Create a dynamic view

Hi,
We have two schema's with exact same table TABLEXYZ (A.TABLEXYZ and B.TABLEXYZ).
Now we need to create a view (VIEW1) that reference either one of the schema's depending on a condition.
Example: If the datetime is between 1PM to 4PM, view should be pointing to schema A (select * from A.TABLEXYZ)
otherwise it should be pointing schema B (select * from B.TABLEXYZ)
Can you please advice how this can be archived?
Thanks!

Untested!!! (but check the query Assumed that the tables obey the rules of set operators, ymay use Union all this way.)
WITH t AS
        (SELECT a.*, 'Y' con FROM a.tablexyz
         UNION ALL
         SELECT b.*, 'N' FROM b.tablexyz)
SELECT *
FROM t
WHERE ( (con = 'Y' AND TO_NUMBER (TO_CHAR (SYSDATE, 'HH24')) BETWEEN 13 AND 17)
        OR (con = 'N'
            AND TO_NUMBER (TO_CHAR (SYSDATE, 'HH24')) NOT BETWEEN 13 AND 17));
OR
SELECT a.*
FROM a.tablexyz
WHERE TO_NUMBER (TO_CHAR (SYSDATE, 'HH24')) BETWEEN 13 AND 17
UNION ALL
SELECT b.*
FROM b.tablexyz
WHERE TO_NUMBER (TO_CHAR (SYSDATE, 'HH24')) NOT BETWEEN 13 AND 17
Cheers,
Manik.

Similar Messages

How to create a dynamic view

I have 5 tables
of which one table is transaction table which stores all the trasanctions
it has near about 30 colms
from which i need create a dynamic view...
where user have to passed 5, 6 parameters and get the result .
how can i create a precompiled view ..

Why do you want to create a dynamic view.
It's a bad practice. You had already all column names.
I think , you can simply create a static view in design time.

How to create dynamic View Object and Dynamic Table

Dear ll
I want to create a dynamic view object and display the output in a dynamic table on the page.
I am using Jdeveloper 12c "Studio Edition Version 12.1.2.0.0"
This what I did:
1- I created a read only view object with this query "Select sysdate from dual"
2- I added this View object to the application module
3- I created a new method that change the query of this View object at runtime
    public void changeVoQuery(String dbViewName) {
        String sqlstm = "Select * From " + dbViewName;
        ViewObject dynamicVo = this.findViewObject("DynamicVo");
        if (dynamicVo != null) {
            dynamicVo.remove();
        dynamicVo = this.createViewObjectFromQueryStmt("DynamicVo", sqlstm);
        dynamicVo.executeQuery();
4- I run the application module for testing the method and I passed "Scott.Emp" as a parameter and the result was Success
5- Now I want to show the result of the view on the page, so I draged and dropped the method from the data control as a parameter form
6- I dragged and dropped the view Object "DynamicVo" as a table and I choose "generate Column Dynamically at runtime". This is the page source
<af:panelHeader text="#{viewcontrollerBundle.SELECT_DOCUMTN_TYPE}" id="ph1">
        <af:panelFormLayout id="pfl1">
            <af:inputText value="#{bindings.dbViewName.inputValue}" label="#{bindings.dbViewName.hints.label}"
                          required="#{bindings.dbViewName.hints.mandatory}"
                          columns="#{bindings.dbViewName.hints.displayWidth}"
                          maximumLength="#{bindings.dbViewName.hints.precision}"
                          shortDesc="#{bindings.dbViewName.hints.tooltip}" id="it1">
                <f:validator binding="#{bindings.dbViewName.validator}"/>
            </af:inputText>
            <af:button actionListener="#{bindings.changeVoQuery.execute}" text="changeVoQuery"
                       disabled="#{!bindings.changeVoQuery.enabled}" id="b1"/>
        </af:panelFormLayout>
    </af:panelHeader>
    <af:table value="#{bindings.DynamicVo.collectionModel}" var="row" rows="#{bindings.DynamicVo.rangeSize}"
              emptyText="#{bindings.DynamicVo.viewable ? 'No data to display.' : 'Access Denied.'}"
              rowBandingInterval="0" selectedRowKeys="#{bindings.DynamicVo.collectionModel.selectedRow}"
              selectionListener="#{bindings.DynamicVo.collectionModel.makeCurrent}" rowSelection="single"
              fetchSize="#{bindings.DynamicVo.rangeSize}" filterModel="#{bindings.DynamicVoQuery.queryDescriptor}"
              queryListener="#{bindings.DynamicVoQuery.processQuery}" filterVisible="true" varStatus="vs" id="t1"
              partialTriggers="::b1">
        <af:iterator id="i1" value="#{bindings.DynamicVo.attributesModel.attributes}" var="column">
            <af:column headerText="#{column.label}" sortProperty="#{column.name}" sortable="true" filterable="true"
                       id="c1">
                <af:dynamicComponent id="d1" attributeModel="#{column}"
                                     value="#{row.bindings[column.name].inputValue}"/>
            </af:column>
        </af:iterator>
    </af:table>
when I run the page this error is occured
<Nov 13, 2013 2:51:58 PM AST> <Error> <oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter> <BEA-000000> <ADF_FACES-60096:Server Exception during PPR, #1
javax.el.ELException: java.lang.NullPointerException
Caused By: java.lang.NullPointerException
Can any body help me please
thanks

Have you seen Shay's video https://blogs.oracle.com/shay/entry/adf_faces_dynamic_tags_-_for_a
All you have to do is to use the dynamic table to get your result.
Timo

Creating and Accessing a Dynamic View Object

Hi,
I'm needing to create a Dynamic View Object so to have the ability to modify the FROM and WHERE clauses in an SQL statement.
I then need to view all the columns and rows in an adf table or something similar.
I've read up a fair bit on similar situations, however I'm struggling with the basic framework of building the View Object.
I know I'm wanting to use ..createViewObjectFromQueryStmt..but just unsure of the syntax in using it, especially connecting the VO to an Application Module.
This is similar to what I've got now, located in AppModuleImpl.java
    public void createDynVO(ApplicationModule appMod, String FROMclause, String WHEREclause){
    String SQL = "SELECT JOURNAL_NAME, PERIOD_NAME FROM " + FROMclause + " " + WHEREclause;
    ViewObject vo = appMod.createViewObjectFromQueryStmt("DynamicView", SQL);
    vo.executeQuery();But how does it know what the application module is?
Any help would be greatly appreciated!
-Chris

Ok, I've actually modified my approach to this.
I've created a View Object in the design view, added it to the App Module, and then created an iterator and bound an adf table to that iterator.
The View Object which I created has the same column names as what I am going to be getting later down the track.
Everything is working perfectly, except that I can't seem to bind variables to the WHERE clause.
Below is what I have got running:
    public void recreateDynView(String FromClause, String whereCompany, String whereDepartment) {
         String sql_PAGE_ITEM1 = " AND PAGE_ITEM1 LIKE :P_PAGE_ITEM1";
         String sql_PAGE_ITEM2 = " AND PAGE_ITEM2 LIKE :P_PAGE_ITEM2";
         findViewObject("DynamicView1").remove();
         String SQLStmt = "SELECT PAGE_ITEM1, PAGE_ITEM2, PAGE_ITEM3, LINE_ITEM FROM " + FromClause;
         ViewObject vo = createViewObjectFromQueryStmt("DynamicView1",SQLStmt);
         vo.setWhereClause("1=1");
           if (whereCompany != null && whereCompany.length()>0){
               vo.setWhereClause(vo.getWhereClause() + sql_PAGE_ITEM1);
               vo.defineNamedWhereClauseParam("P_PAGE_ITEM1",null,null);
               vo.setNamedWhereClauseParam("P_PAGE_ITEM1",whereCompany);
           if (whereDepartment != null && whereDepartment.length()>0){
               vo.setWhereClause(vo.getWhereClause() + sql_PAGE_ITEM2);
               vo.defineNamedWhereClauseParam("P_PAGE_ITEM2",null,null);
               vo.setNamedWhereClauseParam("P_PAGE_ITEM2",whereDepartment);
         vo.executeQuery();
       }However whenever I input a value into one of the bound variables, I get the following error on the page.
   1. JBO-29000: Unexpected exception caught: oracle.jbo.InvalidOperException, msg=JBO-25070: Where-clause param variable P_PAGE_ITEM1 needs ordinal index array.
   2. JBO-25070: Where-clause param variable P_PAGE_ITEM1 needs ordinal index array.In the view object which i created at design stage, I've set the binding style to Oracle Named, so it should be alright. But obviously since I'm removing the view object and creating another version of it, it doesn't have the same binding style attached by default?
Is there a work around for this? I'm so close!
-Chris

Error in creating dynamic view

Hi,
I am using the following to create a dynamic view which will be created on runtime and conditions will be provided by user. Here is the code:
CREATE OR REPLACE PROCEDURE DYN_VIEW_PROC(PARA IN NUMBER)
AS
DEPT_NO NUMBER(3) := PARA;
DYN_QUERY VARCHAR2(1000);
BEGIN
DYN_QUERY := ' CREATE OR REPLACE VIEW DYN_VIEW
AS SELECT EMPNO,ENAME,DEPTNO FROM EMP_NEW
WHERE DEPTNO > :1 ';
EXECUTE IMMEDIATE DYN_QUERY USING DEPT_NO;
END;
But when i execute this code i got the following error:
SQL> EXEC DYN_VIEW_PROC(10);
BEGIN DYN_VIEW_PROC(10); END;
ERROR at line 1:
ORA-01027: bind variables not allowed for data definition operations
ORA-06512: at "SYS.DYN_VIEW_PROC", line 9
ORA-06512: at line 1
If i hardcode the condition in the defenation of view then it works fine. Any solution of it.

It looks strange.And more so, since the view name seems the same across each invocation (unless the example is missing that detail). So, if two users were creating this view one after the other and then subsequently try to use it, what would each user see in their output???
Not the rows based on their where condition, possbily.
You would create the view only once with all the necessary joins and any static conditions. Then users would use it as and when necessary, supplying their custom where condition on top of it.
What is the need you are trying to solve using this dynamic view creation?

Lov based on a dynamic view object

Build JDEVADF_11.1.2.0.0_GENERIC_110531.1615.6017
Hi,
I have a database table containing a column with the Name of a Table as content.
I created a dynamic view and overwrite this with a method in Appmodule.
Then I add to the element in the main view the Lov. I execute the method in JSP page.
But the SelectOnechoice list is empty!
Where is the problem? How can I create a Lov based on a dynamic view object?
Thanks in advance and best regards
Edited by: NewBB on 12.08.2011 00:53

Hi Neliel,
thank you for your reply.
My problem is not the same. I can also see my dynamic view objects as selectonechoice. I have a table T1 has a column t1c1 (Number),
another table T2 (dynamic view object) with two columns t2c1 (Number) and t2c2 (varchar2).
In my application I want to represent the values of t1c1 as selectonechoice with the values of t2c2.
and that does not work. My list is empty. Any idea???

Problem in tabular form based on dynamic view and pagination

Hi All,
I have a manual tabular form based on a dynamic view. The view fetches the records based on search criteria given by the user in all cases. But this view fetches ALL records when user clicks on pagination, without considering the search criteria. This is the problem I am facing.
I am doing the following:
Since tabular form does not support pl/sql function returning query, I cannot use a table directly. I need my results based on search criteria selected by user. Hence I created a dynamic view and used a "INSTEAD OF UPDATE" trigger to update the table.
I use a set bind variables procedure, on load before header for setting the variables.
This view fetches the correct data based on user search always. It creates a problem only in one situation, when using pagination in the report.
The example can be found at:
http://apex.oracle.com/pls/otn/f?p=19399:1:
username = [email protected]
pwd = kishore
Here if "manager name" is entered as test, we get 5 records in "Summary of requests" report and 5 records in "Inactive Requests" report. When user clicks on Pagination in any of the reports, ALL the 7 records get fetched in "Summary of Requests" and 6 records in "Inactive Requests". How can I overcome this problem?? The report must consider the search variables even when pagination occurs.
Is this because, the inbuilt "html_PPR_Report_Page" executes the region query once again by considering all search variables as NULL?
Backend Code is at:
http://apex.oracle.com/pls/otn/
workspace: sekhar.nooney
Username :[email protected]
pwd: kishore
application id = 19399
My region code is something like:
select *
from regadm_request_v
where access_type = :F110_REGADM
and status <> 'INACTIVE'
order by request_id
My view code is:
CREATE OR REPLACE VIEW REGADM_REQUEST_V
AS
SELECT *
FROM REGREGOWNER.REGADM_REQUEST
WHERE upper(employee_name) LIKE '%'||nvl(upper(REGADM_REQUEST_PKG.GET_EMPLOYEE_NAME),'%')||'%'
AND upper(manager_name) LIKE '%'||nvl(upper(REGADM_REQUEST_PKG.GET_MANAGER_NAME),'%')||'%'
AND upper(employee_sunetid) LIKE '%'||nvl(upper(REGADM_REQUEST_PKG.GET_EMPLOYEE_SUNET_ID),'%')||'%'
AND upper(manager_sunetid) LIKE '%'||nvl(upper(REGADM_REQUEST_PKG.GET_MANAGER_SUNET_ID),'%')||'%'
AND upper(request_date) LIKE '%'||nvl(upper(REGADM_REQUEST_PKG.GET_REQUEST_DATE),'%')||'%'
AND upper(USAGE_AGREEMENT_RECVD) LIKE '%'||nvl(upper(DECODE(REGADM_REQUEST_PKG.GET_USAGE_AGREMNT_RECVD,'~!@',NULL,REGADM_REQUEST_PKG.GET_USAGE_AGREMNT_RECVD)),'%')||'%'
AND upper(STATUS) LIKE '%'||nvl(upper(DECODE(REGADM_REQUEST_PKG.GET_STATUS,'~!@',NULL,REGADM_REQUEST_PKG.GET_STATUS)),'%')||'%'
AND upper(REQUEST_APPROVED) LIKE '%'||nvl(upper(DECODE(REGADM_REQUEST_PKG.GET_REQUEST_APPROVED,'~!@',NULL,REGADM_REQUEST_PKG.GET_REQUEST_APPROVED)),'%')||'%'
AND upper(nvl(APPROVAL_DATE,sysdate)) LIKE '%'||nvl(upper(REGADM_REQUEST_PKG.GET_APPROVED_DATE),'%')||'%'
AND upper(APRVL_REQUEST_SENT) LIKE '%'||nvl(upper(DECODE(REGADM_REQUEST_PKG.GET_EMAIL_APPROVERS,'~!@',NULL,REGADM_REQUEST_PKG.GET_EMAIL_APPROVERS)),'%')||'%'
AND upper(NOTIFY_APPROVED) LIKE '%'||nvl(upper(DECODE(REGADM_REQUEST_PKG.GET_APPROVAL_NOTIFICATION,'~!@',NULL,REGADM_REQUEST_PKG.GET_APPROVAL_NOTIFICATION)),'%')||'%'
I would be glad for any suggestions.
Andy/Varad any ideas? You both helped me a lot on my problems for the same application that I had faced before in More Problems in Tabular form - Please give me suggestions.
Thanks,
Sumana

Hi Andy,
The view and the package for setting bind variables work properly in my entire application other than the pagination. A pity that I came across this only now :(
I have used this same method for holding variables in another application before, where I needed to print to PDF. I used this approach in the other application because my queries were not within the APEX character limit specified for the "SQL Query of Report Query shared component".
In this application, I initially had to fetch values from 2 tables and update the 2 tables. Updateable form works only with one table right? Hence I had created a view. Later the design got changed to include search and instead of changing the application design I just changed the view then. Still later, my clients merged the 2 tables. Once again I had just changed my view.
Now, I wanted to know if any method was available for the pagination issue (using the view itself). Hence I posted this.
But as you suggested, I think it is better to change the page design quickly (as it would be much easier).
If I change the region query to use the table and the APEX bind parameters in the where clause as:
SELECT *
FROM REGADM_REQUEST
WHERE upper(employee_name) LIKE '%'||nvl(upper(:P1_EMPLOYEE_NAME),'%')||'%' .....
I also changed the ApplyMRU to refer to the table.
Here the pagination issue is resolved. But here the "last Update By" and "Last Update Date" columns do not get updated with "SYSDATE" and "v(APP_USER)" values, when update takes place. Even if I make the columns as readonly text field, I am not sure how I can ensure that SYSDATE and v('APP_uSER') can be passed to the columns. Any way I can ensure this? Please have a look at the issue here: http://apex.oracle.com/pls/otn/f?p=19399:1:
I have currently resolved the "last update" column issue by modifying my view as:
CREATE OR REPLACE VIEW REGADM_REQUEST_V
AS
SELECT *
FROM REGADM_REQUEST
I modified my region query to use APEX bind parameters itself as:
SELECT *
FROM REGADM_REQUEST_V
WHERE upper(employee_name) LIKE '%'||nvl(upper(:P1_EMPLOYEE_NAME),'%')||'%' .....
And I use the "INSTEAD OF UPDATE" trigger that I had initially written for update. The code is:
CREATE OR REPLACE TRIGGER REGADM_REQUEST_UPD_TRG
INSTEAD OF UPDATE
ON REGADM_REQUEST_V
REFERENCING NEW AS NEW OLD AS OLD
FOR EACH ROW
BEGIN
UPDATE REGREGOWNER.REGADM_REQUEST
SET MANAGER_EMAIL = :NEW.MANAGER_EMAIL
, EMPLOYEE_EMAIL = :NEW.EMPLOYEE_EMAIL
, STATUS_UPDATE_DATETIME = SYSDATE
, USER_UPDATE_ID = (SELECT v('APP_USER') FROM DUAL)
WHERE REQUEST_ID = :OLD.REQUEST_ID;
END;
Please let me know how I can resolve the "last update" column issue using the table itself. (Just for my learning)
Thanks,
Sumana

Creating and Binding View Objects dynamically : Oracle Jdeveloper 11g

Hello,
We are trying to create and bind view objects dynamically to adf data visualization components.
The view object is a result of multiple tables.
We are using Oracle JDeveloper 11g Technical Preview. ( can't upgrade to TP2 or TP3 now).
We have found this : http://radio.weblogs.com/0118231/stories/2003/07/15/creatingUpdateableMultientityViewObjectDefinitionsDynamically.html on our search for the same.
The sample application however, is in 10g , hence required migration.
Also, it was a standalone application with the TestClient.java having a main() method.
Our requirement is for Web Application; we use Adf+jsf .
Guidance of any sort is very much appreciated.
Thanks in advance.
-Anil Golla

Hi,
there also exist a forum for JDeveloper 11: JDeveloper and OC4J 11g Technology Preview
What you are trying todo is not trivial because you need to not only dynamically create the VO, you would also dynamically need to create the binding meta data for it (assuming you use ADF). Not sure if the API to modify the binding is public, so posting it on the JDeveloper 11 forum bears a glimpse of hope for an answer
In JDeveloper 10.1.3 you can't do this
Frank

How to create a webdynpro view dynamically and embed into view container?

Hi all,
Anyone knows how to create a view dynamically and embed the view into an existing view container?
My layout looks like this:
I have an existing view named main_view.
Inside main_view, I create a view ui container named vcu_view.
I embed the main_view into my window.
I need the codes to create a view dynamically and embed the view into the view container. Anyone have any idea?
Thanks in advance.
Rgds,
Siong Chao

hi Siong Chao ,,
empty view insence ..( create a view without any UI element in it ) in design time ..
>
Siong Chao wrote:
> Hi Chinnaiya,
>
> How do you create an empty view dynamically then? Thanks in advance.
i think we cannot create a new view dynamically because it is a webdynpro restriction ..
NOTE: experts correct me if i am wrong in this answer
Regards
Chinnaiya P

How to create dynamic view in hr report category

i want to make company code mandetory in in selection screen given by logical data base PNP here i want to make field mandetory. so how to create dynamic view in hr report category.
thanks in advance

solved by self

Create Dynamic Views

Hi,
I've a procedure that compiles correctly but give errors when executing in a Oracle 10g environment.
CREATE OR REPLACE PROCEDURE gen_wasc(sch_id NUMBER,fis_yr NUMBER)
Authid current_user
IS
BEGIN
     EXECUTE IMMEDIATE
    'CREATE OR REPLACE VIEW ' || 'WASC_SCH' || sch_id || 'L_STU_' || fis_yr ||
    'AS
     SELECT     sd.stuid,sd.name_first,sd.name_last,se.sess,se.sch_id,se.status_cd,sd.dist_entry_dt,
     se.entry_dt,sd.dist_exit_dt,se.exit_dt,se.fiscal_yr,se.grd_lvl
     FROM STUDENTS sd, ENROLLMENT se
     WHERE se.stu_id = sd.stu_id
     AND se.fiscal_yr= ' || fis_yr ||
    'AND se.sch_id = ' || sch_id ||
    'AND se.sess =2';
END;
BEGIN
gen_wasc (2,2004);
END;
The error is:
ORA-00905: missing keyword
ORA-06512 at, line 6
ORA-06512: at line 2
00905.0000 - "missing keyword"I'm not sure what the error is. Could someone give me a hand with this.
Thanks

> I've to pass in different school id and fiscal year to generate a report. The intent of the
dynamic view is to hand the script to the DBA to install on production server so I can just
call the procedure without handing him a different set views each time for the different
school id and fiscal year.
/me sobbing uncontrollably
(that is what I would do if I was your DBA - either that or pull out my lead pipe and take a good swipe at this
<insert dirty words here> approach)
Question. Do you know what SQL is? Do you what the purpose of SQL is? Do you realise that SQLs are programs that
contains instructions on how to process/manipulate/fetch data? And that like all programs, support variables? And
that is is truly silly to create a thousand and one copies of the very same program to fetch a data where the only
difference in the program is the values?

Select from Query ? / Dynamic view ? Anything else ?

Hello,
This could be a bit challenging. (or maybe not, i hope)
I have to create a report which is based on 3/4 tables with pretty complex SQL.
Step 1. I have to use views (in the database currently) to select data from these tables.
Step 2. Then create the next set of views (in the db) based on the previous views.
Step 3. Then finally join the last set of views in Reports and create the report based on the PARAMETERS entered.
This was fine, until the client changed the criteria. Now the views have to be created but the PARAMETERS affect the FIRST set of views.
That is, the views in the FIRST STEP will have a where condition based on the parameters at RUN TIME.
I was wondering about how to do this ?
1. Can I use dynamic views (in db) passing the where condition parameter to the where clause ? Alternatively use DDL in Reports.
OR
2. Create a query in Reports and create subsequent QUERIES BASED ON THE FIRST QUERY (like MS Access). Can this be done ?
3. Any other way ?
If you need any clarification, I can provide that.
THANKS for taking the time to read it. It would be great if you could give me any ideas.
Pat.

hello,
you might look into REF-CURSOR-QUERIES for this particular case. it might help.
regards,
the oracle reports team

Dynamic view creation in Flex

I am new to Flex web applications and I am doing research to see if functionality
contained in an existing web application can be replicated in a Flex web app.
We currently have a JSP / Struts based web application that creates a data entry
web view dynamically based on information that describes the different widgets and
their view locations as recieved from the application backend. We are looking at
migrating this application and this functionality to Flex.
When User X selects 1 of any number of data entry views, the Flex application would
receive data from the back end that contains information describing the different widgets
to display on the dynamic view: what type of widget to display ( text field,combo, line,
box, etc), the pixel specific positional information as to where each widget exists in the
view. These data entry views are not something the Flex developer designs or knows
what to expect from the backend. Flex has to generate the view on the fly based on the
information that describes the view.
The question: I fully expect there to be coding within the action scripts; before trying to
learn how to do this, is this something that Flex support.
Thanks,
Brian

Yep, we do something similar. We had to build out the infrastructure, but It works fine. E.g.,
var bDesc:XML = <button x="10" y="5" label="hello world" color="red"/>
var b:Button = new Button();
b.label = bDesc.@label;
b.x = bDesc.@x;
b.y = bDesc.@y;
b.setStyle('color', b.@color);
addChild(b);
In your app, the actual description (XML or other format) would be coming from the server. Then you just add it to the display list (and wire in any event handlers if necessary). In a real setting, you'll need error checking and a more formalized way of doing this, but it works reasonably well. No major snags.

[SOLVED] Multiple Dynamic View Objects and View Links - ADF Tree Table

Hi all,
I've got a method that creates 3 dynamic viewobjects using this:
            ViewDefImpl Level1ViewDef = new ViewDefImpl("Level1View");
            Level1ViewDef.addViewAttribute("LevelDescription","LEVEL1_DESCRIPTION",String.class);
            Level1ViewDef.addViewAttribute("SetOfBooksId","SET_OF_BOOKS_ID",Number.class);
            Level1ViewDef.addViewAttribute("CodeCombinationId","CODE_COMBINATION_ID",Number.class);
            Level1ViewDef.addViewAttribute("Level1","LEVEL1",String.class);
            Level1ViewDef.addViewAttribute("AccountType","ACCOUNT_TYPE",String.class);
            Level1ViewDef.addViewAttribute("PeriodYear","PERIOD_YEAR",Number.class);
            Level1ViewDef.addViewAttribute("PeriodNum","PERIOD_NUM",Number.class);
            Level1ViewDef.addViewAttribute("PeriodName","PERIOD_NAME",String.class);
            Level1ViewDef.addViewAttribute("PtdActual","PTD_ACTUAL",Number.class);
            Level1ViewDef.addViewAttribute("YtdActual","YTD_ACTUAL",Number.class);
            Level1ViewDef.addViewAttribute("LtdActual","LTD_ACTUAL",Number.class);
            Level1ViewDef.addViewAttribute("BudgetName","BUDGET_NAME",String.class);
            Level1ViewDef.addViewAttribute("BudgetVersionId","BUDGET_VERSION_ID",Number.class);
            Level1ViewDef.addViewAttribute("PtdBudget","PTD_BUDGET",Number.class);
            Level1ViewDef.addViewAttribute("YtdBudget","YTD_BUDGET",Number.class);
            Level1ViewDef.addViewAttribute("LtdBudget","LTD_BUDGET",Number.class);
            Level1ViewDef.addViewAttribute("EncumbranceType","ENCUMBRANCE_TYPE",String.class);
            Level1ViewDef.addViewAttribute("EncumbranceTypeId","ENCUMBRANCE_TYPE_ID",Number.class);
            Level1ViewDef.addViewAttribute("PtdCommitment","PTD_COMMITMENT",Number.class);
            Level1ViewDef.addViewAttribute("YtdCommitment","YTD_COMMITMENT",Number.class);
            Level1ViewDef.addViewAttribute("LtdCommitment","LTD_COMMITMENT",Number.class);
            Level1ViewDef.setQuery(sql_level1);
            Level1ViewDef.setFullSql(true);
            Level1ViewDef.setBindingStyle(SQLBuilder.BINDING_STYLE_ORACLE_NAME);
            Level1ViewDef.resolveDefObject();
            Level1ViewDef.registerDefObject();
            ViewObject vo1 = createViewObject("Level1View",Level1ViewDef);I can create the view objects fine and create a single viewlink between two of them, however i'm getting problems with 2 view links.
This is how I'm creating a view link:
            ViewLink Level2Level1FKLink = createViewLinkBetweenViewObjects("Level2Level1FKLink1",
                                                    "Level2View",
                                                    vo1,
                                                    new AttributeDef[]{
                                                      vo1.findAttributeDef("Level1")
                                                    vo2,
                                                    new AttributeDef[]{
                                                      vo2.findAttributeDef("Level1")
                                                    "LEVEL1 = :Bind_Level1");
            ViewLink Level3Level2FKLink = createViewLinkBetweenViewObjects("Level3Level2FKLink1",
                                                    "Level3View",
                                                    vo2,
                                                    new AttributeDef[]{
                                                      vo2.findAttributeDef("Level2")
                                                    vo3,
                                                    new AttributeDef[]{
                                                      vo3.findAttributeDef("Level2")
                                                    "LEVEL2 = :Bind_Level2");I can get the data to display on an adf tree table if i'm only using a single view link, but when i try and implement 2 view link (for 3 levels on the adf tree table) i'm getting problems displaying the data.
I'm getting the following error:
Aug 10, 2007 2:44:39 PM oracle.adfinternal.view.faces.renderkit.core.xhtml.PanelPartialRootRenderer encodeAll
SEVERE: Error during partial-page rendering
oracle.jbo.NoDefException: JBO-25058: Definition Level3View of type Attribute not found in Level2View_Level2Level1FKLink1_Level2ViewThe thing is, Level3View isn't in the Level2Level1FKLink viewlink.
I've been reading about something similar here
BC4J Master-Detail-Detail
but I am still unsure of what the problem is.
Thanks in advance.

I found the answer here:
http://radio.weblogs.com/0118231/stories/2004/06/10/correctlyImplementingMultilevelDynamicMasterDetail.html

Updatable , Dynamic VIEW OBJECT ??

Hi ,
I want to create a dynamic VO which is updatable.
I dont have any information about the table on which my View Object is based on, at DESIGN TIME. At run time I create query for the view and create dynamic view using AM.createViewObjectFromQueryStmt(String, String) but this kind of view will not be an updatable view.
I think if I use createViewObjectFromQueryClauses() from entity, it will be updatable,,,but in that I will have to create entities for all the table in my schema ..which sounds BAD...
is there any thing as DYnamic Entities ??
or any other trick to do this.....
BC4J should support something like changing QUERY_DATA_SOURCE_NAME at runtime in oracle forms.. which allow you to update record.
Thanx,
Prasoon

Hi Prasoon,
Steve Muench's "Dive Into BC4J" page has the following example: http://radio.weblogs.com/0118231/stories/2003/07/15/creatingUpdateableMultientityViewObjectDefinitionsDynamically.html
But this is based on pre-defined Entity Objects. It might give you some ideas, though.
Good luck!
Chris

Create a dynamic view

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