Enhancing the APEX Error Handling Function with Logger

Many, many moons ago, I created an error handling function for Oracle APEX, just like the original sample provided by Patrick Wolf for the 4.1 error handling feature. You'll probably find a strong correlation between the two events.

OK, now what?
We normally see this if an exception was propagated within a PL/SQL Dynamic Action.
In this case I thought it was time for a little upgrade.

I noticed the sample code, now part (more...)

Using apex_item.checkbox2 with multiple identifiers

Normally, in a report you can add a checkbox to select records like this:

select apex_item.checkbox2(1,x.id) as sel
      ,x.mycol
      ,...
from mytable x

And process the selected records using a process like this:

for i in 1..apex_application.g_f01.count loop
  l_id := apex_application.g_f01(i);
  -- ... process ...
end loop;

Since we have set the value of the checkbox to the record ID we can just get that ID from the resulting g_f01 (more...)

Add a “Share Link” to your application

Sometimes my customers need to be able to get a direct link to a record in their APEX application which they can share with others (e.g. to publish it on a website, or send by email to a colleague).

They don’t want people to be able to easily “guess” the link (so it needs to have some degree of randomness and complexity), but it’s not so sensitive that if someone somehow gets the link (more...)

Pseudo Radiogroup in APEX Report

I'd be surprised if you've ever tried to put a radio group in a report, but if you've ever attempted it you might come across a post from Vincent Deelan.

When it comes to checkboxes and radio groups, the nature of HTML haunts us.

So it turns out it's possible to do the same task within a report, and we can build it so we don't even need to submit the page. It really just (more...)

Quick tip: List all interactive reports with email features enabled

I was working on an application in an APEX instance that was not configured for email (and would not be), but a number of interactive reports were allowing users to use the “Subscription” or the “Download as Email” features. If they tried these features, those emails would just go into the APEX mail queue and never go anywhere, so I needed to turn these off.

I listed all the interactive reports that need fixing with (more...)

Quick tip: List all tabular forms

I needed to get a list of all the tabular forms in my application along with which table they were based on. This query did the trick:

select page_id
      ,attribute_02 as data_source
      ,page_name
      ,region_name
      ,attribute_03 as key_column
from   apex_application_page_proc
where  application_id = <my app id>
and    process_type_code = 'MULTI_ROW_UPDATE'
order by 1, 2;

Quick tip: default only for new records

If you have an ordinary Oracle APEX form with the standard Automatic Row Fetch process, and the page has an optional item with a default value, APEX will set the default on new records automatically. However, if the user queries an existing record, Oracle APEX will also fill in a missing value with the default value. This might not be what is desired – if the user clears the value they would expect it will (more...)

Quick PL/SQL, a code generator for PL/SQL based on simple markup

Maybe you've heard about "Quick SQL", a utility (previously a separate application, now part of APEX 18.1 itself) that generates SQL scripts based on a simple markup language. Quick SQL is a real time-saver and allows you to go from idea to prototype to working application in an instant.

Inspired by Quick SQL, I've created a similar utility, called "Quick PL/SQL", that does the same thing, except it generates PL/SQL code (packages (more...)

APEX 18.2 Statement of Direction

I've been thinking recently it's been a while since I remember seeing a revised Statement of Direction, and sure enough I see news of an update for 18.2.

It was back in 2015 that I last made my own conjecture about what each statement means (without the benefit of listening to as many conference sessions) and look at some of the outcomes now!

  • IG - well, I'm still a little late to that party, (more...)

Oracle Forms Migration

This post is one of a series on what I learned while not at Kscope18.

I realise that's a month ago now, but the mind still ponders, and I've had these lined up for a while. Just got busy with a deployment, as you do. Went nice and smooth though, APEX sure does make staggered deployments easier with build options. Underrated feature. /tangent

Anyhoo - every now and then someone on the forum asks about (more...)

Kscope18 flashback

After a few nights of good sleep (that means more than the average 4 to 5 hours at Kscope), it is time to sit back and evaluate what happened last week. I arrived on Thursday night before the event, just in time to catch Danny Bryant at the bar for "just one last beer" (I don't know how often I heard, and used, that phrase last week).
The whole Friday was filled with an all (more...)

Oracle XE 18c and #OracleRAD

This post is one of a series on what I learned while not at Kscope18.

Oracle XE (Express Edition) 18c - which is more than just a free, limited db.
Combined with the notion of #OracleRAD, you've got a mongo killer ;p

#oraclerad

Quite a few people had a shot of the XE 18c feature list.

The faces of Oracle APEX

This post is one of a series on what I learned while not at Kscope18.

The faces of Oracle APEX.
Well, some of them, at least. There are more listed in this picture, but it's harder to see. The one of Shakeeb comes across (more...)

Things I learned while not at Kscope18

Yep, as much as I wanted to be at Kscope18 this year, my abstracts were not accepted.
And it's a long way.
And I'm still waiting for this.

So this is a small collection of stuff I learnt only from Twitter - just by keeping an eye on the #kscope18 hashtag. Anyone can do his, even if you're not on twitter. Try that link and see.

#oracleRAD

Seriously, Twitter is an effective tool in keeping (more...)

Transposing data using UNPIVOT

A couple of years ago I posted a method to remove nulls from a report using the Value Attribute Paris - Column template.

Here's an example of how we might utilise the region, within the breadcrumb region position.

Note - some values may have been adjusted from this screenshot for their protection.

Any nulls were shown as a tilde, then hunted down and eliminated with some jQuery that executes after refresh of the region, and/or (more...)

Behind the scenes of an all APEX organized conference

Recently we held the very first edition of the “APEX Alpe Adria” conference in Graz, Austria (see this old post about how it started). This conference is meant for everyone in the Adriatic Region, and everyone willing to travel there.

With more than 180 attendees it was a huge success for the first edition. Today I want to share how we managed the conference, website, call for papers, selection, name tags, and so (more...)

Thoughts about the APEX_UTIL package

The APEX_UTIL package in Oracle Application Express is a mixed bag of "miscellaneous" stuff.

From the documentation: "You can use the APEX_UTIL package to get and set session state, get files, check authorizations for users, reset different states for users, get and purge cache information and also to get and set preferences for users."


It's clear that, over time, a lot of stuff has been placed here that really belongs elsewhere, or (more...)

A quick browse of the Beta APEX 18.1 documentation

Noticed a few additions, one one omission.

    • APEX_EXPORT – new package with supported methods for exporting APEX applications and other scripts into a CLOB: get_application, get_workspace_files, get_feedback, get_workspace
    • APEX_JWT – new package for JSON Web Tokens – encode, decode, validate
    • APEX_SESSION – new procedures: create_session, delete_session, attach, detach
    • Missing documentation: Legacy JavaScript APIs – not sure if anyone will miss this, they could just refer to the 5.1 documentation for this
    • I should mention also (more...)

Interactive Grid: Custom Select List on each row

I had a column in an editable interactive grid based on a Select List, which takes valid values from a table that supports “soft delete” – i.e. records could be marked as “deleted” without affecting existing references to those deleted records.

The SQL Query for the LOV was like this (my example is a view on a reference table of school “year levels”):

select name, id from year_levels_vw
where deleted_ind is null
order by  (more...)

APEX Authentication with Microsoft account

In the upcoming Oracle Application Express (APEX) 5.2 release, support has been added for so-called "Social Sign-In" authentication. This means that your users can login to an APEX application using an external authentication provider. In APEX 5.2, there is built-in support for Google and Facebook accounts. There is also support for "Generic OAuth Providers" and "OpenID Connect Providers". This blog post describes how you can use the "OpenID Connect Provider" to set up (more...)