Getting t1001 in interactive grid PK

Have you been plagued with the issue of getting values like t1001 show up in columns you marked as primary key in your interactive grid? In case you do not feel it is a good interface for your end users you may have found yourself spending quality time with Google looking for clues. I have had a couple of people asking me about this in just the last week. Googling turns up very little and mostly (more...)

Your very own development environment

Everyone should have their own local development environment. No matter if you write Java and that just means IDE and JDG, or if you work with databases. Not having it reduces your learning a lot. I have yet to meet a really sharp database expert who does not have a local personal environment. It also goes the other way around, you can usually guess if a person has it or not.

Yes, you can get (more...)

Highlight ‘current’ card in APEX

Earlier today I posted a solution that required a bit of jQuery to execute after refresh of a report.

Avoiding post-processing is always nice, so here's an example that is resolved during render.

I would like to highlight the 'current' card in this classic report:

Cards Classic Report

The SQL that dynamically defines these cards includes the following column, with some decider over which record is deemed the current selection.
,case when :P17_ITEM = 'SOMETHING'  (more...)

APEX Classic Report as Alerts

I love classic reports.
You can make your data look like anything, out-of-the-box, as previously highlighted by Christina and Carsten.

When you create a classic report, you can select different Report templates via the region attributes. I use the Cards and Alerts a fair bit, allowing me to produce data driven content, instead of whatever I type in the application builder.

This has been the general premise of APEX templates since the beginning. We define (more...)

APEX Upgrade redux

I posted about my APEX upgrade to 19 yesterday, and someone was quick to point out to me that they believed I hadn’t covered all of the steps.

“What if your APEX instance needs to call web services?” they said. “You need to update your Access Control Lists.”

I hadn’t thought of that, so I logged onto one of my other APEX instances that was still at version 18, and checked the (more...)

APEX Web Service Request Limit

Every now and then there's a new setting worth mentioning.

The New Features page included news regarding the logging of
Requests to external web services from inside the database
Firstly, this only appears to log requests coming from within the APEX environment.
Requests from scheduled jobs will not be logged, as of 18.2.

Secondly, moving to the cloud can be ... a learning experience. Since we're now using Social Sign-in, web requests are up. (more...)

Hide Pagination if one page results – Oracle APEX

I love this period of development not long after an APEX upgrade, where I discover all these little improvements that will help us out. Stuff that's not quite noteworthy in the wonderful read that is the new features guide (that's not sarcasm. Read it. Now.)

Recently I made an observation regarding a handy new template option, one that hides pagination if there is only one page of records. I've had a bit of jQuery (more...)

Visualising SQL Analytics Rolling Count with OracleJET in APEX

Back in around 2005, before the time of smart phones, I had some data.

I can't remember what the data was, but I was told that for it to be valid, it should roughly form a bell curve.

Sure, I'm sure I could have aggregated it, exported it to Excel, and plotted it to a graph, but this was 2005. There was no SQL Developer where I could copy & paste the results directly into (more...)

My Kscope19 Sessions

The #Kscope19 session list is out!

I've scored two sessions in the Oracle Application Express (APEX) track.

APEX for Forms Developers

My APEX experience has now surpassed a reasonable run developing Oracle Forms, I think I offer something to help the vast amount of Forms developers make the transition.

Managing Multiple Applications

A lot of my APEX work has involved developing applications in modules of a whole, in part because of steady transition from Forms (more...)

Tomcat with ORDS running APEX behind a reverse proxy

A while ago I posted a guide how to set up nginx as a reverse proxy in front of tomcat to run ORDS and APEX. See the post here.

An open problem was that APEX was still thinking it runs on port 80 with http, while nginx was running https on port 443.

The fix to this is editing tomcats server.xml file and adding proxyPort and scheme (documentation) to the connector:

Restart (more...)

APEX configuration problem – empty stack trace

This post is just here to save someone a few hours debugging one day.

We were trying to launch a new Tomcat instance, but we were facing a strange error.

There was no stack trace, and the debug trace started with
[TE] url-mapping start:
[TE] get /ords/f?p=ABC start:

Turns out we had listed some hostnames in the workspace isolation feature, in preparation for deep linking.

Our new server was not listed.

Caution when using Suppress Change Event on an Interactive Grid Column

There are some, maybe rare, use case when you want to set the "Suppress Change Event" switch of a Dynamic Action to "Yes". Usually that's only necessary when the Dynamic Action is fired On Change and executes a Set Value with the same field as a target. There might be a chain of events leading to this or just one. If you forget to set it you'll end up in an (more...)

APEX Plugin: Execute PL/SQL code and return content to page (updated)

Oracle APEX has a built-in Dynamic Action called "Execute PL/SQL Code" that executes a block of PL/SQL code on the server via an Ajax call (ie does not do a regular submit and reload of the whole page).

But what if you want to do something on the server AND also return some content back to the client? Back in 2012 I released an APEX Dynamic Action plugin called "Execute PL/SQL Code and Return Content" (more...)

Customising APEX Session Expiry

It's nearly 8am, you're holding your favourite morning beverage, and you open yesterdays APEX tab, only to find this:

This is the current default expiry page. I'd like to tart it up.

I've used the following technique for so long, I've forgotten what it used to look like to drive me to this solution. Ultimately, you end up with a similar result, but you really can customise it to behave however you like.

Under Shared (more...)

Authentication – Switch in Session

It's only taken a year, but I've finally checked out the ability to switch authentication schemes at runtime with 18.x. It's mentioned in this 18.1 new features slide deck, and the new features list in the documentation.

Such a frequent request in the forums is to either share authentication between sessions, or dynamically change the authentication scheme - which hasn't been possible until APEX 18.1.

I've set up a sample (more...)

Social Sign-in Authentication Scheme

Recently I was involved in setting up a Social Sign-in Authentication Scheme, so despite the doom & gloom of this post, we are breaking some interesting rock.

I say 'involved', since I had the support of one of the nerdiest nerds in Perth, for all the server tinkering. I just had to paste in some URLs and other config settings within APEX.

He expected every error, and it always seemeed just due process (more...)

APEX 18.x Application Session Sharing

For quite some time I've been crafting multiple applications that, to the end user, appear as one.

This is possible with some Session Sharing attributes in relevant the Authentication Scheme, a feature agnostic to the Scheme Type.

This ultimately means you can set up two different applications that use two different methods of authentication, thereby letting in two different sets of users in the 'same' application - you just need to make some UX decisions.


APEX Survey

As big fan of APEX Packaged Applications I always wanted to have a real life usecase for the Survey Builder.

Finally we got around to set up a survey to get an understanding of the current State of APEX Usage/Development worldwide.

You can take the survey here:

The aim of this survey is to create a report and share with everyone interested. This should help to get a common understanding of (more...)

A dozen things to do with Oracle APEX

For this year's Australian Oracle User Group conference I decided to consolidate some of my favourite things to do with 3 of my favourite APEX features.

I considered this a bit of a 'lazy' decision, as it didn't really require any new research - but I think sometimes that can produce some good content, since I'm consolidating years of experience into a session.

It did give me a little leverage for one of my Kscope19 (more...)

Lazy Loading Menu

I've been using the lazy loading concept demonstrated in Maxime's post quite a lot recently, I'd love to see this as a declarative feature one day.

I also wondered if I could apply this concept to the badge count in the side menu.

Turns out it wasn't that hard, particularly since I already had the jQuery I needed from a previous requirement.

We first need to add a unique class to the link definition, so (more...)