Controlling what's displayed when an error occurs

Hi:
Is there a setting (cannot find one) that is analagous to the ERROR_LEVEL setting in OAS.
We need to control what's displayed when the URL points to a PL/SQL procedure that is not found.

You could use DB Prism.
It has included this functionality from early version, also its 100% compatible with mod_plsql.
Best regards, Marcelo.
Look at DB Prism's website: http://www.plenix.com/dbprism/doc/Home.html
null

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Hello.
I'm using Apex 4.2.1 against Oracle 11gR2 and Oracle App Server (mod_plsql).
My Set-Up:
I created an application containing a "classical" type report that is driven by a WHERE clause. I also have two date fields in an HTML region on this same page. These fields are used in the report WHERE clause. And the report is run by clicking a GO button on the page.
Here's what the WHERE clause looks like:
where table_date >= to_date(nvl(:P1_BEGIN_DATE, '01-jan-1900'), 'dd-mon-yyyy') and table_date <= to_date(nvl(:P1_END_DATE, '31-dec-2300'), 'dd-mon-yyyy')This is designed so that, if any of the date fields are NULL, then the minimum or maximum date will be used for the query.
These date fields should always have a value when the report is run, and so, I created two after submit NOT NULL validations, one for each of the date fields. If any of these fields is NULL when the GO button is clicked, an error message appears in the notification area at the top of the page.
Looking at all this, you might realize (as I do) that the nvl() functions in the above WHERE clause are redundant. After all, the validations are supposed to prevent these date fields from becoming NULL when the report is run. In any case, this set-up does work ok and points out a strange behavior with Apex.
My Problem:
If any of these validations throws an error message, the report still runs. In previous versions of Apex, if a validation (or, for that matter, any error) is thrown, the report remains static. The report region does not disappear and the report is not invoked until the user corrects the error.
If both date fields are filled, I click the GO button and the report correctly returns, say, 100 rows. But when I empty both of the date fields and click GO, the validation errors appear and the report still runs, now returning the maximum number of rows, say, 1000.
What I've Tried:
I added a Branch-to-Page with condition "No Inline Validation Errors Displayed" so that the page branches back to itself only when no errors appear inline and I changed the validation error messages to appear inline. This has no effect.
And if I remove the nvl() functions from the above WHERE clause, then, when validation errors are thrown, the report data is replaced with the "No data found" message. All very disconcerting to my users.
Does anyone know why Apex reports are still run in presence of validation errors?
And how do I get around this behavior?
Thank you for any help.
Elie

Hi, Scott.
Thank you for your help/suggestions.
I like your first suggestion: creating a DA on the GO button that causes my report region to refresh only if both begin and end date fields are populated. And so, I tried doing this.
My DA looks like:
Event: Click
Type: Button
Button Name: P1_GO
Condition: - No Condition -
Action: Refresh
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Selection Type: Region
Region Name: People Count
Event Scope: Static
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ELSE
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END IF;My P1_GO button was automatically changed to "Controlled by Dynamic Action". And "Execute Validations" for this button is set to "Yes".
Unfortunately, this DA does not work. When both date fields are filled, clicking the GO button does not cause the report (nor anything else) to refresh. However, if I navigate to another application tab and then return back to my report page, I notice that the report does refresh at that point. But clicking the GO button has no effect.
And when either or both of the date fields is NULLed, clicking the GO button does not cause my validation error messages to appear.
By the way, I do agree with your comment about the NVL() functions. As I had mentioned in my original post, I also realize that, with my WHERE clause, checking for NULLs in my date fields is not needed. Still, if users fail to fill these date fields, then it would be useful to remind users that these fields should be populated. This is why having the validation checks are still needed despite my WHERE clause.
In any case, would you know what I am doing wrong here with this Dynamic Action?
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Elie

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In the below SQL, data is written to SOURCE and from there to TARGET.
The DECIMAL columns in TARGET are deliberately smaller than those in SOURCE (eg a DECIMAL (12, 2) column populated from a DECIMAL (19,11) source).
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DROP TABLE dbo.TARGET
GO
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S_Name_NVARCHAR NVARCHAR (50) null,
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GO
IF OBJECT_ID ('dbo.SOURCE') IS NOT NULL
DROP TABLE dbo.SOURCE
GO
CREATE TABLE dbo.SOURCE
Name_NVARCHAR      NVARCHAR (2000) NULL,
RedComponent_DEC   DECIMAL (19,11) NULL,
GreenComponent_DEC DECIMAL (19,11) NULL,
BlueComponent_DEC DECIMAL (19,11) NULL
GO
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VALUES ('Beige', 272.195, 272.195, 244.42)
GO
INSERT INTO dbo.SOURCE (Name_NVARCHAR, RedComponent_DEC, GreenComponent_DEC, BlueComponent_DEC)
VALUES ('Bisque', 283.305, 253.308, 217.756)
GO
INSERT INTO dbo.SOURCE (Name_NVARCHAR, RedComponent_DEC, GreenComponent_DEC, BlueComponent_DEC)
VALUES ('Black', 0, 0, 0)
GO
INSERT INTO dbo.SOURCE (Name_NVARCHAR, RedComponent_DEC, GreenComponent_DEC, BlueComponent_DEC)
VALUES ('BlanchedAlmond', 283.305, 261.085, 227.755)
GO
--Is there data to migrate?
SELECT LEFT( S.Name_NVARCHAR,8000),S.GreenComponent_DEC,S.GreenComponent_DEC,S.GreenComponent_DEC
FROM (
SELECT * FROM SOURCE
) S
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--Next line gives a truncation error occurred in Sybase (gives a truncation error occurred in a query tool
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INSERT dbo.TARGET (S_Name_NVARCHAR,S_RedComponent_DEC_15_6,S_BlueComponent_DEC_12_2,S_GreenComponent_DEC_18_10)
SELECT LEFT( S.Name_NVARCHAR,8000),S.GreenComponent_DEC,S.GreenComponent_DEC,S.GreenComponent_DEC
FROM (
SELECT * FROM SOURCE
) S
select * from dbo.TARGET

Hi Dave,
I am consulting internally on this. To my understanding, this behavior is based on the ASE severity level, as returned in the TDS_EED token. AseExceptions are thrown when severity level is 11 or higher.
Our docs are not explanatory in this regard. Once I get clarification we will provide something in the form of wiki or KBA or doc bug to further explain the detail. Apologize for the delay and problems this caused. I guess since the command is aborted by ASE, therefore no insertion occurs, even though ASE indicates truncation occurs prior - makes this confusing.
The message severity, etc is controlled by ASE and the client is just following suit according to the TDS spec. Its just lacking in the client docs. This can be remedied.
ASE does provide the option to allow truncation and not abort. It's a set command:
Enter a query:
1 > set arithabort numeric_truncation off
Enter a query:
1 > INSERT dbo.TARGET (S_Name_NVARCHAR,S_RedComponent_DEC_15_6,S_BlueComponent_DEC_12_2,S_GreenComponent_DEC_18_10) SELECT LEFT( S.Name_NVARCHAR,8000),S.GreenComponent_DEC,S.GreenComponent_DEC,S.GreenComponent_DEC FROM (SELECT * FROM SOURCE
) S
4 rows Affected.
Notice though ASE does NOT send truncation message. This is when it is well known and accepted to insert and truncate the numeric data.
Cheers,
-Paul

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