Make even more of UKOUG Tech15: APEX 5.0 UI Training – Dec 10th in Birmingham


APEX 5.0 has been released this spring. People who have already spent some time on this new version know this version is packed with new features aimed to make APEX developers even more productive, like the Page Designer.
Another striking new subset of features is aimed at creating better looking user interfaces for your APEX applications in an easy and maintainable way. 
The definition of user interface components in APEX 5.0 is (more...)

Make Tabular Form Conditionally Read-only

If you decide to use an editable tabular form to present a number of records for viewing and/or editing, but you have some users who are only allowed to view the data but not edit it, you’d think you could set the “Readonly” condition on the region; but this condition is only applied to any extra region items you add, not to the editable items within the report itself.

tabular-form-readonly1

Here’s my tabular form, with the records (more...)

ReConnect 2015

It is just a little less than a month until the PeopleSoft ReConnect conference in Rosemont, Illinois. I will be presenting PeopleTools Developer: Tips and Techniques on Thursday from 11:30 AM to 12:20 PM in Grand Ballroom H.

The Hybrid World is Coming

Here’s the video of E4 keynote we delivered together with Kerry Osborne a few weeks ago.

It explains what we see is coming, at a high level, from long time Oracle database professionals’ viewpoint and using database terminology (as the E4 audience is all Oracle users like us).

However, this change is not really about Oracle database world, it’s about a much wider shift in enterprise computing: modern Hadoop data lakes and clouds are here to stay. They are already taking over many workloads traditionally executed on (more...)

IoT Hackathon Part II : Overview of Grove Pi sensors

This post gives you an Overview of Grove Pi sensors and the fun things that you can do with it. I will add the real content later, but for now we need a placeholder.

IoT Hackathon Part I : Setting up your Raspberry Pi

This post describes how you can setup your Raspberry Pi in order to start working with it. I will add the real content later, but for now we need a placeholder.

(via https://www.youtube.com/watch?v=8fCMn1R8qcI)



(via https://www.youtube.com/watch?v=8fCMn1R8qcI)

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12c: Database Backups Using ACFS Snapshots
ASM disk mapping to linux partition 
ORA-15040: diskgroup is incomplete
Oracle Automatic Storage Management Filter Driver (Oracle ASMFD)
Oracle Multitenant: Convert Single Instance PDB to RAC Plugging It Into  A RAC CDB
Troubleshooting ASM Proxy instance startup

 



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Investigating the full table direct path / buffered decision.

A lot of blogposts and other internet publications have been written on the full segment scan behaviour of a serial process starting from Oracle version 11gR2. This behaviour is the Oracle engine making a decision between scanning the blocks of a segment into the Oracle buffercache or scanning these blocks into the process’ private process global area (PGA). This decision is even more important on the Exadata platform, because the Oracle engine must have made (more...)

Still no news from the security front…

This week I was doing research for one of our internal knowledge session when I stumbled across an interesting piece of history. I was tracing the history of computer security when I found an interview from Wired from the first people who implemented passwords as a security measure. They interviewed technicians like Fred Schneider and Fernando Corbató who worked at MIT back in the 60’s. http://www.wired.com/2012/01/computer-password/ The article centers on a system (CTSS) (more...)

Deployment plan of resource adapter missing

Today I was struggling with my OSB domain. Last week I switched laptops and did a new OSB installation on my new laptop and thought it was smart to just zip the OSB Domain from my old laptop to unzip it on my new laptop.

What I forgot was to copy the adapter plan.xml from the oracle home on my old laptop. So the resource adapter did not start correctly. It was even not (more...)

Fix completion insight in JDeveloper 12.1.3: show return type again

Hi!

If you work with JDeveloper 12.1.3 you may missing the return type of methods in completion insight.

For an example you hit CTRL-SPACE after following code

completion_insigt_return_type_wrong

you see that at the start and at the end of the popup the available method names and parameter. If you have worked before with older versions of JDeveloper, you know that there is shown the return type of the method at the end. What a loose of (more...)

Quiz Time. Why Do Deletes Cause An Index To Grow ? (Solution)

OK, time to reveal how a couple of simple deletes can cause an index to double in size. If we go back and look at the tree dump before the delete operation: —– begin tree dump branch: 0x180050b 25167115 (0: nrow: 19, level: 1) leaf: 0x180050c 25167116 (-1: row:540.540 avs:4) leaf: 0x180050d 25167117 (0: row:533.533 […]

OTech Magazine Summer 2015 Issue #8 Released!

Independent Oracle Technology Magazine OTech Magazine Summer 2015 Issue Released. Second part of my Oracle Database In-Memory article series published in this issue.



You can read my article here 

I want thank to all author for all efforts. My special thanks to Douwe!


Regards
Mahir M. Quluzade


Auditing Enhancements (Audit Policies and Unified Audit Trail) in Oracle Database 12c

security_image1_smallLittle over a year ago I was at the BGOUG Spring Conference and I watched a session by Maja Veselica about auditing in Oracle Database 12c. At the time I noted that I really needed to take a look at this new functionality, as is was quite different to what had come before. Fast forward a year and I’ve finally got around to doing just that. :)

Video Tutorial: XPLAN_ASH Active Session History – Part 6

The next part of the video tutorial explaining the XPLAN_ASH Active Session History functionality continuing the actual walk-through of the script output.

More parts to follow.

QS15: Measurement with Meaning

Walking into something as a newcomer is always an adventure of reality interacting with expectations. Though I wasn’t quite sure what to expect at the Quantified Self conference, it wasn’t what I expected. But in a good way.

QS15 Twitter robot

Tweet-painting robot at QS15

The conference was structured around three main activities: talks given on the main stage, breakout sessions, which took place at different smaller areas during the talks, and break times, where one might check (more...)

Cardinality Schätzungen für TEMP TABLE TRANSFORMATION

Randolf Geist hat vor einigen Wochen in zwei Artikeln weitere Details zum Verhalten der Cardinality-Schätzungen im Rahmen der TEMP TABLE TRANSFORMATION geliefert - in Ergänzung zu zwei (geringfügig) älteren Artikeln, die ich hier gelegentlich verlinkt habe und in denen vor allem darauf hingewiesen wurde, dass die Transformation nicht kostenbasiert ist, sondern automatisch angewendet wird (sofern die erforderlichen Voraussetzungen erfüllt sind), dass sie zu einer Materialisierung aller Spalten der CTE führt - und nicht nur der tatsächlich (more...)

Retrogaming on an Arduino/OLED "console"

(blogarhythm ~ invaders must die - The Prodigy)
Tiny 128x64 monochrome OLED screens are cheap and easy to come by, and quite popular for adding visual display to a microcontroller project.

My first experiments in driving them with raw SPI commands had me feeling distinctly old school, as the last time remember programming a bitmap screen display was probably about 30 years ago!

So while in a retro mood, what better than to attempt (more...)

Dublin Pride 2015 and Tech

Lots of tech companies out there with representatives at the Dublin Pride 2015 Parade (Airbnb, Dropbox, Google, Twitter and so on).

image

Here’s my contribution: wearable tech naturally (Android Wear on Motorola Moto 360). In Irish.