Nested Tables, Forms and Portal

I am trying to implement a form in Portal that accesses a nested table. I can access normal tables but not my nested table. The nested table within the master table are object tables.
When trying to access from the designer page I get an error indicating that table does not exist even though it was displayed in the pick list.
Has anyone had success with this and can it be done.

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by chetan.kashyap ([email protected]):
Actually nested tables are not supported by portal till now.<HR></BLOCKQUOTE>
Chetan, can you be a bit more specific. What do you mea by 'till now'. Does this mean the next release can do it, or the current release shipped with Oracle 9i Application Server 1.0.2.0.0 for linux that I received.

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Hi there,
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https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/2adb9bfb-0701-0010-75ac-bb20fc008aae
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/9e4e9afb-0701-0010-f8a8-b8cd093662c2
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Confusion over nested tables and system generated nested tables

Hi,
I have been reading other threads about nested tables, naming and updating them etc, but I have what seems
to me some odd behaviour.
I modified my schema to set the attribute xdb:maintainDom to be false for a collection and then registered
the schema with the generate tables option defaulted to true. The result was that I had to add xdb:tableProps
attributes specifying nested table storage at each element above the collection element, this was because Oracle
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I found that nestes tables with systems generated names like "SYSNTxxxxxxxxx" has been created that contained
the data.
When I registered the schema without the tables being generated, I created a table with this syntax:
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NESTED TABLE XMLDATA."BibPt".PTEES.PTEE_SEC.PTEE STORE AS NESTED_PTEE_SEC
NESTED TABLE XMLDATA."BibPt".INVS.INV STORE AS NESTED_INV_BIBPT(Thanks to a posting by Sam Monsarrat which showed me this was possible).
Now I had my named nested tables, which contained the data after it was loaded and no system named
nested tables.
So why the difference?
In the first instance why do my named nested tables stay empty and why does the data go into system
generated tables I have no control over as regards tablespace placement?
Is it possible to have a XML schema registered that only generates tables that I have named with the defaultTable
attribute, rather than all or nothing?
And last but not least, what's the best approach for this, since I want to be able to access the data via indexes
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Hi Pete
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How to update nested table records ??

Hi, I am just starting to write anything in PL/SQL and having some difficulties with basic syntax. Thanks for any help in advance.
My problem is how to update collection (nested table of objects) with SQL statement. My nested table is not a column of regular table.
Example:
CREATE OR REPLACE TYPE tmpRec AS OBJECT(
Col1 INT,
Col2 INT
CREATE OR REPLACE TYPE tmpTable IS TABLE OF tmpRec;
DECLARE v tmpTable :=
tmpMBATable(
tmpRec(1,1),
tmpRec(2,2),
tmpRec(3,3),
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--UPDATE TABLE(CAST(v AS tmpTable)) T SET T.Col2 = 1 WHERE T.Col1 =1;
--UPDATE TABLE(v) T SET T.Col2 = 12 WHERE T.Col1 =1;
--UPDATE (SELECT * FROM TABLE(v) )T SET T.Col2 = 12 WHERE T.Col =1;
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I am getting either
PL/SQL: ORA-22841: DML is not allowed on PL/SQL Collections
OR
PL/SQL: ORA-00903 Bad table name.
I found there is no problem when collection is a column of DB table (UPDATE TABLE(select collection_column from table) T SET T.Col2 = 12 WHERE T.Col1 =1;) but i want it to be just a collection without storing it in DB, is it possible ?
Please help.

898539 wrote:
Thanks, for fast answer but my problem is more complex, maybe you can show me some workaround i try to use collection but maybe i should do something else...A complex problem does not mean a complex solution. In fact, complex problems should ideally be solved by breaking the complexity down into simpler components and then solving each of these in turn.
As far as nested tables go? An interesting feature. But one that I will need a lot of convincing and justification for to consider for a production system. There are some major limitations with using nested tables. And these do not exist when using the simpler form of a standard relational child table instead.
I am migrating from Sybase Adaptive Server Enterprise and searching for sollution for something we used temporary tables for so far.Temporary tables in Sybase are typically used to prevent concurrency issues (readers and writers blocking one another). Thus make a temp copy of the data and do not prevent concurrent access to the source data itself.
These reasons simply do not exist in Oracle. In most cases, using temporary tables in Oracle simply because that is how it was implemented in Sybase, would be fundamentally flawed.
Oracle is not Sybase. It does a very poor imitation of Sybase.
I need a collection that can store some data and I need to be able to use it as a table so I can join to it via SQL query or call some DML on it.Why do you need a collection? The best place for data in Oracle is inside a table. Not inside a collection - especially not if that collection resides in PGA memory in the PL/SQL engine.
In my store procedure I am updating, deleteing and inserting some data to it depends on context.What context? Oracle supports context namespaces - often used for virtual private database (VPDB) implementations. If you are referring to scope instead - there are a number of ways that Oracle supports scope too.
The bottom line is that you should not approach this problem with "+how do I convert this Sybase method into an Oracle method+". Instead you need to look at the business requirement that the Sybase method addresses and then determine how best to address that requirement using Oracle.

Nested Tables in Visual Composer 7.0

Gurus,
When I am trying to drag and drop the webservice in the Iview it gives a warning message "Port 'Salesorder' was omitted because it includes nested tables which are not presently supported by Visual Composer" . My question is how to use this webservice which has nested table in one of the input port. Is there any work around or can you suggest me any other way we can call this webservice "ECC_SalesOrderCTRC1".

Hi,
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Hi! I am reading the PL/SQL reference about collections right now and I have reached the nested tables. And I can not understand the advantages of using them. There is an example there
INSERT INTO department
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'Modern Drama',
'The Short Story',
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A practical example of a nested table.
I have written an application logging API in PL/SQL. Messages wind up being inserted via anonymous transactions into a relational table.
This PL/SQL logging process also takes a snapshot of the PL/SQL call stack at that point in time and store the stack with the message as a column. The call stack itself is in fact a table. i.e. stack = (handle, object name and source code line number). Thus the STACK column in this table is a nested table.
One could have used a separate table for the call stack (traditional parent-child relationship). However, there are absolutely nothing in common between the call stack of one message and that of another. One would never want to query all call stacks to find what was the code running at stack level 4, or what line number was used at stack level 2, etc.
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