Our location is relentlessly tracked by our mobile devices. Our online transactions – both business and social – are recorded and stored in the cloud. And reams of biometric data will soon be collected by wearables. Mining this contextual data offers a significant opportunity to enhance the state of human computer interaction. But this begs the question: what exactly is ‘context’ ?
Consider the following sentence:
“As Michael was walking, he observed a bat lying on the ground. (more...)
This year I’ll be presenting at Oracle Open World with many of the best in the industry. If you are going to be in the San Francisco area between September 28 thru October 2 2014, stop by and check out the conference. Registration information can be found here.
The topics which I’ll be presenting or assisting with this year are:
OTN RAC Attack – Sunday, September 28, 2014 – 9 am – 3 pm PST (more...)
I just got back to my hotel room after attending the first of a two day Cognitive Computing Forum, a conference running in parallel to the Semantic Technology (SemTech) Business Conference and the NoSQL Conference here in San Jose. Although the forum attracts less attendees and has only a single track, I cannot remember attending a symposium where so many stimulating ideas and projects were presented.
What is cognitive computing? It refers to computational systems that (more...)
Low tech attachment of a 808 keychain camera to the underside of a Syma X1 quadcopter.
Editor’s note: Hey a new author! Here’s the first one, of many I hope, from Bill Kraus, who joined us back in February. Enjoy.
One of the best aspects of working in the emerging technologies team here in Oracle’s UX Apps group is that we have the opportunity to ‘play’ with new technology. This isn’t just idle dawdling, but rather play with a (more...)
Recently I was declared, for want of a better word, an Oracle ACE. I was nominated by someone I respect and admire; just the nomination itself was enough, really, to make my day. When I received notification that I had been selected I was truly surprised. I immediately thanked my nominator, who told me:
"Still, it is just a nomination form, and you did all the work that
made it so impressive. Congratulations!"
The OTN network is designed to help Oracle users with community generated resources. Every year the OTN team organizes worldwide tours that allow local users to learn from subject matter experts in all things Oracle. For the past few years the UX team has been participating in the OTN Latin America Tour as well as other regions. This year I was happy to accept their invitation to deliver the opening keynote for the Mexico City tour stop.
Editor’s note: I meant to blog about this today, but looks like my colleagues over at VoX have beat me to it. So, rather than try to do a better job, read do any work at all, I’ll just repost it. Free content w00t!
Although I no longer carry an iOS device, I’ve seen Voice demoed many times in the past. Projects like Voice and Simplified UI are what drew me to Applications User Experience, and it’s (more...)
Recently I’ve noticed the occasional thread in Oracle newsgroups and lists asking about hugepages support in Linux, including ‘best practices’ for hugepages configuration. This information is out on that ‘world-wide web’ in various places; I’d rather put a lot of that information in this article to provide an easier way to get to it. I’ll cover what hugepages are, what they do, what they can’t do and how best to allocate them for your particular (more...)
Exadata is a powerful system, able to provide exceptional performance. Much of this peformance is due to Smart Scans, Exadata’s mechanism for shifting the workload to the storage cells and having them filter and reduce the amount of data the database servers must process. Not every Smart Scan that starts ends up completing, though. Oracle may decide that a different path, one that doesn’t include a Smart Scan, may be more efficient. Certain conditions must (more...)
I have installed SQL Developer (with JDK) on Windows many times before, and almost all the time I receive the system error bellow when trying to execute it by the first time. Due to this, I decided to publish the…
Performance is one of the big watchwords in tht IT industry; nowhere is it more often used than in the database arena, and it’s usually not a good sign. End users know nothing, really, of the inner workings of the database yet they are the first to point the ‘finger of blame’ at the database when the processing speed slows or queries take longer than they would like to return data. [For end users performance (more...)
Chained and migrated rows in an Oracle database can seriously impact I/O performance, especially with Exadata. In a ‘normal’ Oracle database [read that as "non-Exadata, non-ASM" database] chained rows, in small numbers where that usually means 1% or less of the total rows in a table, are generally a nuisance. The performance hit they generate in such a situation is small and may not even be noticed by the end users. Add more chained/migrated rows (more...)
At March I will be presenting my very successful seminar “Mastering Backup and Recovery” in some countries of Latin America for the very first time. Thank you Panama, Chile and Brazil OUGs for inviting me to your amazing countries! Please, use the following links for registration and also to find more information about the seminar: […]
Hi All, On February 4, 2014 at 9:30 am PT I will be talking on the next OTN Virtual Developer Day about Oracle VM and Oracle Database. Come and discover the answers for the following questions: Does an Oracle Database perform well on a virtualized environment? What virtualization technology is more stable and […]
Some time ago, I received the request to migrate some Windows 2008 Servers to my Oracle VM farm and after complete the P2V migration the newly create VM would not start. It would crash on boot with blue screen and error: STOP: 0x0000007B (0xXXXXXXXX,0xXXXXXXXX,0×00000000,0×00000000) This issue is related to the storage drivers needed for the guest […]
I hit the following problem with a 18.104.22.168 database running on Windows 2003 this morning (info pulled from the alert log). The database had failed to restart after a client’s cold backup process ALTER DATABASE MOUNT Wed Jan 15 22:32:08 2014 ORA-09341: scumnt: unable to mount database OSD-04400: unable to acquire internal semaphore for process