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
was creating tables at each level. So I have this kind of thing:
<xsd:element name="BibPt" xdb:SQLType="BIBPT_T"
xdb:defaultTable="BIBPT"
xdb:tableProps="NESTED TABLE XMLDATA.PTEES.PTEE_SEC.PTEE STORE AS NESTED_PTEE_SEC
NESTED TABLE XMLDATA.INVS.INV STORE AS NESTED_INV_BIBPT TABLESPACE BIBLIO">
<xsd:element name="Ptees" xdb:SQLType="PTEES_T" xdb:tableProps="NESTED TABLE
XMLDATA.PTEE_SEC.PTEE STORE AS NESTED_PTEE_SEC2">When I did this the nested tables were created, but when I loaded data never had anything in them. Instead
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:
create table poc_wip2 of xmltype
xmlschema "http://www.derwent.co.uk/wpi.xsd" element "WPI"
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
on the nested tables.
Thanks
Pete

Hi Pete
Would you please publish the schema you are using?
Thanks,
Tobias

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create or replace
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>
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ctxt_header varchar2(10),
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>> I have similar to the following data in a table and it is not normalized. The group_id is being used to group two records [sic] of similar nature. <<
Rows are not records. Tables have to have a key by definition. You do not do math with identifiers, so they should not be numeric. Let's ignore that error for now. In short, you are posting garbage. If you had followed Forum Netiquette, would you have posted
this?
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(3, 1, 111),
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(10, 3, 222),
(11, NULL, 333),
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Just like punch cards and mag tape data processing! Being old and being new are a status, not another kind of entity. But that is how mag tapes work. And you even use the verb "fetch" from tape files. This design flaw is called attribute splitting.
Do you have a Male_Personnel and Female_Personnel table? NO! It is just Personnel!
>> old_doc_id should be stored as new_doc_id when inserting to New_Documents table. Only records [sic] with group_id NULL and one record [sic] (first [sic; no ordering in a table] one) per group should be considered (For example, old_doc_id 5 is not considered
as 3 and 5 belong to the same group_id =1) for insertion. <<
Think about your punch card mindset. Why did you physically materialize that redundant New_Documents table? Let me answer that: this is how you work with punch cards! In SQL we use a VIEW:
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>> All records [sic] from Old_Documents should be considered for insertion into New_Documents_Groups table. The old_doc_id is inserted as new_doc_id and dept_nbr is as-is. Instead of group_id, the ID [sic: which identifier??] of the first [sic: tables
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<<
Why not use 5 as the parent? My guess is that you are trying to form equivalence classes. See:
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i have some table 1 table which holds rules which rules i have to apply on the sql query
2 table will hold table name and column name and transformation
with these help of 2 tables i want to build a sql quey and the sql query need to be insert into another table.

Hi Karthick,
I am not going to build Dynamic Data Model.
i already have table 1 contains rules let's say COUNT,
and another table contain source table name , column name , Target table name, Source Table name like that
so with the help of these 2 tables i want to build Sql query and going to insert into 3rd table.

Confusion over nested tables and system generated nested tables

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