Skip to main content

Installing APEX 2.2 on XE

As you might have noticed APEX 2.2 is available for download. On the download site nowhere is stated that is doesn’t work for on XE, but installing on XE fails directly. How to solve this?

This is due to the following lines in the upgrade procedure in the file apexins.sql:
t_edition varchar2(30);
edition_is_xe exception;
--select edition into t_edition from v$instance;
execute immediate 'select edition from v$instance' into t_edition;
if nvl(t_edition,'x') = 'XE'

dbms_output.put_line('- Ap Ex cant be installed in Express Edition.-');
raise edition_is_xe;
end if;
when edition_is_xe then raise;
when others then null; -- no edition column, not xe
Once the lines are REM’med out the upgrade process runs fine. After finishing the other steps from the upgrade manual I can login, change and run previously defined applications. The main difference with the “lightweight” APEX installed with XE is that there are workspaces defined for every Apex-developer (with the same name).

At this point you are only missing access to the workspace INTERNAL using the ADMIN account. This is easily solved by creating a new admin account by logging in in SQLPLUS as FLOWS_020200 user (unlock the account first) and issue:
p_user_name => 'admin2',
p_email_address => '',
p_web_password => 'admin2') ;
Now we can administer APEX on XE with ADMIN2 as were it a “normal” APEX installation!


Anonymous said…
Hello Roel !
I cannot find out where to copy the "images"-directory from the installation-zip into the XE-tree as told in the post installation tasks. I used /i/ as @apexins-parameter as recommended but now I am standing in the dark. The diretories named in the installation docu does not exist in the XE-version. Do you have a hint ? Thanks !

Roel said…

/i/ is a virtual directory. When using XE (on Windows XP) you can create a new Network Location using the Wizard (create networking location). There you can enter as the location (use system/systempassword when prompting for user/password). Now you have a virtual directory (let's call it 'Z')in your Explorer, and you can copy the images to z:\img\.
See for more info about this...
ApexDev said…
Just googling APEX and XE and this blog came up near top. Do you know of any issues installing APEX 2.2 (not an Upgrade) with Oracle XE?

Any other websites purely that talk about supportability and other issues with Oracle XE and APEX?

Am aware of OTN but wondering if there were any site specific to this setup?

Roel said…
Before installing APEX on XE you first need to de-install XE (because Apex comes pre-installed on XE). I've never done this (there was no need), so I can't help you out there. Other sites of interest about Apex (on XE or other flavour):
Ofcourse this is absolutely not complete list, but something to start with...


Popular posts from this blog

Filtering in the APEX Interactive Grid

Remember Oracle Forms?

One of the nice features of Forms was the use of GLOBAL items. More or less comparable to Application Items in APEX. These GLOBALS where often used to pre-query data. For example you queried Employee 200 in Form A, then opened Form B and on opening that Form the Employee field is filled with that (GLOBAL) value of 200 and the query was executed. So without additional keys strokes or entering data, when switching to another Form a user would immediately see the data in the same context. And they loved that.

In APEX you can create a similar experience using Application Items (or an Item on the Global Page) for Classic Reports (by setting a Default Value to a Search Item) and Interactive Reports (using the APEX_IR.ADD_FILTER procedure). But what about the Interactive Grid? There is no APEX_IG package ... so the first thing we have to figure out is how can we set a filter programmatically?

Start with creating an Interactive Grid based upon the good old Employees tab…

Adding items to your Interactive Grid Toolbar

The APEX Interactive Grid uses the Toolbar widget to create the default Toolbar showing the Search box, Actions menu, Save button etc. And since quite a while there is a nice Plugin "Extend IG Toolbar" by Marko Goricki that makes it very easy to add additional buttons to the Toolbar.

But what if you need more than a button? 
Inspecting the contents of widget.toolbar.js, you can easily spot there can be added more to the Toolbar than just a button: The type of control, available values:
The first example will show a way to easily switch from one filter to another. Of course we could use the standard functionality and create two different Report views, but using a Radio Group on the Toolbar gives a more "Tab" like user experience.

So how can we create a Radio Group that looks like a switch in the Toolbar?
In the Javascript Code …

apex_application.g_f0x array processing in Oracle 12

If you created your own "updatable reports" or your custom version of tabular forms in Oracle Application Express, you'll end up with a query that looks similar to this one:
then you disable the "Escape special characters" property and the result is an updatable multirecord form.
That was easy, right? But now we need to process the changes in the Ename column when the form is submitted, but only if the checkbox is checked. All the columns are submitted as separated arrays, named apex_application.g_f0x - where the "x" is the value of the "p_idx" parameter you specified in the apex_item calls. So we have apex_application.g_f01, g_f02 and g_f03. But then you discover APEX has the oddity that the "checkbox" array only contains values for the checked rows. Thus if you just check "Jones", the length of g_f02 is 1 and it contains only the empno of Jones - while the other two arrays will contain all (14) rows. So for processing y…