We bumped a Linux 18.104.22.168 database up to a 12 gigabyte SGA and the login time went up to about 2.5 seconds. Then a Linux admin configured 12 gigabytes of HugePages to fit the SGA and login time went down to .13 seconds. Here is how I tested the login time. E.sql just has the exit command in it so this logs in as SYSDBA and immediately exits:
$ time sqlplus / (more...)
This year’s Oracle Open World was an exciting experience for AuraPlayer, with many flocking to our booth for live demos and attending Mia’s sessions with clients like Rogers Group Inc. We were sad that many were unable to attend the conference, so we are bringing Oracle Open World to you in our October webinar series!
In the first installment of this series, “Digital Transformation: From Legacy to Enterprise Mobility,” we will demonstrate step-by-step how best (more...)
I learnt a lot from the entire Oracle Technology Network and I still do. One of the best features of OTN these days, IMHO, is the ability to download prebuilt Virtual Machines. Since I am a developer and not an administrator, I don’t like to be bothered with stuff like how much disk space do I need, how many cores should I use etc. I can just download a Virtual Box image, import it and (more...)
The aim of this post is to summarize the knowledge about the 12.1 and 12.2 adaptive query optimizer configuration that, as far as I know, is spread over a number of (too many) different sources.
First of all, let’s shortly review which adaptive query optimization features exist:
- Adaptive plans, which are only available in Enterprise Edition, include adaptive join methods (the ability to switch the join method from a nested
loops to a (more...)
This post provides a fairly detailed introduction to registering and creating a trial instance of Oracle Messaging Cloud Service. We have written this as in our book Introducing Oracle Integration Cloud Service (ICS) we use Oracle Messaging Cloud Service(OMCS) in chapter 8 to illustrate message based integration outside of ICS. Whist we describe the process for […]
As many conferences evolve over the years, the number of sessions on offer can easily be overwhelming. I have overheard many conference attendees wrestling with their choices for what to see and which sessions to attend.
For DOAG 2016 I have a short overview with my picks and with one or two tip-sessions. I hope this helps, though it is just my personal preference of course…
Please note that this post is based on the (more...)
Just a stupid error. Posting it so that someone else googling for the same thing can get a clue.
An ASM instance running with default parameters (no pfile, no spfile). Updated spfile for the instance with asmcmd spset command and bounced crs. After reboot also, it still wasn’t using spfile. Got puzzled and checked GPnP settings again. All looked good. Then in alert log came across this
ERROR: SPFile in diskgroup <> does not match (more...)
(Disclamer: any opinions expressed here are fully my own and not representative of my employer)
photo by alvaroprieto (cc 2.0)
Super excited to be working at Amazon on my passion which is performance data visualization and database monitoring. Suffice it to say this is the most excited I’ve been about work in my career and I’ve had ample opportunity to work on database performance in the past such as at (more...)
Just a short post to announce that I’ll be presenting an User Group Forum session. Thanks ODTUG!
“In this session learn about the new Java-based command line interface that takes advantage of Oracle SQL Developer’s scripting engine. It delivers a modern command line interface that is backward compatible with SQL*Plus but also introduces new commands and features that have been missing for a long (more...)
In Oracle 11G, DG Broker needed to be told whether the standby database was physical or logical. The command to add database in 11G was something like this:
ADD DATABASE <DB Unique Name> AS CONNECT IDENTIFIER is <TNS Descriptor>
MAINTAINED AS [PHYSICAL|LOGICAL];
Oracle 12c is definitely smarter and can figure it out on its own. The “ADD DATABASE” syntax is simpler:
DGMGRL for 64-bit Windows: Version 22.214.171.124.0 – 64bit Production
Synthetic full backup is a method for combining incremental backup into a full backup. It is not a new thing, many backup utilities can do that with file system backups. It is also well described:
However, there is only one backup suite that can do that with Oracle RDBMS: Commvault 11.
How is it done? Well, Commvault is a very well documented tool, the documentation is here:
Having take a new job at Amazon just two weeks ago and moving to Seattle (!) I didn’t have the time nor was it practical to set up Oaktable World this year. Luckily Kelly Pot’vin has taken over the mantel !
Get the info straight from the horses mouth at her blog.
The following content has been graciously supplied from Kellyn’s blog:
Oak Table World is FREE to the PUBLIC! We don’t require an (more...)
Tuesday, September 20, 2016
5:00 PM to 7:00 PM
138 Minna Street, San Francisco, CA (map)
Oracle OpenWorld is a time for us to join together and learn all about what Oracle has to offer. But let’s get real, it’s always nice to get free beer. To help show us a good time here in San Francisco, our good friends in the Oracle ADF and Database developer group are planning a Oracle Developers (more...)
update sqlfail set last_posting_date = date'2016-08-18';
It’s been a while since I’ve published here. You see, I’ve been kind of busy.
Back in January 2015 I was lucky enough to join Oracle as part of their Developer Advocate team. My focus is SQL.
You see I love working with SQL. And I love helping others. So joining the Developer Advocates was a great chance to combine these passions :)
Which leads some to ask:
Why is your site (more...)
I’ve been really busy last few months – except spending a lot of time on M25 I’ve been doing a lot of Exadata installations and consolidations. I haven’t posted for some time now but the good news is that I got many drafts and presentations ideas.
This is a quick post about an issue I had recently. I had to integrate AD authentication over Kerberos on the compute nodes (blog post to follow) but had (more...)
On the 28th of July, I presented this topic at Kscope16. It was a great conference and if you ever have the chance to visit, definitely do so.
We are excited to announce AuraPlayer has been shortlisted for UKOUG’s 2016/2017
Digital Transformation Partner of the Year! This award provides recognition to Oracle Partners for their contributions to Oracle users by promoting digital transformation.
It has been such an incredible year watching our customer’s applications change from gray screens nailed onto a desktop to cutting-edge mobile applications. Digital transformations have been occurring in all industries including field service, public-sector and retail. We are so (more...)
My kitchen has a very nice range hood over the cooktop. It has a powerful fan and beautiful brushed steel finish. And it has a user experience like most IT systems: Lousy.
Let’s think about what a range hood does. It has two main functions:
- Start the fan to extract grease and fumes
- Turn on the light over the cooktop
Because of the shape of a range hood, the buttons to operate it are typically (more...)