OTN Tour of Latin America 2015 : The Journey Begins – Buenos Aires Airport

ace-directorThe flight from Paris to Buenos Aires was long, but relatively uneventful. One little patch of turbulence, then plain sailing.

For the main meal they didn’t have me down as vegetarian. I don’t know why I bother ordering special meals because the vast majority of the times I don’t get them. Interestingly, they did have a vegetarian breakfast for me, probably fixed one up after the dinner issue, but they gave it to the lady (more...)

How to define a PK using Data Modeler?

Originally posted on HeliFromFinland:
Primary Key (PK) identifies uniquely each row in a table. There can never be two tuples with same values in PK. There are two ways of defining a PK: a natural key or a surrogate key. I would say that if you can find a natural key that is always better.…

New NetBeans Books in 2015

Each year brings new books about NetBeans. That's a given, at this point in time. This year's crop is particularly fine, with Apress, Packt, and Murach all bringing out completely new titles around NetBeans. Jump in, the water's fine, there's something for everyone:

And maybe there are others that I've left out here? Let me know! We'd love to promote any new book that is either about NetBeans or that uses or refers (more...)

OTN Tour of Latin America 2015 : The Journey Begins – CDG Airport

ace-directorI’ve been in Charles de Gaulle airport for about three hours now. Only another four to go… :)

I tried to record another technical video, but you can hear kids in the background. Now the timings are sorted, it should be pretty quick to re-record when I get to a hotel, so that’s good I guess. I’m not sure I can face doing another one today.

My YouTube channel is on 199 subscribers. About to ding (more...)

Upgrade workshop this week in Denver

Denver workshop

I am looking forward to my trip to the Denver area this week, including an upgrade workshop at the Oracle office in the tech center area. We have a good registration list so far but there is still room! If you would like to attend, just register at events.oracle.com

Combining Spark Streaming and Data Frames for Near-Real Time Log Analysis & Enrichment

A few months ago I posted an article on the blog around using Apache Spark to analyse activity on our website, using Spark to join the site activity to some reference tables for some one-off analysis. In this article I’ll be taking an initial look at Spark Streaming, a component within the overall Spark platform that allows you to ingest and process data in near real-time whilst keeping the same overall code-based as your (more...)

OTN Tour of Latin America 2015 : The Journey Begins

ace-directorI’m about to board a flight to Paris, where I will wait for 7 hours before starting my 14 hour flight to Montevideo, Uruguay. I think you can probably guess how I’m feeling at this moment…

Why won’t someone hurry up and invent a teleport device?

I will probably put out little posts like this along the way, just so friends and family know what is going on. It’s wrong to wish your life away, (more...)

Invoking REST Service from Oracle ACM Java Activity by Andrejus Baranovskis

clip_image002In this post I will show you, how to call REST service from ACM Java activity class method. This could be useful in the situations, when you would like to have programmatic ACM activity integrated with REST service data. We could access ACM payload data from within the method overriden in the class implementing Case Activity Callback.

ACM activity implemented on top of Java class, contains the same properties and configuration as the regular one. (more...)

Load More Scroll Policy for ADF 12c Table and Range Paging by Andrejus Baranovskis

clip_image002

There is a new scroll policy for the table component in ADF 12c. This new policy is called - load more. I think it gives good potential, it allows to reduce access load on heavy tables. In ADF 11g we are implementing similar approach with RowCountThreshold = -1 setting, this is preventing full scroll at once (How To Disable SELECT COUNT Execution for ADF Table Rendering). Load more is better, it integrates with (more...)

FASTSYNC Redo Transport for Data Guard in #Oracle 12c

FASTSYNC is a new LogXptMode for Data Guard in 12c. It enables Maximum Availability protection mode at larger distances with less performance impact than LogXptMode SYNC has had before. The old SYNC behavior looks like this:

LogXptMode=SYNC

LogXptMode=SYNC

The point is that we need to wait for two acknowledgements by RFS (got it & wrote it) before we can write the redo entry locally and get the transaction committed. This may slow down the speed of (more...)

NYOUG July 2015 Session on Tracing and Profiling

Many thanks to all those came to attend my two sessions "The Art and Craft of Tracing" and "Profiling for Performance in PL/SQL" at New York Oracle Users Group meeting on July 29th. Here you can download the presentations as well as the scripts I used for the demos.


Presentation: Tracing
Presentation: Profiling
Scripts for both Tracing and Profiling sessions.(ZIP file)


As always, your feedback will be highly appreciated. Do write to me about (more...)

Internet of Things (IoT) – What is your plan?

Proliferation of connected devices and ever-growing data is driving some very interesting Internet of Things (IoT) use cases and challenges.

Check out some very interesting facts. What is your plan?

Click on the interactive image below...

What is your Plan? 

The Internet of Things – Managing the Complexity in Cloud

By 2020 there will be 50 Billion connected devices in the world generating more data than every thought possible.

Watch this video to understand how IoT is changing the world and your business models. What is your plan?

Check out Oracle's IoT offering in Cloud - IoT Cloud

Can EPM Go Fully Cloud?


By Guest Blogger Muthu Ranganathan, Director, EPM Product Management at Oracle

There is no denying the fact that the world is moving towards “the cloud”, and CFOs and CIOs have come to the point where they can’t avoid recognizing the many benefits of the cloud. While finance took more time than their peers in Human Resources or Sales to go to the cloud, recent trends indicate that more CFOs are open to “getting on the (more...)

Submit your abstract for Oracle Spatial & BIWA Summit ’16!

For the second year, Oracle Spatial Summit will once again be part of BIWA Summit at Oracle HQ in January 2016!

We want to hear your story -- and encourage you to submit your proposal soon. Proposals will be accepted through  November 2.   Don't wait, though -- we're accepting submissions on a rolling basis.  The sooner you submit, the better your chances.

We're looking for innovative Oracle Spatial and Graph, and MapViewer use (more...)

The datapump detective…



As some of you may have read we're migrating an old 9i system to 12c and are having to make use of streams to make up for the fact that CDC has been removed in 12c. This had all been going well and we were quite happily replicating from 12.1.0.1 to 10.2.0.4 (where we built a downstream CDC - it's not the cleanest solution but it gets the job (more...)

Friday Spotlight: The July 2015 Oracle Virtualization Newsletter is Now Available

The July 2015 edition of the Oracle Virtualization Newsletter is now available! In this issue, read about:

  • Oracle VM VirtualBox 5.0
  • Oracle Private Cloud Appliance 2.0.5
  • Oracle Solaris 11.3 beta with Oracle VM for SPARC
  • Oracle OpenStack SlideShare site
  • And much more!

You can read the latest edition online right now, or subscribe to get it automatically sent to your inbox. Enjoy!

-Chris 

What’s In A (User) Name?


"So each one of you agrees to disagree with whatever the other one agrees with,
but if you both disagree with the same thing, aren't you really in agreement?"
- Norton Juster, The Phantom Tollbooth

Recently a blog post caught my attention, primarily because it was talking about primary keys in a database. In the post an interesting situatino was presented, one involving using a username column as the key. The point was made (more...)

Servlet 4 Early Draft Needs You!

| Jul 31, 2015

HTTP/2 support via Servlet 4 is one of the most significant changes coming in Java EE 8. The Servlet 4 specification is now gearing up for it's first early draft. The intent is to publish the early draft by JavaOne 2015. If you have an interest in Servlet 4, this is a perfect time to get involved in helping shape the draft. The two items specification lead Ed Burns has in his mind at the (more...)

Oracle Mobile Cloud Service First Hands-On Experience

Thanks to SOA Community and Jurgen Kress, I had a chance to play with Oracle MCS (Mobile Cloud Service). This new Oracle product is promoted with full force by Oracle PM team, there is dedicated Youtube channel with videos to watch and learn - Oracle Mobile Platform. Mobile Cloud Service offers mobile enterprise repository to organize and support your mobile development. Mobile backend services, security, connectors, storage and etc. can be defined and managed in (more...)