Deferrable constraint in Oracle database - be aware of them!

Recently I bumped into an error during Oracle APEX application import and I started digging in the depths of the APEX trying to figure out what the problem was. The error message stated that one foreign key constraint failed and I hoped to find a procedure with DML statement, where this error happened.

The error back trace was pretty long... and it ended at the COMMIT statement 😐At the COMMIT statement? And not at the very DML operation? 😮 I was puzzled... staring blankly at the screen... checking three times if I traced the error correctly... but I did. 😵

And suddenly I remembered that there is a parameter related to table constraints, the parameter I never used in my whole life, which determines if the constraint is validated at the moment of DML statement execution OR later on during the transaction ending COMMIT statement. This parameter is called "deferrable". And indeed, it was a case here. In the problematic APEX table all constraints were initially deferrable.

Oracle APEX - export multi language application components with APEX_EXPORT API

If You want to export multi language application components with APEX_EXPORT API (function apex_export.get_application) it is pretty tricky to get them exported for other languages.

Parameter p_with_translations is not working. Scripts will always be generated for main language.

But hopefully there is a way to get component scripts for translated applications.

In my testing case I have the main application in English language (app ID 124) and 2 translations to Dutch (app ID 999) and French (app ID 998). See pic below.

To get the component scripts for page 1 and Yes/No LOV (shared component) from main application ID 124 in English language the syntax is 

    lrFiles := apex_export.get_application(
        p_application_id => 124,
        p_split => false,
        p_with_translations => true,
        p_components => apex_t_varchar2( 'PAGE:1', 'LOV:39437346231509935' )
    );

But to get those scripts for translated application ID 999 in Dutch language the syntax is 

    lrFiles := apex_export.get_application(
        p_application_id => 999,
        p_split => false,
        p_with_translations => true,
        p_components => apex_t_varchar2( 'PAGE:1.999', 'LOV:39437346231509935.999' )

    );

So, the main component ID stays the same but it is followed by dot plus application ID.

Generated script:

Where to download Oracle eCertificate and Badge for the passed exam?

So, You've just passed an Oracle exam, feeling happy and full of energy 💪 and now You want to download Your badge and eCertificate.

But where to find it? 😕

Maybe I'm a little confused guy... but honestly, it took me some time to click through the CertView portal to find the correct spot.