Using Automatic Row Processing on an empty table

I started with a blank form based on a table. I used the wizrd and now have a good looking form with all the fields. However, I get ORA-01403: no data found - Error Unable to fetch row. when the form runs against an empty table.
How would I avoid that?
Thx,
Pete

Pete - If you run the page by passing a PK value (into a form item) and that value does not locate a row, you'll get that error. Make sure the item's type is Database Column and that its Source Used attribute is "Always, ...".
Scott

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Solved: Delete Using Automatic Row Processing

See Scott's reply below for the answer.
Hi there,
I have an application built in APEX 3.0.1 that I would like to be able to use a button to delete a single row from an underlying database table (owned by the parsing schema).
My APEX page has a 3 HTML regions on it:
1. Only a Select List and Go button for User selection (of Debit Note)
2. Ten display Items (Text Field, Disabled saves state) displaying further information about User selection
3. Conditional Delete button (region with custom image) - only displays when P73_DEBITNOTEID is NOT NULL
I'd like this button to be used to Delete the Selected Item and thought I'd be able to use a Data Manipulation Page Process - Automatic Row Processing (DML) page process to do this.
However, when I go through the wizard the Select item containing primary key column value field has no values in the search list.
My first question is why was there no values in the list?
So I manually entered the Item I required (P73_DEBITNOTEID) but when I run the page and click the button I get a PL/SQL missing expression error.
What is the best practice method to do DML actions on the underlying database tables. The tables are all owned by the parsing schema.
Your help in resolving this matter would be greatly appreciated.
Kind Regards,
Gary.

Gary,
The DML processes (and the creation wizards for them) are for use with items having source type Database Column. If your page items don't use this source type, then neither the Automated Row Fetch nor the Automatic Row Processesing (DML) process types will work.
Scott

Inserts using Automatic Row Processing (DML) should not clear cache

Hi,
I am using APEX 4.0.1.00.03.
I created a form on a table for inserts and updates.
After I do an insert, the Automatic Row Processing (DML) clears cache for all items on the page.
But the user wants to see the data he inserted without having to query. How can I achieve this?
Thanks
Chandra

There isn't any "reset page" process on my page.
--Chandra.

Page having PL/SQL process and Automatic Row Process for 2 different tables

Hi,
I have a page containing 2 regions A & B.
Region-A content would be updated to table T1(PK : Ticket#).
Region-B content would be inserted into table T2(PK: Attachment# ; FK: Ticket#).
Region-B is used for uploading a file content into T2.
Since I cannot use 2 DML processes on the page for 2 different tables with a common column, so I have a PL/SQL process to update the record into T1 and an Automatic Row Process(DML) for inserting into T2.
Now the issue is in Region-B when I select a file using 'Browse' button and click on Upload button to fire the Automatic Row Process, the success message is displayed but the file is not uploaded into the table. But when I moved the entire Region-B and the Automatic Row Process to a different page and clicking Upload is working fine and inserting the record into the table along with the file content.
An item P10_TICKET_NUMBER with source type as Database column with source value as TICKET_NUMBER is used in Region-A.
I have gone through the forums and found some of the threads below
Re: 2 Automated Row Processes for one page?
Re: Error when trying to create 2 Forms on same page on 2 tables with ID as
where people facing similar issues but here I have followed the solution provided(with one PL/SQL process and other Automatic process) in the threads but still issue persists.
Can anyone throw some light on this please.
Thanks,
Raj.

Hi Teku,
You just have a look at this thread, where u can find a solution for your problem.
INSERTING Records into Second table based on First table Primary Key
hope this helps.
Bye,
Srikavi

Strange error when using Automatic Row Processing

Hi All,
I have a page with 2 regions
- first is a form for data entry (4 fields - 2 hidden, 1 LOV, 1 text)
--> 3 buttons - Cancel, Create, Create & Create Another
--> Create branches to next page, Create Another branches back to same page
- second is report of items entered into the form (conditional display)
This all seems to be working, except that when I click either of the buttons, I get this:
Action Processed. -- The success message - so data is inserted
Unexpected error, unable to find item name at application or page level.
Error ERR-1002 Unable to find item ID for item " P31_PIECE_CNT)" in application "122".
And the 'OK' link. When I use the link to go back to the page, the data shows up in the report. So I know that the process is working up until it does the insert, but not sure why I get the error.
Corey
Database Version Information
Oracle9i Enterprise Edition Release 9.2.0.7.0 - Production
PL/SQL Release 9.2.0.7.0 - Production
CORE 9.2.0.7.0 Production
Product Build: 2.0.0.00.49

All that is saying is that no such page/app item called P31_PIECE_CNT exists in the application and some after-submit component on that page is trying to refer to that item name.

Are 'read only' items causing my automatic row processing to fail?

I have a form that uses automatic row processing to update my table.
I recently had to add a check to lock down the fields using the read only condition where a record has been 'approved'. So, I turned off all of the fields and hid the update button.
Now they want me to check to see if the user is a manager, and if so, allow them to see the update button, and make a single field on the form modifiable.
I have the user identified as a manager, and can make the field accept the change (a yes/no combo box). Yet when they click the update button, the form just sits there. A branch is supposed to fire on hitting that button, taking them back to the previous report, but it doesn't happen. The source of the combo box in question uses a column on the table, and works fine when the form has all of the fields showing for modification.
I had some validations that I finally set to never fire, thinking that they were failing and just not giving the error messages. I know a bad sql or pl/sql atatement in a validation will cause the form to just keep sitting there doing nothing, and thought it might help.
Several of the various fields are combo boxes, several are text boxes.
I'm stumped.
Shall I keep the regular update button hidden whether it is a manager or not (because it has been 'approved'), and enable a new button that fires off a process to update the one field that the manager may want to change? Does making a field 'read only' always have a detrimental effect on the auto processes I've been counting on? Is that if fact what is happening now?
Thanks in advance for any advice or comments on this.
Clayton

Hi, Scott.
My version is 3.0.0.00.20
I have received info to set up the application, though I have not activated it as yet. I'm reluctant to try to load up the various tables to make it work. It could be done.
My workaround is to that the user (a manager) fires off to another form to show an individual record, and ask if he/she really wants to make this change. On submit, they will be taken back to the original locked down form, and I will update the single field in that process of returning them. This will actually be a plus, in that I expect to show them all of the 'duplicate' entries for that item, and show them that by 'activating' this particular item, they will 'deactivate' the one duplicate that is currently active. Or, if they are deactivating the sole item that is active, that there will in fact be no active items in the system. Convoluted as heck, but they swear this is how they've been doing business with their briefcases and file cabinets of Excel files. I'm surprise they even float at this point (these are ships we're talking about).
This all may be due to the form originally having a next/previous/count process once arrived at my clicking on the edit button of the report of items. All of that has been hidden away, and though the fields exist of the form, they are not used. They only see the current item that they clicked on from the report.
I read up a little on session state, as well as posts with the debug error I was getting. I'm still not on board with the whole issue of 'state'. Items stay as they are until they're changed, no? I suppose that sounds simplistic.
One of the things that caught my eye was several combo box lists that on read only mode, showed [] square brackets. Which, in some cases is okay.
What I'll try to do is set up a public application - for future use if nothing else. I'm going to be working on this for awhile. I have more than a bit of work to do to cleanse the data as well as get rid of the single sign on requirement (I'll assume that I should have to do this) in order to share the app.
I know you're expecting me to have this up and running for you to look at, but I'm under the gun. And they actually like my workaround.
I'll keep everybody informed, one way or another.
Clayton

Automatic Row Processing using Apex?

Hi All,
I am in build forms in apex during that scenerio i am creating the Process as "Automatic Row Processing (DML) but it is not working.. Or in other words assume that in form i have 5 text items and a button.. Now when i give empno and clik on button.. the deatils should be fecthed for that empno deatils using "Automatic Row Processing".
I have tried in google but i am not able to get the any proper way to resolve it..Can anybody help me out to resolve it..or if any links which may help me to find out the solution..
Thanks,
Anoo..

Yes..I have done.. but the problem is some times it is fetching and at all. So i thought to have a clear idea for fetching the data through Automatic fetch process..
-Anoo..

BLOB column not updating using automated row processing

I have fiddled around with creating a simple application to understand how APEX handles images stored in blobs - did a simple app that stores them, gets them, displays them. it all works great.
so i have this existing table/application that i am trying to add a BLOB column to here's what i did:
it's a pretty simple form on a table with report application. just one table.
I added the BLOB to the table (and the other mimetype etc cols as well).
i added the page items to the form page.
i basically made everything identical in terms of page item settings and such to the working simple application.
so here's the problem... when i run the application and update a row, the BLOB column isn't updating. neither are the mimetype or filename columns. the activity date col is.
and here's another interesting thing. i quickly created another form and report pair on the same table, and when i ran it, it updates the blob col just fine.
why is my original form not updating it? what can i do to remedy this? any ideas? i've gone though setting by setting for the blob page item and the one that works is identical to the one that doesn't.
i'm using the automatic row processing to update the table.
Edited by: moo on Jun 23, 2011 5:33 AM

Gary,
The DML processes (and the creation wizards for them) are for use with items having source type Database Column. If your page items don't use this source type, then neither the Automated Row Fetch nor the Automatic Row Processesing (DML) process types will work.
Scott

Automatic Row Processing?

Hi,
I have a requirement to create forms that insert into multiple tables and returns items from multiple tables. What are my options? Can I still use automatic row processing and fetching?
Thanks in advance.

create multiple regiions embedded with different table

Automatic Row Processing and Casade Delete

I have Automatic Row Processing for delete on a table, however I have FK's dependent on this table. How do I do a cascade delete using Automatic Row Processing DML for a delete ?
Any way besides writing a trigger ?

My fault, my constraint was not written properly to indicate on delete cascade.

Automatic Row Processing (DML) using synonym name instead of table

I want my APEX form to select info using the table name but perform all the DML (add, change, delete) using the synonym name. I created the form using the wizard and went into the "Process Row of xxx" process that was created. I tried changing the table name to synonym name under the 'Source: Automatic Row Processing (DML)' section, but it still uses the table name. Is this possible or do I need to manually create processes using the synonym names

Hi,
when I change the Table Name property in the "Automatic Row Processing (DML)" process to a non existing table it raises an error when I run the page and try to save something. So it's actually using the value.
Does the synonym point to the same table or a different table? What is the intention behind selecting from the table but updating through the synonym?
Patrick
My APEX Blog: http://www.inside-oracle-apex.com/
The APEX Builder Plugin: http://builderplugin.oracleapex.info/
The ApexLib Framework: http://apexlib.sourceforge.net/

Adding a new field to an Automatic Row Processing form

Hi,
I have a form that I built through the form Wizard which has an automatic row processing function. It is working very well, except that any new fields I add to the form are not being updated in the database when the row is processed. I have set up the field exactly the same as other fields which are working and were originaly created by the wizard. I have deleted and recreated the row processing Page Process, but nothing seems to make it work. Have I missed anything? I don't want to recreate my page from scratch each time I want to add a new field.
Thanks,
Steve

if you're positive that your new fields/columns update correctly when you use Text Field items and not when you use Select List ones, i'd check to see what your select lists are returning. a good way to see exactly what your form got from your select list items is to check the session state for your select list items right after you submit your page (clicking the "Session" link in your developer toolbar in your runtime environment is a good way to get to this info). also, even though you said your added Text Fields work and your Select Lists don't, i'd still check the "Source Type" and "Source value or expression" fields of your select list items to make sure they're set correctly. for form items to work with your table in htmldb auto-dml processing, you need to set the "Source Type" to "Database Column" and the "Source value or expression" to the case-sensitive name of your db column.
hope this helps,
raj

ORA-01403: no data found Problem when using AUTOMATIC ROW FETCH to populate

ORA-01403: no data found Problem when using AUTOMATIC ROW FETCH to populate a form.
1) Created a FORM on EMP using the wizards. This creates an AUTOMATIC ROW FETCH
TABLE NAME - EMP
Item Containing PRIMARY KEY - P2099_EMPNO
Primary key column - EMPNO
By default the automatic fetch has a ‘Process Error Message’ of ‘Unable to fetch row.’
2) Created a HTML region. Within this region add
text item P2099_FIND_EMPNO
Button GET_EMP to submit
Branch Modified the conditional branch created during button creation to set P2099_EMPNO with &P2099_FIND_EMPNO.
If I then run the page, enter an existing employee number into P2099_EMPNO and press the GET_EMP button the form is populated correctly. But if I enter an employee that does not exist then I get the oracle error ORA-01403: no data found and no form displayed but a message at the top of the page ‘Action Processed’.I was expecting a blank form to be displayed with the message ‘Unable to fetch row.’
I can work around this by making the automated fetch conditional so that it checks the row exists first. Modify the Fetch row from EMP automated fetch so that it is conditional
EXIST (SQL query returns at least one row)
select 'x'
from EMP
where EMPNO = :P2099_EMPNO
But this means that when the employee exists I must be fetching from the DB twice, once for the condition and then again for the actual row fetch.
Rather than the above work around is there something I can change so I don’t get the Oracle error? I’m now wondering if the automatic row fetch is only supposed to be used when linking a report to a form and that I should be writing the fetch process manually. The reason I haven’t at the moment is I’m trying to stick with the automatic wizard generation as much as I can.
Any ideas?
Thanks Pete

Hi Mike,
I've tried doing that but it doesn't seem to make any difference. If I turn debug on it shows below.
0.05: Computation point: AFTER_HEADER
0.05: Processing point: AFTER_HEADER
0.05: ...Process "Fetch Row from EMP": DML_FETCH_ROW (AFTER_HEADER) F|#OWNER#:EMP:P2099_EMPNO:EMPNO
0.05: Show ERROR page...
0.05: Performing rollback...
0.05: Processing point: AFTER_ERROR_HEADER
I don't really wan't the error page, either nothing with the form not being populated or a message at the top of the page.
Thanks Pete

Automatic Row Processing (DML) - Return Key Into Item

Hello,
This question is on Apex 4.2:
I'm Displaying the [UNIKEY] column value after the record is inserted into the table using :
page process > process row table_name > Source: Automatic Row Processing (DML) > Return Key Into Item > "Item Name"
This works fine while inserting records, my question is why this does not respond on update / delete ?
ϯ LT

LT
Check your branches.
What might be happening is that on insert and update an other branch is followed.
Where the branch of the insert either isn't clearing the cache of the page or is setting the item with it's own value.
The branch on the update on the other hand is clearing the cache of the page and not setting the item.
With a delete there is a clear cache process generate by the wizard. Check if this process is only running on the delete and not on the update.
From memory the process is called something with reset.
If the above doesn't help try to replicate the problem on apex.oracle.com and give access with a guest developer account so we can have a look.
Nicolette

Automatic Row Processing (Update not running)

I have an Automatic Row Processing routine that returns the success message, but it never performs the updates.
I Put a special message in the Process Success and Failure Messages and the Success message comes up everytime with no database updates happening.
I changed the table name to a table that DOESN'T exists just to see if the failure message appears and I still get the Process Success Message.
Any ideas why the DML say's it's success when it's not doing anything?
Edited by: spuchc on Jun 2, 2010 11:48 AM
Edited by: spuchc on Jun 4, 2010 7:48 AM

That doesn't appear to be the issue.
When I update the data for the of views on the page they work fine and have specific button names.
Also I've tried used PL/SQL Expression instead of button controls to fire the DML and it does fire.
Since it's not generating the update statement (when I look in V$SQL), why would APEX even given me back a "Success" message?
Also when I change the view name in the DML process to a bogus name, it still tells me "Success".
I'm going to look at calling my backend API's directly without the Apex DML because I've tried everything I know and it's just this one view that won't updated.

Using Automatic Row Processing on an empty table

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