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Oracle Database, Oracle 10g, Oracle 11g, Oracle XE, Oracle RAC, Oracle Instant Client, Oracle Data Guard and Oracle Exadata resources, news, and support articles.

play with vncserver... when it showed nothing

I often use "ssvnc" to connect my servers to install or do something about X. Anyway, I must to start VNC before by using "vncserver".

[surachart@oralearning ~]$ vncserver

New 'oralearning:1 (surachart)' desktop is oralearning:1

Starting applications specified in /home/surachart/.vnc/xstartup
Log file is /home/surachart/.vnc/oralearning:1.log

[surachart@oralearning ~]$

I ended up find nothing when I connected VNC as below picture.

May 17, 2013 2:11am

Using Apex with IIS Express

The Thoth Gateway is a gateway written in C# and ASP.NET that allows you to run PL/SQL web applications (including Oracle Application Express) on Microsoft's Internet Information Server (IIS). You can read more about the gateway here. It is an alternative to Apache/mod_plsql and the Java-based Apex Listener.

May 17, 2013 1:35am

Linux large pages and non-uniform memory distribution

In my last post about large pages in 11.2.0.3 I promised a little more background information on how large pages and NUMA are related.

Background and some history about processor architecture

May 17, 2013 1:05am

APEX Easter fun

This isn't really an easter egg, just more of a mild bug that makes you think - hopefully a little more about your own applications.

If you type in "0" in the page navigation bar, it takes you to the typical global page / page zero for desktop.
Instead of displaying page processing and shared components, it displays application level components - items, process, computations; and an "About" region in the third column, above recently edited pages. Useful stuff...

May 16, 2013 9:00pm

Oracle Dictionary fragmentation

The purpose of this post is mainly to highlight the performance degradation due to dictionary index fragmentation. It is something that oracle not widely announce but it came from the physical structure of the database.

Oracle databases have the AGE and the age mainly came from the number of DDL operations done on the database. The DDL operations modify the dictionary and introduce fragmentation to the indexes and tables.

I have made the small test case

May 16, 2013 1:55pm

Extreme Exadata Expo Speakers Announced

Thanks to everyone that submitted abstracts for our upcoming E4 conference. Unfortunately, there were more quality submissions than we had room for. Maybe next year we should expand the event to 3 days. :) But in the meantime, we have assembled what I believe is an excellent line up of speakers. I’ll just mention a few highlights here:
Tom Kyte will be doing the keynote. Enough said!

May 16, 2013 1:18pm

Northern California Oracle Users Group (NoCOUG) - Spring 2013 Conference

The NoCOUG holds its spring 2013 conference next Wednesday, 22 May 2013, from 8:00 AM to 5:00 PM at The California Center Pleasanton (formerly CarrAmerica Conference Center).

More details and registration are available on their website.

May 16, 2013 12:24pm

Emd_notification.queue_ready

I have seen the DB activity spike occasionally, and when I look at the top sessions I see this running as sys man BEGIN EMD_NOTIFICATION.QUEUE_READY(:1, :2, :3); END; The software using the database doesn't appear to be effected (Users are not complaining during the high activity, and this is a user base were they complain over performance for everything else). When it happens it will kick me out of OEM. I have to restart the web browser and log back in. But if I check the status of dbconsole on the UNIX box is states hat it is still running the entire time.
May 16, 2013 12:21pm

New Theme: Snap

Happy Theme Thursday! Sharing and managing your work online should be easy, and today I’m thrilled to announce a new theme from our friends at The Theme Foundry that helps you do just that!

Snap is a responsive, lightweight, and minimalist theme that makes it easy to feature your projects. Snap’s clean grid based blog layout and configurable page templates also make it incredibly flexible.

May 16, 2013 10:00am

TAF is not working on Rac One Node in case of node failure ? Well it depends

Martin Bach did a good study of Rac One Node capability and especially of what happens with session failover during a database relocation or during a node failure into this blog post.
He showed us that:

May 16, 2013 8:38am
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