Master detail view with drill down

I am trying to develop a simple app for my Ipad. This app is supposed to have a Master/details look and should behave similar to the native Mail app (2x levels of navigation and the last level updates the details view).
My problem is that I am not familiar to Apple IOS development so tend to get stuck all the time so I prefer to follow a tutorial or start with a sample project. I have searched for hours but I always either get a pure navigation drill down project without the details view or a pure master/details project with only a single level of navigation. I tried to take these projects and modify them but my knowledge sadly is very limited and I did not succeed.
So can anybody direct me to a tutorial or a sample project where a Mail like app is being built with more than 1 level of navigation ?

I have a GridBagLayout panel with a jtable and some jtextfield Well, we don't know exactly what constraints you have set up to its hard to say exactly why its happening.
In general, you should create your JTextField using new JTextField(int) and I think the problem will go away.
An easier solution would also be to use different LayoutManagers to achieve the desired layout.

Similar Messages

Problem in Viewer with drill down, Working fine in Plus

Hi,
I am using the cross tab reports with drill down functionality. In the viewer version I am getting the following error:
An error occurred while handling the event. See the application log for more details.
- The numerical value entered was too low.
This one working fine in Plus. .
As for your information this one is working fine in both plus and viewer in development instance and not working in PROD instance.
Please help me out.
thanks.

Update
Hi Guys the report is working fine with cross tab . Its giving the above error when ever I click the Drill to link which takes to the another detail report.
thanks in advance

Commit of master-detail view with database trigger on update

[ADF Jdev11 question]
My case is the following:
I have master form, with detail table attatched to it (using view link).
On update of master table, there is a database trigger which makes changes in the detail table.
As commit action commits both of the tables, as a result, I get the following exception:
"Another user has changed the row with primary key oracle.jbo.Key[000000002017 ]. "
Do you have any suggestions how can I fix this? Is there a way I can refresh the detail table just after the commit of the master table?
Marking the updated attributes with "refresh after update" doesn't help at all.

This trigger is on update of the master table and that is what it does:
BEGIN
UPDATE detail_table
SET smolotpr = :NEW.molotpr,
smolpol = :NEW.molpol,
spoluch = :NEW.poluch,
sotpr = :NEW.otpr,
SMAKET = :NEW.MAKET,
sdata_period = :NEW.data_period
WHERE doknom = :NEW.doknom;
END;
Setting the updated attributes "Refresh after update+insert" to true doesn't help at all (maybe because they are in another table)!
I will be very grateful if you give me any ideas, advice or give the complete solution!

3 Levels Master Detail View Object with Java class interface

Hi Developers,
I've created 3 tables with one to many relations as below
BOARD ------<- APPLICANT ------<- QUALIFICATION
a board includes many applicants and an applicant includes many qualifications.
When I add these tables to a Fusion Project, JDeveloper 11g helps me to add the Entity Links and View Associations automatically.
Then, I defined these relations in an ApplicantModule's Data Model as below.
[+] BoardVO1
      |
      |--[+] ApplicantVO1
               |
               |--[+] QualificationVO1The problem is: I cannot write any function in QualificationVO and publish it by client interface.
I created a simple function with a single line (System.out.println(...) ) in QualificationVOImpl.java. and selected it in Client Interface. But when I execute it from the ApplicantionModel for testing, an oracle.jbo.NoObjException JBO-25003 is raised. with message: Object ... ApplicantVO1 of type ApplicationModule not found.
Has anyone tried to implement some coding in the third level of a master details view structure as my example? How do you make it works?
I'm using JDeveloper 11.1.1.3 with ADF BC.
Regards,
Samson Fu

Samson,
Looks like a bug (probably with the application module tester). I created your tables:
create table board(board_id number primary key not null);
create table applicant(applicant_id number primary key not null, board_id number not null);
create table qualification(qualification_id number primary key not null, aplicant_id number not null);
alter table applicant add a_fk foreign key(board_id) references board;
alter table qualification add q_fk foreign key(aplicant_id) references applicant;I created a JDev project and got the same results. I've e-mailed a test case off to Frank.
Frank - the method is indeed exposed on the VO instance, and I tried testing that way, but the AM tester gives the error as if it is looking for an AM instance with the VO's name.
John

Performance Problem with Master-Detail Views

Hi,
I have developed a JSP-Applikcation with the master-detail views.
I would like to report a bad performance at fetching data records from the detail view, because all records
from master view have firstly to be retrieved to locate right row (rangesize="-1"). The number of records in
the master table ist 2500 and 7000 in detail table.
============= Code Snippets (See HOWTO:Navigate using Data Tags of J. Oropeza) =====
<jbo:DataSource id="dsMaster appid=testAppId viewobject="MaterView" rangesize="-1">
<jbo:RefreshDataSource datasource="dsMaster">
<jbo:Row id="msRow" datasource="dsMaster" action="Find" rowkeyparam="RowkeyValue">
<jbo:dataSource id="dsDetail" appid="testAppId viewobject="DetailView">
======================================================================
When rangesize="20" sets, performance is good, but the right row location of master view ist not found if the row
is not positoned in this range (No data from detail view object are displayed).
How can I improve the performance?
Many thanks for your help.
regards,
Yoo

Sung:
Thank you for your suggestion.
According to your suggestion I have changed my BC4J/JSP-application. However, the performance ist still bad.Whenn I click on a row retrieved from the master view, it takes 15 seconds until the associated data in detail view will be displayed on the other window (The application has been deployed on the test system of ISP).
In an other case with much less data (162 master and 228 detail rows), it takes only 2 seconds (The application
goes with the local server and DB of our company).
======================== master.jsp =================================
<jbo:DataSource id="dsMaster appid=testAppId viewobject="MaterView" >
<a href="detail.jsp?RowKeyValue=<jbo:ShowValue datasource="dsMaster" dataitem="RowKey"/>">
Here Click
</a>
======================== detail.jsp ======================================
<jbo:DataSource id="dsMaster appid=testAppId viewobject="MaterView">
<jbo:RefreshDataSource datasource="dsMaster">
<jbo:Row id="msRow" datasource="dsMaster" action="Find" rowkeyparam="RowkeyValue">
<jbo:dataSource id="dsDetail" appid="testAppId viewobject="DetailView">
How do you think of this coding (My application is based on the document How to of J. Oropeza)?
How can I increase the performance independently of the number of rows?
Many thanks for your help.
regards,
Yoo

Detail view with bind variable. TreeTable not showing all detail result.

I’m having trouble with treeTable using detail view with bind variables and where clause defined in VO definition.
Both, master and detail view objects, base on the same entity and have the same condition in where clause. The view objects also have bind variables, which are set in prepareRowSetForQuery() method.
Again, these are two different views, that get different result, based on value of one of the bind variable.
When I show results in two different tables on jsf page, where master table has "RowSelection" set on "single", all results are displayed in detail table.
But when I use treeTable, only the first result of the detail is shown.

I tested it in applicationModule and it works, but i think that's the same as two tables on a jsf page.
This is the order in which overridden methods are called in ADF BC or two tables on jsf page
when clicking on row in master table.
PrepareRowSetForQueryDetail
executeQueryForCollection_Detail user param: 2
   Object 2: class [Ljava.lang.Object; -> print of the object2[] parameter in executeQueryForCollection
     List 0: Bind_ChildId -> viewLink parameter
     List 1: 400035313 -> viewLink parameter value
getEstimatedRowCount_Detail
count: 2
getEstimatedRowCount_Detail
count: 2 And when i click on "expand node" in tree table:
getEstimatedRowCount_Root
count: 2
PrepareRowSetForQuery_Detail
executeQueryForCollection_Detail user param: 2
   Object 2: class [Ljava.lang.Object;
     List 0: Bind_ChildId -> viewLink parameter
     List 1: 400035321
PrepareRowSetForQueryDetail
executeQueryForCollection_Detail user param: 2
   Object 2: class [Ljava.lang.Object;
     List 0: Bind_ChildId -> viewLink parameter
     List 1: 400035313
getEstimatedRowCount_Root
count: 2
getEstimatedRowCount_Root
count: 2
getEstimatedRowCount_Root
count: 2
PrepareRowSetForQueryDetail
executeQueryForCollection_Detail user param: 2
   Object 2: class [Ljava.lang.Object;
     List 0: Bind_ChildId -> viewLink parameter
     List 1: 400035313
PrepareRowSetForQueryDetail
executeQueryForCollection_Detail user param: 2
   Object 2: class [Ljava.lang.Object;
     List 0: Bind_ChildId -> viewLink parameter
     List 1: 400035321
getEstimatedRowCount_Root
count: 2
getEstimatedRowCount_Root
count: 2Values of user parameters are OK. Is there another method that i should override?
I also noticed, that if detail view doesn't have user bind variables, the tree works fine and is shown even in ADF BC (aplication module).
I guess we loose a tree, when using bind variables in detail view object.
Is there a way around it?

Calendar with Drill Down Report

Hello,
Everybody.
I am new to Application Express.
Please any one tell me step by step how to make calendar with drill down report.
Waiting for valuable reply.
Thanks
Rahul

Not sure if this is what you wanted, but I have links on a calendar, and when you click them, it branches to another page with details about the event.
To do this, create a calendar region. The SQL statement should have at least 2 columns: The date of the "event", and the text to display as a link. You should also choose a primary key that you want to pass to the drill down report when the user clicks. Something like this:
select hiredate date_scheduled,
          ename display_column,
          empno
   from empIn the calendar attributes of that region, there is a place to designate which column is the date, and which should be displayed. Go down a little further and set the column link. Put the page you want to show the drilldown report on, and set any variables you need to.
Hopefully that helped. Its pretty simple once you play around with it - start simple and then once you get the hang of it, make it more complex.

Problem with drill down in time dimension - OBIEE 11G

Hello There,
I have a problem with drill down in time dimension. The hierarchy for time dimension is " Fiscal Year---> Fiscal Quarter---> Month(Name)--->Date". When I select a Time dimension and click results its getting opened in a Pivot table view. The problem here is, when I click the "Total" its getting drilled down to Year ---> Quarter but when I click on "+ sign next to quarter" it should drill down to month for that particular quarter for that particular year but its drilling down to month for that particular quarter for all years.
Any suggestions are much appreciated.
Thanks,
Harry.

1.) Congrats for resurrecting a year-old thread.
2.) Your answer is here: "Check the level key of the quarter level...it should include both quarter and year columns. Since a specific quarter occurs every year, quarter column alone can't be used as the level key."

Suppressing sub-section with drill down OK

This may be an easy one that I just cannot figure out (I hope...).
I have created two details sections - details A and details B. I would like to suppress details section B while still allowing for drill down capabilities. However, that option is not available. I can either suppress the entire details section (A and B) with drill down capabilities or suppress either A OR B with no drill down capabilities.
Any and all help would be truly appreciated!!

I can only think of using an on demand subreport which sits in Details b. but the row and the SR lable will be visible for all records.
Ian

Date validation in a master/detail view

Hi everyone,
I have a problem and I hope someone can help me. I'm trying to create a validation for my application. I have a Master/Detail view where I add rows to my database and in the rows there is a "from date" and "to date". I want to create a validation so that the "from date" can not be chosen before the current date.
I'm having trouble because most of the tutorials I read on this work with page items, but since I have this in a Master/Detail view I have Column Attributes, wich do not behave the same way as page items.
Any help would be very appreciated.
Thanks,
Luka

I'm still having quite some trouble with this... everything I try gives me some sort of error.
My latest attempt was to make a PL/SQL returning boolean validation with the code:
FOR i IN 1..APEX_APPLICATION.G_F10.COUNT LOOP
IF DATUM_OD(APEX_APPLICATION.G_F10(i), 'DD.MM.YYYY HH24:MI') < SYSDATE THEN
return true;
else
return false;
END IF;
END LOOP;
and it says:
Error processing validation.
ORA-06550: line 2, column 4: PLS-00201: identifier 'DATUM_OD' must be declared ORA-06550: line 2, column 1: PL/SQL: Statement ignored

Problem occured when create a tree table for master-detail view objects using SQL queries?

I am programming a tree table for master-detail view objects using SQL queries and these 2 view objects are not simple singel tables queries, and 2 complex SQL are prepared for master and view objects. see below:
1. Master View object (key attribute is SourceBlock and some varaible bindings are used for this view object.)
SELECT cntr_list.SOURCE_BLOCK,
        sum(
         case when cntr_list.cntr_size_q = '20'
              then cntr_list.cntr_qty
              else 0 end ) as cntr20 ,
        sum(
         case when cntr_list.cntr_size_q = '40'
              then cntr_list.cntr_qty
              else 0 end ) as cntr40 ,
         sum(
         case when cntr_list.cntr_size_q = '45'
              then cntr_list.cntr_qty
              else 0 end ) as cntr45
FROM (
    SELECT yb1.BLOCK_M as SOURCE_BLOCK,
           scn.CNTR_SIZE_Q,
           count(scn.CNTR_SIZE_Q) AS cntr_qty
    FROM SHIFT_CMR scm, SHIFT_CNTR scn, YARD_BLOCK yb1, YARD_BLOCK yb2
    WHERE
    scm.cmr_n = scn.cmr_n
    AND (scm.plan_start_dt BETWEEN to_date(:DateFrom,'YYYY/MM/DD HH24:MI:SS') AND to_date(:DateTo,'YYYY/MM/DD HH24:MI:SS')
    OR scm.plan_end_dt BETWEEN to_date(:DateFrom,'YYYY/MM/DD HH24:MI:SS') AND to_date(:DateTo,'YYYY/MM/DD HH24:MI:SS'))
    AND scm.shift_mode_c = :ShiftModeCode
    AND scm.end_terminal_c = :TerminalCode
    AND scm.start_terminal_c = yb1.terminal_c
    AND scm.start_block_n = yb1.block_n
    AND substr(scn.start_location_c,(instr(scn.start_location_c,',',1,5)+1),instr(scn.start_location_c,',',1,6)-(instr(scn.start_location_c,',',1,5)+1)) BETWEEN yb1.slot_from_n AND yb1.slot_to_n
    AND scm.end_terminal_c = yb2.terminal_c
    AND scm.end_block_n = yb2.block_n
    AND substr(scn.end_location_c,(instr(scn.end_location_c,',',1,5)+1),instr(scn.end_location_c,',',1,6)-(instr(scn.end_location_c,',',1,5)+1)) BETWEEN yb2.slot_from_n AND yb2.slot_to_n
    AND scn.status_c not in (1, 11)
    AND scn.shift_type_c = 'V'
    AND scn.source_c = 'S'
    GROUP BY yb1.BLOCK_M, scn.CNTR_SIZE_Q
) cntr_list
GROUP BY cntr_list.SOURCE_BLOCK
2. Detail View object (key attributes are SourceBlock and EndBlock and same varaible bindings are used for this view object.)
SELECT cntr_list.SOURCE_BLOCK, cntr_list.END_BLOCK,
        sum(
         case when cntr_list.cntr_size_q = '20'
              then cntr_list.cntr_qty
              else 0 end ) as cntr20 ,
        sum(
         case when cntr_list.cntr_size_q = '40'
              then cntr_list.cntr_qty
              else 0 end ) as cntr40 ,
         sum(
         case when cntr_list.cntr_size_q = '45'
              then cntr_list.cntr_qty
              else 0 end ) as cntr45
FROM (
    SELECT yb1.BLOCK_M as SOURCE_BLOCK,
           yb2.BLOCK_M as END_BLOCK,
           scn.CNTR_SIZE_Q,
           count(scn.CNTR_SIZE_Q) AS cntr_qty
    FROM SHIFT_CMR scm, SHIFT_CNTR scn, YARD_BLOCK yb1, YARD_BLOCK yb2
    WHERE
    scm.cmr_n = scn.cmr_n
    AND (scm.plan_start_dt BETWEEN to_date(:DateFrom,'YYYY/MM/DD HH24:MI:SS') AND to_date(:DateTo,'YYYY/MM/DD HH24:MI:SS')
    OR scm.plan_end_dt BETWEEN to_date(:DateFrom,'YYYY/MM/DD HH24:MI:SS') AND to_date(:DateTo,'YYYY/MM/DD HH24:MI:SS'))
    AND scm.shift_mode_c = :ShiftModeCode
    AND scm.end_terminal_c = :TerminalCode
    AND scm.start_terminal_c = yb1.terminal_c
    AND scm.start_block_n = yb1.block_n
    AND substr(scn.start_location_c,(instr(scn.start_location_c,',',1,5)+1),instr(scn.start_location_c,',',1,6)-(instr(scn.start_location_c,',',1,5)+1)) BETWEEN yb1.slot_from_n AND yb1.slot_to_n
    AND scm.end_terminal_c = yb2.terminal_c
    AND scm.end_block_n = yb2.block_n
    AND substr(scn.end_location_c,(instr(scn.end_location_c,',',1,5)+1),instr(scn.end_location_c,',',1,6)-(instr(scn.end_location_c,',',1,5)+1)) BETWEEN yb2.slot_from_n AND yb2.slot_to_n
    AND scn.status_c not in (1, 11)
    AND scn.shift_type_c = 'V'
    AND scn.source_c = 'S'
    GROUP BY yb1.BLOCK_M, yb2.BLOCK_M, scn.CNTR_SIZE_Q
) cntr_list
GROUP BY cntr_list.SOURCE_BLOCK, cntr_list.END_BLOCK
3. I create a view link to create master-detail relationship for these 2 view objects.
masterview.SourceBlock (1)->detailview.SourceBlock (*).
4. I create a tree table using these 2 view objects with master-detail relationship.
When I set default value for variable bindings of these 2 view objects and the matching records exist, tree table can work well. I can expand the master row to display detail row in UI.
But I need to pass in dymamic parameter value for variable bindings of these 2 view objects, tree table cannnot work again. when I expand the master row and no detail row are displayed in UI.
I am sure that I pass in correct parameter value for master/detail view objects and matching records exist.
Managed Bean:
        DCIteratorBinding dc = (DCIteratorBinding)evaluteEL("#{bindings.MasterView1Iterator}");
        ViewObject vo = dc.getViewObject();
        System.out.println("Before MasterView1Iterator vo.getEstimatedRowCount()="+ vo.getEstimatedRowCount());
        System.out.println("Before MasterView1Iterator ShiftModeCode="+ vo.ensureVariableManager().getVariableValue("ShiftModeCode"));
        vo.ensureVariableManager().setVariableValue("DateFrom", dateFrom);
        vo.ensureVariableManager().setVariableValue("DateTo", dateTo);
        vo.ensureVariableManager().setVariableValue("ShiftModeCode", shiftModeC);
        vo.ensureVariableManager().setVariableValue("TerminalCode", terminalCode);
        vo.executeQuery();
        System.out.println("MasterView1Iterator vo.getEstimatedRowCount()="+ vo.getEstimatedRowCount());
        DCIteratorBinding dc1 = (DCIteratorBinding)evaluteEL("#{bindings.DetailView1Iterator}");
        ViewObject vo1 = dc1.getViewObject();
        System.out.println("Before DetailView1Iterator vo1.getEstimatedRowCount()="+ vo1.getEstimatedRowCount());
        System.out.println("Before DetailView1Iterator ShiftModeCode="+ vo1.ensureVariableManager().getVariableValue("ShiftModeCode"));
        vo1.ensureVariableManager().setVariableValue("DateFrom", dateFrom);
        vo1.ensureVariableManager().setVariableValue("DateTo", dateTo);
        vo1.ensureVariableManager().setVariableValue("ShiftModeCode", shiftModeC);
        vo1.ensureVariableManager().setVariableValue("TerminalCode", terminalCode);
        vo1.executeQuery();
        System.out.println("after DetailView1Iterator vo1.getEstimatedRowCount()="+ vo1.getEstimatedRowCount());
5. What's wrong in my implementation? I don't have no problem to implement such a tree table if using simple master-detail tables view object, but now I have to use such 2 view objects using complex SQL for my requirement and variable bindings are necessary for detail view object although I also think a bit strange by myself.

Hi Frank,
Thank you and it can work.
public void setLowHighSalaryRangeForDetailEmployeesAccessorViewObject(Number lowSalary,
                                                                          Number highSalary) {
        Row r = getCurrentRow();
        if (r != null) {
            RowSet rs = (RowSet)r.getAttribute("EmpView");
            if (rs != null) {
                ViewObject accessorVO = rs.getViewObject();
                accessorVO.setNamedWhereClauseParam("LowSalary", lowSalary);
                accessorVO.setNamedWhereClauseParam("HighSalary", highSalary);
            executeQuery();
but I have a quesiton in this way. in code snippet, it is first getting current row of current master VO to determine if update variables value of detail VO. in my case, current row is possibly null after executeQuery() of master VO and I have to change current row manually like below.
any idea?
            DCIteratorBinding dc = (DCIteratorBinding)ADFUtil.evaluateEL("#{bindings.SSForecastSourceBlockView1Iterator}");
            ViewObject vo = dc.getViewObject();
            vo.ensureVariableManager().setVariableValue("DateFrom", dateFrom);
            vo.ensureVariableManager().setVariableValue("DateTo", dateTo);
            vo.ensureVariableManager().setVariableValue("ShiftModeCode", shiftModeC);
            vo.ensureVariableManager().setVariableValue("TerminalCode", terminalCode);
            vo.executeQuery();
            vo.setCurrentRowAtRangeIndex(0);
            ((SSForecastSourceBlockViewImpl)vo).synchornizeAccessorVOVariableValues();

ADFBC JTree Master-Detail view

Hello, I am using Jdeveloper 10.1.3.3. with ADFBC.
I have table ORGUNIT with following fields:
1. ID_ORGUNIT
2. NAME
3. ID_PARENT_ORGUNIT
I have created Entity and View for this table, and ViewLink which is used for fields ID_ORGUNIT and ID_PARENT_ORGUNIT.
In short, I am trying to create JTree which contains data about organizational units.
Let's say these are my data:
1. "ADM" "ADMINISTRATION" "NULL"
2. "FIN" "FINANCING DEPARTMENT" "NULL"
3. "FIN1" "FINANCING DEPARTMENT - XXX" "NULL"
4. "FIN2" "FINANCING DEPARTMENT - YYY" "NULL"
5. "DEV" "DEVELOPMENT DEPARTMENT" "NULL"
So, I want to use JTree to create hierarchy:
ADM
I--FIN
I I--FIN1
I I--FIN2
I
I--DEV
The problem is, when I create view link previously described...I get all data from view with their descendants...
ADM
I--FIN
I I--FIN1
I I--FIN2
I
I--DEV
FIN
I--FIN1
I--FIN2
FIN1
FIN2
DEV
Can anyone help me? What could be the problem?

Hi John,
Thank you for your assistance.
Just to confirm the details of what I have.
Master VO: CustomerVO (based on customer table) correct!>Child VO: A VO based on a join between preferences and customer_preferences. (i.e. base your VO on two EO's) correct!what I have is a customer VO based on a customer EO, a customer_preferencesVO based on a customer_preferencesEO and a preferencesVO based on a preferencesEO.
View links exist between customerVO and customer_preferencesVO and again between preferences and customer_preferences thus facilitating a many-to-many relationship.
so what I'm trying to do is construct a master detail view between customers and preferences . I figured that in order to achieve this I would need to create two new VO instances, one for customers and one for preferences and then to probable use a statement in the where clause so that only preferences are returned for customers on the current row where a relationship exist via the customer_preverencesVO.
This is where I'm struggling in understanding how best to implement this.
All I want is a mechanism whereby when I come to use a tree view component in my UI model I will have a node that will display preferences.
Thanks again,
Gary

Can there be multiple Master Detail Views, if yes then how? Please suggest

Dear All,
In first master-detail view, I have a button, which when clicked will trigger the second detail view.
I tried invoking second master detail view but was not able to see the second master view. Could you please guide as to how to go about this.
Thanks.

Do a Google search. Here's one link.
http://mobiforge.com/developing/story/developing-split-view-based-apps-ipad
 Cheers, Tom

Exporting a Report to a pdf file with drill down!

Hi,
I would like to export a Report to a pdf file.
My Report includes drill down options. I require the exported pdf with drill down options.
(Similar to Navigation options in a PDF file).
I hope this makes sense.
Please provide a better solution for me.
If am not wrong, this facility is not available with Crystal Reports!!!
Thanks,
Ramesh.

Hi Ramesh
You can download the trial versions of the Crystal Report from the following link:
https://websmp202.sap-ag.de/support (Please copy the link and paste it to your web browser).
You can get the license by putting a request in the follwoing link:
https://websmp202.sap-ag.de/support(Click on Request License key under Service Corner).
Hope it helps.
Regards
Sourashree Ghosh

Master Detail Form with Report - Referring a column in another table

I have master detail form with a report option. The master table has a column that also references a look up table.
When the report is displayed the lookup column id is displayed. Rather I want to get the look-up value from a lookup table
and display in the report.
When I see the report region Query definition , it just has the columns to add/remove only from the master table.
Could you pls help me with this regard.
Eg :
Dept Table
dept_id
dept_name
location_id
Employee Table
employee_id
employee_name
dept_id
location
location_id_id
location_name
Master is Dept, Detail is dept and lookup table is location.

Simply add the lookup table to the FROM clause and join its PK with the FK in the master table in your query. That's basic SQL, and you definitely must get a good grasp of SQL to do more than very basic work in APEX.
For a good example, please see http://download.oracle.com/docs/cd/E10513_01/doc/appdev.310/e10498/build_app.htm#BCEBJJGB
While you're at it, read and implement the tasks outlined in the 2 Day + Application Express Developer's Guide - http://download.oracle.com/docs/cd/E10513_01/doc/appdev.310/e10498/toc.htm. After that, read the "Oracle Application Express 3.0-- Building a Functional Application" OBE in http://www.oracle.com/technology/obe/apex/obe30/apexdev30.htm - great stuff.
Georger

Master detail view with drill down

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