Comments for About APEX - A developers blog

Comment on Using audit columns with APEX by M S HOSSAIN

M S HOSSAIN — Thu, 05 Jan 2012 07:32:10 +0000

Why :APP_USER,nvl(v(‘APP_USER’),USER) returns anonymous?
How can resolve it?

Comment on Oracle APEX 4.0 Cookbook by Andrew

Andrew — Sat, 17 Dec 2011 09:38:19 +0000

Dear author,
new code did not help for obvious reason: the db_objects.sql file is too long (“URL Encoded SQL length exceeds allowed 32k limit” in Home -> SQL Workshop -> SQL Commands)

Trying to run commands step by step, I get “ORA-00900: invalid SQL statement”

By the way, did you run the code in db_objects.sql yourself?

Comment on Substitution Variables over a Database Link in APEX by Sean

Sean — Fri, 02 Dec 2011 16:20:22 +0000

Just curious, what did your remote trace show? Was the bind/substitute really the problem? Or was the predicate not pushed to the remote site at all?

Did you really want the remote site to be the driver rather than the local?

You should not have to do this, but try rearranging the query

SELECT e.ename, d.dname
FROM emp e,
(SELECT id, dname
FROM dept@remote d
WHERE d.loc = :p2_dept_loc) d
WHERE d.id = e.dept_id;

if rearranging does help, perhaps the problem is OPTIMIZER_MAX_PERMUTATIONS set too low

Comment on Substitution Variables over a Database Link in APEX by admin

admin — Fri, 02 Dec 2011 09:57:39 +0000

Thanks for your comments Roel and Alex!

@Roel: Yes, I do know that. But given the fortunate circumstances for this application, that’s not a problem.
Both your other suggestions resulted in the same problem.

@Alex: SQL injection is handled in the real application. It’s a very good consideration, so I’ll mention it in the blog post. And you’re right, it’s not a bind variable. I’ll change that in the text.

Comment on Substitution Variables over a Database Link in APEX by Alex

Alex — Fri, 02 Dec 2011 09:46:33 +0000

It’s not a bind variable, it’s a substitution variable. Now enter: x’ or ‘a’='a
in P2_DEPT_LOC… SQL Injection.

Comment on Substitution Variables over a Database Link in APEX by Roel

Roel — Fri, 02 Dec 2011 09:44:46 +0000

Hi Michel,
Be aware that your solution will result in a hard parse for every value of P2_DEPT_LOC. Might not have a serious impact now in your situation, but is not preferable.
Did you also try either v(‘P2_DEPT_LOC’) or (select :P2_DEPT_LOC from dual) ?

Comment on Oracle APEX 4.0 Cookbook by admin

admin — Fri, 02 Dec 2011 09:22:07 +0000

Hello Andrew,
We have already sent an updated script to Packt. It should be online, or else it will be very soon.

Comment on Oracle APEX 4.0 Cookbook by Andrew

Andrew — Sat, 26 Nov 2011 18:00:02 +0000

Dear author,
the script you provided (version 03 Februari 2010) does not work in SQL Workshop in APEX.
Could you please export the application and publish it?

With very best regards,
Andrew

Comment on Oracle APEX 4.0 Cookbook by Apex Themes Chapter Question

Apex Themes Chapter Question — Tue, 21 Jun 2011 00:37:11 +0000

Hi Michael – I was reading your excellent Apex 4.0 cookbook that I purchased from packtpub. Great tips and techniques on Apex. I have a question about the themes switching chapter. I tried your example, but the new theme_115 doesn’t seem to display the images!..Following is further info. Please reply to my email if you have a chance.
–
I followed thru the steps mentioned as I’m trying out a new custom theme import.

However, when I switched the newly imported theme, no images are showing up on the app.

The chapter mentioned about modifying all image references – which I did – Can you please advice why my images are not visible on the switched theme.

> I have apex 4.0.2 installed on my local windows machine – EPG config.
> My $apex_home/images/theme_18 and theme_115 directories are on my c:\ local drive
> Used theme 18 as baseline
> modified all references to t18 and theme_18 to t115 and theme_115 in the .css and the exported theme18.sql and saved it to theme115.sql
> created directory on my windows (local) apex installation $apex_home/images/theme_115/
> imported the theme115.sql into my apex app.
> switched the theme.

Running the test app, I’m not seeing any of the images on the page being rendered. I tested referencing
an image from theme_18 that was available during apex install, so that image gets rendered on the page.

Why is the images from the new theme_115 directory not being picked up and shown on the
practice app I’m trying to build?

Can you please advice.
-
SKumar

Comment on Javascript confirmation popup in APEX by Chris Phillips

Chris Phillips — Thu, 26 May 2011 15:36:48 +0000

Hi,

Is there a way to control the text size and style while using this method?

Thanks,
Chris