Multi row update not occuring

I have created a tabular form using the wizard. This form will show three columns (and in addition a checkbox). I would like this form to be updateable in only certain instances. Because of that, I select the columns twice. I make one of them updateable, and the other read-only. Then I have a conditional display for the columns, so that the updateable columns are shown if a status variable in my page is 'EDIT' and the read-only columns are shown otherwise.
The problem is that the multi row update does not occur. If I show one of the read-only columns when in the edit mode, the update is done. Also it is executed if I show one of the editable fields when the page is not in edit mode. But when I show only the editable fields in edit mode, and only the read-only fields when in read-only mode, the process is not run.
What can I do about this? Why doesn't the multi row update occur?

An alternative is to control the updates by controlling the buttons. Only show the submit/update button if the status on the page is "EDIT".

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Multiple Users - Tabular Forms - Multi Row Update.....

Greetings All,
Any comments, assistance, links, or even answers on the following situation would be much appreciated....
I have a Application Express 4.0 (Could upgrade to 4.1 if it would help this issue)
I have a wizard generated tabular form on a table, the form will show up to 600 records (rows) on a page.
Part 1:
The situation:
User 1: Opens the form and brings up latest data set.
User 2: Opens the form and brings up the latest data set.
User 1: Changes data for record 1
User 1: Hits submit. The data is saved.
User 2: Changes data for record 1
User 2: Changes data for record 2
User 2: Hits submit. The following error is produced:
Error in mru internal routine: ORA-20001: Error in MRU: row= 1, ORA-20001: ORA-20001: Current version of data in database has changed since user initiated update process. current checksum = "3EE15D666E9DBDC59D34CE4CFB3950C0", item checksum = "922DA12AE1E3D8856695745C4D2830D2"., update "<Removed> Error Unable to process update.
When this error occurs no updates get made to the table.
I understand that row 1 can not be updated, however I would like row 2 (and all other rows where there is no conflict) to be updated. I would then like to be able to highlight in the form the rows that failed to update (And reload the data in them from the DB).
Is this something I can achieve using my own MRU procedure, or in another way?
Can anyone point me to a good example, tutorial or book showing how to do this.
Thanks!

Thanks for the comments guys.
I have solved my issue in two different ways. Way one was not so clever, but worked, involving writing my own process for handling multi-row updates and would allow a user to fill in data for multiple rows (say 10) and have only the row with changed data rejected. V2 takes a very different approach, it uses Javascript, AJAX and the DOM model of the form to check when data is changed / updated by the user. Essentially, when a user enters an updateable form element, a AJAX request checks if the data has been changed. If it has, the value in the form is updated, and the color changed to blue to alert the user. When the user updates the data item, and AJAX request posts the new value to the database, where it is inserted. I had to build a bit of a framework to make this useable, and have to use dynamic sql in the database packages, but it work really well for what my users need! There are limitations (Currently it only supports date fields, text fields and drop down lists) but it works for me. It also involves traffic back and forth with the server each time a user moves the focus to a new form element, but it is a very light request and the work to do the select / updates in oracle is all based on a primary ke, so is ver quick.
Solution 1: (Would need to be made much more elegant):
1: Create a new text Item called P5_MESSAGE (To display error / success messages)
2: Create a new process:
DECLARE
l_cks wwv_flow_global.vc_arr2;
j pls_integer := 1;
vUpdatedCount number := 0;
vErrorCount number:=0;
vMessage varchar2(4000):='';
BEGIN
select wwv_flow_item.md5(firstname,lastname,age) cks
BULK COLLECT INTO
l_cks
from VA_TEST1 ;
for i in 1..l_cks.count
loop
if htmldb_application.g_fcs(i) != l_cks(i) then
-- Log error
vErrorCount:=vErrorCount+1;
vMessage:=vMessage||'Could not update row with ID:' || htmldb_application.g_f01(i) || '. This data has been updated by another user since you retrieved the data.<br>';
else
-- Do insert
vUpdatedCount:=vUpdatedCount+1;
update VA_TEST1
set
FIRSTNAME = replace(htmldb_application.g_f02(i),'%'||'null%',NULL)
,LASTNAME = replace(htmldb_application.g_f03(i),'%'||'null%',NULL)
,AGE = replace(htmldb_application.g_f04(i),'%'||'null%',NULL)
where ID = htmldb_application.g_f01(i);
end if;
end loop;
:P5_MESSAGE := vMessage;
end;
Note, this currently updates every row, even if the data is unchanged, this could be fixed by comparing the checksum of the data to be inserted with the checksum of the data in the table, if the same then no need to insert.
Solution 2:
Too complex to explain in detail here, if you need to implement this then let me know.

Conditional Select List in a Report maintained using a Multi Row Update

I have a SQL Report that is maintained with a "Multi Row Update" process. One of the columns needs to be ether a "Select List" based on a named LOV or just "Text" (Read Only) based on the value in the column. I have the UI working using a case statement and apex_items in me SQL but the Report Column is not marked "Edit" and the "Multi Row Update" process just ignores changes.
Any help would be great!

Just curious, why is the first parameter to in third TEXT_FROM_ITEM invocation NULL instead of 20? Also check your first parameter in your ELSE. Shouldn't it be a global number as well?
Did you try adding a hidden item to your SELECT statement? Something like:
(case
when CSSN.KTTR_BILL_STAT_UID = KT_UTIL_PKG.get_kttr_uid_from_ref_val('SESSION_BILL_STAT','SESSION_BILL_STAT_1') then
apex_item.select_list_from_lov(20,CSSN.KTTR_BILL_STAT_UID,'KTTR_SESSION_BILL_STAT_PRPR','','NO')
when CSSN.KTTR_BILL_STAT_UID = KT_UTIL_PKG.get_kttr_uid_from_ref_val('SESSION_BILL_STAT','SESSION_BILL_STAT_2') then
apex_item.select_list_from_lov(20,CSSN.KTTR_BILL_STAT_UID,'KTTR_SESSION_BILL_STAT_PRPR','','NO')
when CSSN.KTTR_BILL_STAT_UID is null then
apex_item.text_from_lov(20,'KTTR_SESSION_BILL_STAT')
else
apex_item.text_from_lov(20,CSSN.KTTR_BILL_STAT_UID,'KTTR_SESSION_BILL_STAT')
end) as KTTR_BILL_STAT_DISP,
apex_item.hidden(30,CSSN.KTTR_BILL_STAT_UID) MIRRORThen in either an Javascript onBlur event on KTTR_BILL_STAT_DISP or in a Page Process assign the value of KTTR_BILL_STAT_DISP to MIRROR.
Mike

Multi Row update using pl/sql anonymous block process

Does anyone have an example of multi row update using a pl/sql anonymous block process?
The reason I can not use the apex mru process is that the table in questions has a five field key.
My attempts have failed with a bad number.
Thanks,
Gary

Hi Gary,
can y<ou pls send the definition of thet table and the UPDATE sql.
It is a littel difficult like this.
We need more info.
BR,
Lutz
=;-)

Multi-row updates

Why is it necessary to include the if statement in the below multi-row update process?
I spent a large amount of time puzzling over this.
Thanks!
Bill
for i in 1..htmldb_application.g_f01.count loop
if htmldb_application.g_f01(i) is not null then
update my_table
set
column_1 = (replace(htmldb_application.g_f02(i),'%'||'null%',NULL))
where id = htmldb_application.g_f01(i);
end if;
end loop;

Hi Marc,
Here's my query with the key items in bold. There are no null values in the g.grid field (it's the primary key). Thanks.
Bill
select g.GRID,
g.FAANUM,
'<a href="javascript:submitDate(''' || g.grid || '''); ">' ||
decode(decode(g.date_sub_3, null, 1, null),
1, decode(g.date_sub_4, null, '-', to_char(g.date_sub_4, 'fmMM/fmDD/YY')),
decode(g.date_sub_4, null, decode(g.date_rec_3, null, '-',
(30 - trunc(sysdate - g.date_rec_3))
|| '&nbsp' || decode(trunc((32 - trunc(sysdate - g.date_rec_3))/6),
6, '<img src="#FLOW_IMAGES#greenN.gif" alt="You must submit this by: ' ||
to_char(g.date_rec_3 + 30,'fmMM/fmDD/YY') || '">',
5, '<img src="#FLOW_IMAGES#greenN.gif" alt="You must submit this by: ' ||
to_char(g.date_rec_3 + 30,'fmMM/fmDD/YY') || '">',
4, '<img src="#FLOW_IMAGES#greenN.gif" alt="You must submit this by: ' ||
to_char(g.date_rec_3 + 30,'fmMM/fmDD/YY') || '">',
3, '<img src="#FLOW_IMAGES#greenN.gif" alt="You must submit this by: ' ||
to_char(g.date_rec_3 + 30,'fmMM/fmDD/YY') || '">',
2, '<img src="#FLOW_IMAGES#yellowN.gif" alt="You must submit this by: ' ||
to_char(g.date_rec_3 + 30,'fmMM/fmDD/YY') || '">',
1, '<img src="#FLOW_IMAGES#redN.gif" alt="You must submit this by: ' ||
to_char(g.date_rec_3 + 30,'fmMM/fmDD/YY') || '">',
'<img src="#FLOW_IMAGES#past.gif" alt="You failed to submit this by: ' ||
to_char(g.date_rec_3 + 30,'fmMM/fmDD/YY') || '">')),
to_char(g.date_sub_4,'fmMM/fmDD/YY'))) || '</a>' "DATE_SUB",
g.DATE_REC,
g.REC_BY,
g.GRIEVANT "Grievant",
'<a href="f?p=&APP_ID.:9:' || :APP_SESSION || '::::P9_GRID:' || g.GRID || ' target="_blank">'||substr(g.topic,1,20)||'..</a>' "Topic",
y.word,
'<a href="f?p=&APP_ID.:9:' || :APP_SESSION || '::::P9_GRID:' || g.GRID || ' target="_blank"><img src="#FLOW_IMAGES#view2.gif" border="0"></a>' "VIEW",
g.reply_by,
g.natca,
trunc(g.reply_by-sysdate + 1,0) "Days",
g.grid "Notes",
null "Withdraw",
(select count(*) from gr_blob_intersect where grid = g.grid) "NumAtt",
decode(g.article, 0, 'E', 1, 'U') "Type_2",
'<a href="f?p=&APP_ID.:29:' || :APP_SESSION || '::::P29_GRID:' || g.GRID || ' target="_blank"><img src="#FLOW_IMAGES#xxx.gif" border="0"></a>' "VIEW/XXX",
htmldb_item.hidden(1,g.grid) || htmldb_item.text(2,g.arb_no,6) "Arb No",
htmldb_item.select_list_from_query(3, g.approval, 'select distinct text d, aid r from gr_approval order by aid',null,'NO') "Approval",
htmldb_item.text(4,g.advocate,6) "Advocate",
htmldb_item.date_popup(5,null,g.date_arb_sched,'DD-MON-YY',8) "Arb Date"
from GRIEVANCE g, yesno y
where y.id = nvl(g.ORAL,0)
and g.gr_status = 4
and (g.facility_id in (select id from gr_facility_lookup where region_id = (select f.region_id from gr_emp g, gr_facility_lookup f where upper(username) = :APP_USER and g.facility_id = f.id)) or g.facility_id = 3)
and g.status_id = 1
order by g.reply_by_4

More than one multi row update region on one page - how ?

Hi.
I have a page on which i want to use two multi row update regions ( updateable report with three buttons like new/delete/save ).
But i do not find a setting for the MRU-Process oder "Add-New-Line" Process that lets me reference this process to a specific region.
The problemm is, that after adding the second region to the page, the "Add-New-Line" - process only adds the new line to the second region and not to the first region anymore.
How can i make two processes where one adds a line to region1 and the second adds to region2. Same question is with updates too. How can i say that process on updates the changes in region1 and the other process updates the changes in region2 ?
Thanks for help.
greetings
bernd

Unfortunately, the builtin MRU process supports only 1 updatable region per page.

Multi Row Update for Tabular Form

1) I'm trying to understand how the built-in MRU works for tabular forms: While running through every row, does it check for changes before issuing an UPDATE or does it blindly UPDATE every row in the current pagination range?
2) If I need to write my own Multi Row Update process for tabular forms, could someone give me some tips on how to do that?
Thanks,
Pavel

1) It stored a checksum for each row that it renders. It calculates the checksum again before processing the rows. The UPDATE statement it issues has a predicate like where old_checksum!=new_checksumSo, it only updates the rows that have at least 1 column value that is different (causing the row checksum to be different)
2) See the howto at http://www.oracle.com/technology/products/database/application_express/howtos/tabular_form.html

Multi-Row Update form with wrapped fields

Hi,
I have a multi-row update form with too many fields to fit on the screen without having to scroll. Is it possible to wrap the extra fields onto a 2nd line.
So each DB record will actually span 2 srceen rows and fit nicely into my browser ??
Thanks for any help,
Brandon

It is possible, but would require some serious work on the report template, to create a custom row template.
I started to do this at http://htmldb.oracle.com/pls/otn/f?p=24317:191 but realized that it is hard work. Also, where would you show the headings for the second part of the row (split onto the next line)?
Instead, I would use the Show/Hide columns technique (client-side scripting) to reduce the number of columns shown. Search for it on this forum. Carl and I have some good examples out there.

Multi Row Update Error

Hello Everyone
I get the following error when attempting to perform a multi row update. Is anyone able to advise what the issue is?
Error in mru internal routine: ORA-20001: Error in MRU: row= 1, ORA-20001: ORA-20001: Current version of data in database has changed since user initiated update process. current checksum = "F71A42E70B86E7C8A14343633169264E", item checksum = "43A7146FE322237B683C4139D66E4DC5"., update "CSS_PRODUCTIVITY"."CENTREDATAASSOCIATIONS_TEST" set "MONTH" = :b1, "TM1_PREMISE_NAME" = :b2,

hi oolite
i can't help you with your problem
but i have one suggestion
i don't know whether you created your tabular form with the wizard or manually
when you use the wizard
i would suggest that you try to build a tabular form manully
in fact it is a little bit more work but i think all what you have done by yourself
is more transparent and errors should be found easier
other suggestions take a look
Error in mru internal routine: Error in MRU
Error in mru internal routine
or search for error on mru
sorry that i can't tell you more

About Multi Row Update...

APEX support Multi Row Update, but it is only support have two or fewer columns making up the primary key. now i want to use 3 columns as primary key to update datas, i how to implement it in APEX? thanks
· Table Owner: The schema name for the owner of the table.
· Table Name: Enter the table name or view. MRD’s and MRU’s can only dynamically build SQL statements for a single table or view.
· Primary Key Column: This is the first column of the primary key for the table. It is used for building the WHERE clause for the dynamic statement.
· Second Key Column: This is the column name for the second database column making up the primary key for the table. The MRU and MRD processes can only be used for tables that have two or fewer columns making up the primary key.
Edited by: user8016603 on 2011-3-14 上午1:51

check {message:id=9369070}

Need to perform multi-row update/delete

Gday,
I have a request to have one update button for a multi-row form. Also needed will be a checkbox as part of the row.
The check boxes only purpose is to signify the record should be deleted. Thus I am assuming I cannot use default
apex functionality and must manually build the multi-row form. I guess I would loop through and check to see if a
record is checked delete otherwise loop through and update all columns for that record? I am assuming I should
use the examples in http://www.oracle.com/technology/products/database/application_express/howtos/tabular_form.html
is that all still valid for apex 3.2.1?
Cheers

Hello:
You could also do the following
Generate the tabular form page using the wizard
Delete or not display the 'Delete' button
Delete or not execute the 'ApplyMRD' process
Create a new page process with a sequence higher than the standard MRU processes. Make this process conditional on the 'Submit' button. Use code similar to the one below for this page processfor i in 1..apex_application.g_f01.count loop --- f01 is the selector checbox, f02 is the hidden column with the table's PK
delete from emp where empno=apex_application.g_f02(apex_application.g_f01(i));
end loop;Now, when you click 'Submit' records with their selector checkbox checked will be deleted by the newly added page process. The rest of the functionality of the tabular form remains the same.
varad

Multi Row Update

I have a tabular form for multi row inserts, updates and deletes on one table.
I have a trigger that inserts the user name and sysdate when a new line is inserted. I am trying to do the same when a line is updated, but all lines are being updated.
Any pointers
Gus

Gus,
you will need to retrieve the primary key as a hidden field in your tabular form. you then use this promary key in your update triggers where clause to restrict to the current row.

Multi Row Update set fields disabled

Hi
I have a multi-row table and the functionality I need is when the user changes a value in a drop down list it either enables or disables certain fields.
I have set the depends on value for my fields to the drop down list and checked the clear/refresh box. On each field I have tried
#{bindings.dropdown.inputValue=='codeA'} and also
#{row.dropdown=='codeA'}
Each of these work as when the form is first loaded and the first row selected, the correct fields are disabled. However if I add a new row or change the dropdown, nothing happens.
Any ideas?
Thanks
Rich

Steven,
I have tried this. It simply adds in row.MyList. Here is the field that in generates
<af:selectOneChoice id="MinimumEntryFtTerritoryCode" value="#{row.FtTerritoryCode}"
partialTriggers = "MinimumEntryMetCode" required="#{(bindings.MinimumEntryFtTerritoryCode.mandatory) and (!MinimumEntryCollectionModel.newRow)}" readOnly="#{!(data.StudentsPageDef.StudentsCustomerStatus.inputValue=='ACTIVE')}" disabled="#{row.MetCode!='PRE_ASS'}" valign="top">
<af:selectItem value="" label="" rendered="#{!((bindings.MinimumEntryFtTerritoryCode.mandatory) and (!MinimumEntryCollectionModel.newRow))}" />

<af:forEach var="row2" items="#{bindings.FndTerritoriesVOLookup.rangeSet}" >
<af:selectItem label="#{row2.TerritoryShortName}" value="#{row2.TerritoryCode}"/>
</af:forEach>

</af:selectOneChoice>
It all looks like it should work but when I change MetCode in the list, everything stays disabled.
Cheers
Rich

Built-In Multi Row Update - Error on 9i but not 10g

Hello,
I've just moved my application from APEX 2.0 on Oracle 10g to APEX 2.0 on Oracle 9i and now when the MRU process for a Tabular Form runs, I get this error:
Error in mru internal routine: ORA-20001: Error in MRU: row= 0, ORA-20001: ORA-20001: Current version of data in database has changed since user initiated update process. current checksum = "34F541D6AF533308E50C1F36D78F72DD", item checksum = "A884FA308C851783DDFE3A33709CB23C"., update "PAVEL_TEST_SCHEMA"."MYTABLE" set
The data is not changing between the time I load the form and the time the MRU runs, I know that for a fact, so it must be something else. What could it be?
Thanks,
Pavel

I've just discovered that no tables on this schema are being used. Instead, there are synonyms for the tables. That's probably what causes the problem. Is there a reasonable workaround?
Thanks,
Pavel

Not executing multi row update

Good Morning,
I have a tabular form with MRU and MRD, the MRD works fine but when i try to insert or update nothing happend. I already tried to change and set no conditions for the process, the activation buttons are the standard from the tabular form.
Any ideas?
Thanks,
Alan.

I'm having a problem to post the reply, a message Sorry, this content is not allowed show up, as i can understand some word is not allowed so i must "debug" de message in parts. (the word was shoe_s, lol?)
I see your tabular form is operating on a view:PROPOSTA_GRADE_FECHADA_PV_V
? Is that right? >
Yes, right.
Is there an instead of trigger? @Sohil Bhavsar here is the magic :D
Yes, the trigger instead of activate a Procedure on a Package that insert/update/delete the records.
Is this view combining data from multiple tables? Yes, it is.
What is the SQL of the view? Its a normal view, i guess it isn't related directly to it, because the data that is returned is right and the insert/update/delete are done at the package. (and i think wouldnt be cool to show the view :) )
The construct you have there is funny. Using PL/SQL like this: is a bad practice. You should use: Sorry about that, i'm learning from my own and i don't know exactly the best practices. Noted, when i got in the company i'll change.
Also, you have dozens of hidden and conditional items on the page just for one tabular form with conditions like this: I need to create the scenario.
There is a table that holds the size of the product and another that hold its sequence, so each of the items has a function that takes the id of the size and the sequence number (fix value) to return the "true size" of the product. Witch is printed trough AJAX after you select one value of the select list.
The tabular form header of the QTD_ fields is:
<script> document.write($v("P12_TAM_(fix value 1..25")); </script>
I know this is far away from good practices, but it works
I think that's all.
Sorry for the long post.
Best Regards,
Alan.
Edited by: Alan Martini on 22/02/2011 07:33

Multi row update not occuring

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