgrade to Oracle Database 12c (including Release 2)

Why the DBA is Necessary to the Cloud- Part I

There are a lot of people and companies starting to push the same old myth regarding the death of the database administrator role in companies.  On the Oracle side, it started with release Oracle 7 and now is proposed with the introduction of cloud.  Hopefully my post will help ease the mind of those out there with concerns.

12.2 is Available For Download For Linux And Solaris

The Oracle database 12.2 has been available on the cloud for some time but it has not been available for download so that you can install it on your own servers or virtual Machines. You can download from OTN or....[Read More]

Posted by Pete On 02/03/17 At 09:10 AM

Oracle Database 12c Release 2 is here !

image

Since OpenWorld 2016 when we first saw some of the cool features in Oracle Database 12c Release 2, many IT professionals out there have been exploring the release via our various cloud offerings, but if your organization has not yet embraced the cloud, then March 2017 is a great month for you !  Because you can now download the latest and greatest release of our database from the usual downloads page, and run it on your own servers in your own data centre.

Oracle 12.2 wait event ‘PGA memory operation’

When sifting through a sql_trace file from Oracle version 12.2, I noticed a new wait event: ‘PGA memory operation’:

WAIT #0x7ff225353470: nam='PGA memory operation' ela= 16 p1=131072 p2=0 p3=0 obj#=484 tim=15648003957

The current documentation has no description for it. Let’s see what V$EVENT_NAME says:

SQL> select event#, name, parameter1, parameter2, parameter3, wait_class 
  2  from v$event_name where name = 'PGA memory operation';

EVENT# NAME                                  PARAMETER1 PARAMETER2 PARAMETER3 WAIT_CLASS
------ ------------------------------------- ---------- ---------- ---------- ---------------
   524 PGA memory operation                                                   Other

Well, that doesn’t help…

Clone…err, Cloud Wars

No, this isn’t a title for a future Star Wars movie, but our own future, foreseen by me, (as well as many others) from experience, research and discussions everyday.

TVD$XTAT 4.0 Beta 11

This is just a short note to point out that I finally uploaded under the downloadable files of TOP a new version of TVD$XTAT. To download it click here. Not only I introduced some new features, but I also fixed several bugs.

The detailed change log since Beta 10 is the following:

I don’t know (yet)

Here’s a question that came to mind while reading a recent question on the OTN database forum. It’s a question to which I don’t know the answer and, at present, I don’t really want to bother modelling at present – although if I were on a customer site and this looked like a likely explanation for a performance anomaly it’s the sort of thing I would create a model for.