Master-Details form - integrity constraint

Hi,
I have created a simple master-detail form. Master block is based on say Table1 with 2 columns and detail block is based on Table2 with 4 columns.
When I am trying to create records using this form, I enter data in the Master block and then navigate to the detail block and then enter data. When I press the save button,
the form throws error message "ORA-02291: integrity constraint (APPS.FK_RECORD_IDENTIFIER) violated - parent key not found"
When I check the query using Help->Diagnostics->display database error, the insert statement is insert into table2 values (......
I guess, the form is trying to insert data into table2 first. Since there is no corresponding entry in Table1, hence the error. What should be done, so that the form inserts Master block data into table1 first before attempting to insert data into detail block.
Regards
Suresh

Suresh,
In the Object Navigator view, check the block order under the Data Blocks section. The Master Block should come first, and then only the detail should come. If its is not like that, then change the order of the blocks by dragging the master block to top of the blocks.
Regards,
Manu.
If my response or the response of another was helpful or Correct, please mark it accordingly

Similar Messages

Master detail form - Cascade Delete gives error

I am using 3.0.9.8.2 and have made a master detail form which works fine except for cascade delete. Insert and update works well, but I have to delete the child rows first to be able to delete the parent.
"Cascade Delete Detail Rows on Master Delete" is checked.
Error situation 1 (where the master just has one child row (number of detail rows to be displayed = 2)):
When trying master action=delete I get:
Error: No conversion performed for type INTEGER, value . (WWC-49102)
This happens whatever is chosen from the detail action drop down list during the attempted delete.
Error situation 2 (where the master has two child rows (number of detail rows to be displayed = 2)):
When trying master action=delete I get:
Error: An unexpected error occurred: ORA-02292: integrity constraint (MILLS_PORTAL.TEX_ACCOUNTS_FK) violated - child record found (WWV-16016)
This also happens whatever is chosen from the detail action drop down list.

Sorry to say, but this is a bug which will get fixed in the forth coming releases.
Till then, there are 2 ways to avoid this problem:-
1> The change the foreign key in the detail table to have an ON DELETE CASCADE clause.
2> (Though not desirable, but still as a workaround)- Drop the foreign key constraint from the detail table.

Master-Detail Form - implementing some thing like Post-Query trigger

Hi all,
I am struggling to implement an eqivalent of a post-query trigger in Oracle Forms. Please bear with me as I am trying to explain in detail what the problem is.
Here is my situation.
I have three tables EMP, DEPT and LOCATION. I created a Master/Table pages on EMP and DEPT.
Basic relationships.
Each LOCATION has one or more DEPTs; Each DEPT is at one and only one LOCATION.
Each DEPT has one ore more EMPs; Each EMP is assigned to only and only DEPT.
Not getting too complicated, here are the table layouts:
LOCATION:
ID number(10,0) not null,
NAME varchar2(20) not null
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ID number(10,0) not null,
NAME varchar2(20) not null,
LOC_ID number (10,0) not null foreign key from LOCATION
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ID number(10,0) not null,
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you to change the query, I was able to add the Location Name as part of the
query. This was very simple.
Select a.name "Department_Name",
b.name "Location"
from dept a, location b
where a.loc_id = b.id
Moving on, In the Master Detail Form, I would like to get the Location Name as part of the first Region (Dept Region).
In this region, I would like to include the Location Name also. So my first region on the Master Detail form includes:
Dept Id: ________
Dept Name: _______
Location Name: __________
As Region are automatically populated using using a Fetch Row from EMP table (Automated Row Fetch) on an After Header process point, I don't have a way of including the Location as part of query. So I created a Region level Item called Location Name, made it Display only.
In the old SQL*Forms, or Oracle Forms days, I used to use a Post-Query trigger, or Post-Change trigger to fire on the Loc_Id column to populate the Location Name. Simple fetch like:
Select name
into :P80_location_name
from location
where loc_id = :P80_loc_id
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I have seen some previous responses to fetching values from a foreign table
using a button or AJAX script, but this should be very basic. What am I
missing here?
Appreciate any insights.
Thanks.
John

Hi John,
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select Name d, ID r
from LOCATION
order by 1
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Click Apply Changes to save the settings.
When you run the pages now, the Location Name field will appear as Read-Only when editing a selected Master row. The item will appear as a Select List when the user clicks "Create" on the Master page, to create a new Master row.
I hope this helps.
Regards,
Hilary

Master-Detail Form in Form6i Developer

First of All Hi to all Respected Gurus.
I am stuck in a very basic element and that is Primary-Key/Foreign-Key relation. I am trying to create a Master-Detail Form based on following structure. Records in Master Table and Child Table are saving (inserting) but Primary Key of Master Table is not saving (inserting) as "Foreign Key" in Detail Table.
Here is Table Structure(s)
Master Table Name : MGTC_EDM
CREATE TABLE MGTC_EDM
EDM_ID NUMBER, -- PRIMARY KEY
BILLING_DATE DATE,
CONSTRAINT PK_MGTCEDM_EDMID PRIMARY KEY (EDM_ID)
CHILD TABLE : MGTC_EDD
CREATE TABLE MGTC_EDD
EDD_ID NUMBER; -- PRIMARY KEY
EDM_ID NUMBER; -- FOREIGN KEY RELATION WITH MGTC_EDM
MEM_ID NUMBER;
AMOUNT NUMBER;
CONSTRAINT PK_MGTCEDD_EDDID PRIMARY KEY (EDD_ID),
CONSTRAINT FK_MGTCEDD_EDMID FOREIGN KEY (EDM_ID)
REFERENCES MGTC_EDM (EDM_ID)
TRIGGER OF "BEFORE_INSERT" IS APPLIED ON BOTH TABLES TO AUTO-POPULATE INCREMENTAL ID
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AND THERE ARE NO MORE TRIGGERS IN THE FORM.
AS CURSOR MOVES TOWARDS DETAIL BLOCK, RECORD IN MASTER TABLE SAVES (COMMITTED) ON AUTO AND WHEN I PRESS "SAVE" BUTTON TO SAVE THE RECORD IN CHILD FORM DETAIL TABLE ALSO COMMITTED
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PLEASE HELP.

Dear Mr. O.Developer, Many thanks for your reply.
Yes, I've created relationship. Relationship exist in Master_Block and below is the detail
Relationship Name = MGTC_EDM_MGT_EDD
Relation Type = Join
Detail Data Block = MGTC_EDD
Join Condition = MGTC_EDD.EDM_ID = MGTC_EDM.EDM_ID
Delete Record Behavior = Non Isolated
Prevent Masterless Operations = No
Deferred = No
Automatic Query = No

Master Detail Forms with 2 composite primary keys - Is there a workaround?

Hello All,
I have been searching for a workaround to the maximum 2 part primary key restriction on the multi-row updates, and master-detail forms, and am hoping that someone can help me. I am using HTMLDB v2.0.0.00.49 with IE 6 against a 9.2 DB.
I successfully implemented the workaround of Fred Stoopendaal's (see Updata PK on HTML DB ) and it works fine for single page multi-record updateable forms, but alas I haven't been able to extend it to master detail forms (I think it is something to do with Oracle not allowing the "returning" clause on views).
Here is what I tried:
two tables, one with a 2 part composite primary key, which is the master table, and a detail table with 3 part composite primary key -
--------- BEGIN SQL ---------
create table master_table
( master_col1 number
, master_col2 number
, master_col3 varchar2(30)
, constraint master_pk primary key (master_col1,master_col2));
create table detail_table
(detail_col1 number
,detail_col2 number
,detail_col3 number
,detail_col4 varchar2(30)
, constraint detail_pk primary key(detail_col1,detail_col2,detail_col3)
, constraint master_detail_fk foreign key (detail_col1,detail_col2) references master_table(master_col1,master_col2));
create or replace view v_master_table as
select rowid mata_rowid,mata.*
from master_table mata;
create or replace view v_detail_table as
select rowid deta_rowid,
(select rowid from master_table mata where mata.master_col1 = deta.detail_col1 and mata.master_col2 = deta.detail_col2) deta_mata_rowid
, deta.*
from detail_table deta;
create or replace trigger mata_ins_upd_trg
instead of insert or update on v_master_table
referencing new as new old as old
for each row
begin
if inserting then
insert into master_table (master_col1, master_col2, master_col3)
values (:new.master_col1, :new.master_col2, :new.master_col3);
end if;
if updating then
update master_table
set master_col1 = :new.master_col1,
master_col2 = :new.master_col2,
master_col3 = :new.master_col3
where rowid = :old.mata_rowid;
end if;
end;
create or replace trigger deta_ins_upd_trg
instead of insert or update on v_detail_table
referencing new as new old as old
for each row
begin
if inserting then
insert into detail_table ( detail_col1, detail_col2, detail_col3, detail_col4)
values (:new.detail_col1, :new.detail_col2, :new.detail_col3, :new.detail_col4);
end if;
if updating then
update detail_table
set detail_col1 = :new.detail_col1,
detail_col2 = :new.detail_col2,
detail_col3 = :new.detail_col3,
detail_col4 = :new.detail_col4
where rowid = :old.deta_rowid;
end if;
end;
--------- END SQL ---------
Then I created a master-detail form in Apex on the two views, using the mata_rowid and deta_rowid as primary keys, and mata_rowid=deta_mata_rowid as the link. I realise that using a function to fetch the master rowid within the detail view query is costly, but it was my intention to modify the record fetch queries to use the real FK columns once things were up and running.
It seems to generate the pages ok, and I can insert/update master table records, but as soon as I modify records in the detail table things go a bit haywire. I can't find any documentation on how the inbuilt MRU/MRD logic works, so can't figure out the issue.
Can anyone out there tell me what the problem is with the logic above, or if they have come up with a neat solution to this annoying limitation. I know that many will say that I should modify the data model to use surrogate primary keys, but many of the uses for HTMLDB are new interfaces for old schemas, so a workaround that doesn't involve wholesale data model changes would be preferable.
Thanks in advance,
Mike Cretan

Hi, this is likely not the most elegant way...but perhaps the simplest -- and I didn't have much time to play.
I used Wizard to create two separate Master Detail forms, each with a separate detail table. Thus I ended up with four pages:
Page "A" - "Selector" page for Master (Report), with Edit link driving to Detail-1
Page "B" - Editable Master/Detail-1 page (HTML / Report)
Page "C" - "Selector" page for Master (Report), with Edit link driving to Detail-2
Page "D" - Editable Master/Detail-2 page (HTML / Report)
Then I selected the primary key column TWICE on the Report on Page A. Modified the second instance of this column to navigate to Page D (passing primary key) exactly the way the original instance of this column navigates to Page B. Then I deleted Page C.
Since you can have only one Tabular Entry form per page, this seemed the best way to drive two separate detail tables from a common interface.

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The steps I am following in View Option is as below:
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clear_block(no_validate);
execute_query;
proc_lov;
go_block('item');
execute_query;
I am unable to commit the changes made in the blocks
The reason it is showing is : UNABLE TO update.....I saw the display_error.
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To attach a RTF template(Report for printing ) in the master detail form

I have an application in which I have 3 master detail forms of which one of the form is a gate pass form . Now this gate pass form has a report region as the detail.
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Now I have created an RTF Template which is the Gate pass layout with the pic.
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Pars I need another Help
I am working with a master detail form where in the form region i have a Radio group . Lets say the Radio group is
o Returnable
o Non Returnable
o Other
so when i select Non returnable I want a particular column called
Line Status to get Disabled .
I have done that by a dynamic action - using jquery statement (.Disable) .
Defining the element attributes as Disable .
Now the problem is that ,, Line status is getting disabled on the selection of Non returnable radio button. but unless and until i dont press the Add row button it does not work ,, else i will have to switch over between the radio buttons to get this action done !!

Adding button to report to link to master detail form

I want to add a button to a report to direct me to a blank master detail form to insert a new record. I have used the following code in the additional PL/SQL code section:
htp.formopen('PORTAL30.wwa_app_module.new_instance?p_moduleid=1271601405');
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htp.formClose;
When I click this I get 'Page Not Found'.
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Hi,
Check this sample code.
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selection-screen function key 1.
selection-screen function key 2.
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sscrfields-functxt_02 = 'Exit'.
at selection-screen.
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Hi,
I noticed that when I created a new application in Apex 4.01 basing the intial page on a Master Detail form/report, I was able to add a search item to the initial page. When I go to add another page with a different Master detail form/report, I did not have any option for adding a search item to the report page. Seems like an oversight?
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Me too facing the some problem can some one pls help

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How do I set a bind variable in a Master Detail Form?

I suspect that he may have the same question I do. Namely, if I have four tables (employees, projects, tasks, and project_assignments) how do I create a master detail form where I can specify the project and the employee via LOVs? The project_assignments table contains foreign keys for employee, project, and task, as well as additional fields relating to the task status.
Currently, I have it set up so that the employee name can be selected and the project is hard coded to the current project.
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Requerying on Master Detail form

Hi,
Does anyone know how to set up PL/SQL code to automatically requery on a master detail form after insert/update? For example, if I insert a record on the master part of the form, I would like that record to automatically show up after the insert/update. Also, if I insert a record on the detail part of the form, I would like that record to automatically show up after an insert/update.
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Hi Krishnamurthy,
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Dear,
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Hello,
I have a master detail form with, each master record having a fixed(6) number of detail records. One of the fields in the detail record is the PART_DESCRIPTION field. I am trying to update this field by querying Table_X. TABLE_X is in the format of (desciption id, description). Description id runs from 1 to 6.
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Tried using session storage objects, but made no headway.
Would greatly appreciate pointers on how to go about doing this.
Thanks.
Dev

If you are on a Portal Version lesser than 3.0.9.8.3, then please try the following to populate
the PART_DESCRIPTION field.
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"...after displaying the page area" :-
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l_form_name varchar2(200);
l_form_state varchar2(500);
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l_form_name := p_session.get_module().get_name();
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Is there any demonstration or tips how to Insert record on master-details form for JPA/EJB 3.0 with ADF binding?

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You can just read the following section
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same way you can do for master - detail form.
for more information on forms please refer the following URL.
http://otn.oracle.com/products/iportal/htdocs/portal_faq.htm#BuildingApplications
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Master-Details form - integrity constraint

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