Nested Table Problem

Hello,
I am using Oracle10g and TopLink 10.1. I would like to implement a table descriptor which has nested tables.
When I try to read "root" table, I get error messages described below.
Could anybody tell me what's wrong?
Thanks,
***** [3 Tables] *****
Table: PARENT
Fields: PARENT_NO
Table: CHILD
Fields: CHILD_NO, PARENT_NO
Table: CHILD_MASTER
Fields: CHILD_NO, CHILD_NAME, etc.
***** [The relation between tables] *****
Parent<---(OneToMany)--->Child<---(Multitable)--->ChildMaster
***** *****[/b]
RelationalDescriptor descriptor = new RelationalDescriptor();
descriptor.setJavaClass(Parent.class);
descriptor.setTableName("PARENT");
descriptor.setPrimaryKeyFieldName("PARENT_NO");
descriptor.addTableName("CHILD");
descriptor.addTableName("CHILD_MASTER");
// OneToMany configuration
OneToManyMapping oneToMany = new OneToManyMapping();
oneToMany.setAttributeName("Child");
oneToMany.setReferenceClass(Child.class);
oneToMany.setTargetForeignKeyFieldName("PARENT_NO");
descriptor.addMapping(oneToMany);
// Multitable configuration
ExpressionBuilder builder = new ExpressionBuilder();
Expression exp = builder.getField("CHILD.CHILD_NO").equal("CHILD_MASTER.CHILD_NO");
descriptor.getDescriptorQueryManager().setMultipleTableJoinExpression(exp);
// Read
ReadObjectQuery query = new ReadObjectQuery("PARENT");
UnitOfWork uow = toplinkSession.acquireUnitOfWork();
uow.executeQuery(query);
***** [Resulting SQL] *****
SELECT t0.PARENT_NO, t1.PARENT_NO, t2.PARENT_NO,...
FROM PARENT t0, CHILD t1, CHILD_MASTER t2
WHERE ((t1.PARENT_NO = t0.PARENT_NO) AND (t1.CHILD_NO = t2.CHILD_NO))
***** [Error Message] *****
When I read "Parent", I get following error...
"T2" is "CHILD_MASTER" table which has no "PARENT_NO" field. I don't want select "CHILD_MASTER.PARENT_NO" because it doesn't exist!
Exception[TOPLINK-4002] (Oracle TopLink - 10g Release 3 (10.1.3.3.0) (Build 070620)): oracle.toplink.exceptions.DatabaseException
Internal Exception: java.sql.SQLException: ORA-00904: "T2"."PARENT_NO": Invalid Identifier
Error Code: 904
Query:ReadAllQuery(Parent)
     at oracle.toplink.exceptions.DatabaseException.sqlException(DatabaseException.java:290)
     at oracle.toplink.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:581)
     at oracle.toplink.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:441)
Message was edited by:
        user601162

Thank you for your reply. Maybe my explanation was confusing.
>Parent should map to the PARENT table,
Child should map the CHILD
and ChildMaster should map to the CHILD_MASTER table.
Exactly. What I want to do is "Parent has Child" using OneToMay, "Child has ChildMaster" using Multitable. I guess it's still unclear...
Anyway, I appreciate your advice.

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Edited by: skymonster84 on Mar 8, 2011 5:12 PM

Hi,
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http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/operators006.htm
Not tested :
UPDATE tracer_search_schedule_lot_num
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Hi,
we are facing a problem during implementation. Our DB set up
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MAXTRANS 255
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Hi
I am not sure but maybe you need to use this command:
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Hi,
we are facing a problem during implementation. Our DB set up
is , we will be having two schema named OWNR and COPY.
In the schema, OWNR we have to create all the tables,
types,procedures, packages and obj.....This schema will have
both DDL and DML privileges.
In the schema, COPY we are not supposed to create any tables,
objects. We have to create public synonyms for all the tables,
types, procedures... in OWNR and grant ALL privilege to the
schema COPY.The schema, COPY will have only DML privileges.
The problem is we have some nested tables in our application.
When I try to insert into the synonym which is created for the
nested table, it is not allowing me to insert..The whole
implementation is stucked..Please help.The scripts are given
below.......
We have a type name SITA_ADDRESS_TY which is used by the nested
table SITA_ADDRESSES_NT.Script used for creating the Type,Nested
table,Table, Public Synonym and granting all privilege to these
types and tables are
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SITA_ADDRESS VARCHAR2(10),
REMARKS VARCHAR2(100)) ;
PROMPT SITA_ADDRESSS_NT...
CREATE OR REPLACE TYPE SITA_ADDRESSES_NT AS TABLE OF
SITA_ADDRESS_TY ;
Using this nested table we have created the table,
UMS_SITA_ADDRESS
CREATE TABLE UMS_SITA_ADDRESS (
COMPANY_CODE VARCHAR2 (6) NOT NULL,
AIRLINE_CODE VARCHAR2 (6) NOT NULL,
DESTINATION VARCHAR2 (6) NOT NULL,
SITA_ADDRESS SITA_ADDRESSES_NT)
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PCTUSED 40
INITRANS 1
MAXTRANS 255
STORAGE (
INITIAL 64K
NEXT 64K
PCTINCREASE 0
MINEXTENTS 1
MAXEXTENTS 505
FREELISTS 1 FREELIST GROUPS 1 )
NOCACHE
NESTED TABLE SITA_ADDRESS STORE AS UMSNT_SITA_ADDRESS ;
PROMPT SYNONYM SITA_ADDRESS_TY...
CREATE PUBLIC SYNONYM SITA_ADDRESS_TY FOR SITA_ADDRESS_TY
PROMPT SYNONYM SITA_ADDRESSES_NT...
CREATE PUBLIC SYNONYM SITA_ADDRESSES_NT FOR SITA_ADDRESSES_NT
PROMPT UMS_SITA_ADDRESS...
CREATE PUBLIC SYNONYM UMS_SITA_ADDRESS FOR UMS_SITA_ADDRESS
Granting Privileges
PROMPT SITA_ADDRESS_TY...
GRANT EXECUTE ON SITA_ADDRESS_TY TO COPY
PROMPT SITA_ADDRESSS_NT...
GRANT EXECUTE ON SITA_ADDRESSES_NT TO COPY
PROMPT UMS_SITA_ADDRESS...
GRANT ALL ON UMS_SITA_ADDRESS TO COPY
When I connect to copy and desc UMS_SITA_ADDRESS, the structure
is
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COMPANY_CODE NOT NULL VARCHAR2(6)
AIRLINE_CODE NOT NULL VARCHAR2(6)
DESTINATION NOT NULL VARCHAR2(6)
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OWNR.SITA_ADDRESSES_NT
Why is it so??. Even though I have a synonym for
SITA_ADDRESSES_NT, it is not referencing the synonym but instead
refer the OWNR.SITA_ADDRESSES_NT
Because of this when I try to insert into ums_sita_address(in
schema COPY), it is giving the following error,
SQL> insert into ums_sita_address values
('EK','EK','DXB',SITA_ADDRESSES_NT());
insert into ums_sita_address values
('EK','EK','DXB',SITA_ADDRESSES_NT())
ERROR at line 1:
ORA-00932: inconsistent datatypes
But when the same connect to OWNR and try to insert with the
same stmt, it is inserting...
Our middle tier can connect only to COPY schema alone..Is there
anything to be done in the DBA side to achieve this??.
Please help from your valuabe experience...Or can you ask your
collegues if they have got a soln to this probs..We are stucked
with this...
Thanks
Priya

Hi
I am not sure but maybe you need to use this command:
SQL> insert into ums_sita_address values
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SITA_ADDRESSES_TY() instead SITA_ADDRESSES_NT
Regards

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Hi Everyone,
I have applied thisexample for creating nested tables but at the end I got the message of invalid datatype
current_address full_mailing_address_type,
ERROR at line 4:
ORA-00902: invalid datatype
http://www.praetoriate.com/oracle_tips_nested_tables.htm
Please help me out.....
Message was edited by:
Dharmendra

What is the output for
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Hi i am working on Oracle 10g and cleint is sqlplus.
Now while creating a nested table following error occured.
This is the script for your reference.:
CREATE OR REPLACE TYPE sec_pwd_hist_table
AS
TABLE OF sec_pwd_history_type
index by binary_integer
Warning: Type created with compilation errors.
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Errors for TYPE SEC_PWD_HIST_TABLE:
LINE/COL ERROR
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Vikas, I trust I answered that question when I said? :
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Select from nested table in a nested table security problem

please help
running Oracle 9.2.0.3.0 on RH AS 2.1
I can select the inner most nested table as the creator, but can't use the same select statement as USER2.
ORA-00942: table or view does not exist
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create or replace type mydata_t as object ( x float, y float);
create or replace type mydata_tab_t as table of mydata_t;
create or replace type mid_t as object (
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create or replace type mid_tab_t as table of mid_t;
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insert into xyz values (1, top_t(22,mid_tab_t(mid_t('line1',mydata_tab_t(
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select * from table(select Y.datapoints as DP_TAB
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-- select works as user2, but i need individual lines
select Y.datapoints as DP_TAB
     from table(select X.mainstuff.more_mid as MORE_TAB
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          where X.xyzPK=1) Y
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Thank you for your reply.
I have tried
select value(t) from table t;
but it is still not working. I got almost the same answer as before.
Anyway thank you very much again.
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by MARCELO OCHOA ([email protected]):
Originally posted by meimei wu ([email protected]):
[b]I created a nested object-relational table using REF type in oracle8i. when I tried to select * from the table, I got lots of number as the ref type values, but actually, the value in ref type should be of type varchar2 and number. The number I got looked like following code:
JARTICLE_REF_TYPE(000022020876108427C2FE0D00E0340800208FD71F76103B99B12009C0E0340800208FD71F,
Does anyone know how I can get the actual value that I inserted into the nested table?
your help is appreciated.<HR></BLOCKQUOTE>
Try this:
select value(t) from table t;
Best regards, Marcelo.
null

Problem in truncate/drop partitions in a table having nested table columns.

Hi,
I have a table that has 2 columns of type nested table. Now in the purge process, when I try to truncate or drop a partition from this table, I get error that I can't do this (because table has nested tables). Can anybody help me telling how I will be able to truncate/drop partition from this table? IF I change column types from nested table to varray type, will it help?
Also, is there any short method of moving existing data from a nested table column to a varray column (having same fields as nested table)?
Thanks in advance.

>
I have a table that has 2 columns of type nested table. Now in the purge process, when I try to truncate or drop a partition from this table, I get error that I can't do this (because table has nested tables). Can anybody help me telling how I will be able to truncate/drop partition from this table?
>
Unfortunately you can't do those operations when a table has a nested table column. No truncate, no drop, no exchange partition at the partition level.
A nested table column is stored as a separate table and acts like a 'child' table with foreign keys to the 'parent' table. It is these 'foreign keys' that prevent the truncation (just like normal foreign keys prevent truncating partions and must be disabled first) but there is no mechanism to 'disable' them.
Just one excellent example (there are many others) of why you should NOT use object columns at all.
>
IF I change column types from nested table to varray type, will it help?
>
Yes but I STRONGLY suggest you take this opportunity to change your data model to a standard relational one and put the 'child' (nested table) data into its own table with a foreign key to the parent. You can create a view on the two tables that can make data appear as if you have a nested table type if you want.
Assuming that you are going to ignore the above advice just create a new VARRAY type and a table with that type as a column. Remember VARRAYs are defined with a maximum size. So the number of nested table records needs to be within the capacity of the VARRAY type for the data to fit.
>
Also, is there any short method of moving existing data from a nested table column to a varray column (having same fields as nested table)?
>
Sure - just CAST the nested table to the VARRAY type. Here is code for a VARRAY type and a new table that shows how to do it.
-- new array type
CREATE OR REPLACE TYPE ARRAY_T AS VARRAY(10) OF VARCHAR2(64)
-- new table using new array type - NOTE there is no nested table storage clause - arrays stored inline
CREATE TABLE partitioned_table_array
     ( ID_ INT,
      arra_col ARRAY_T )
     PARTITION BY RANGE (ID_)
     ( PARTITION p1 VALUES LESS THAN (40)
     , PARTITION p2 VALUES LESS THAN(80)
     , PARTITION p3 VALUES LESS THAN(100)
-- insert the data from the original table converting the nested table data to the varray type
INSERT INTO PARTITIONED_TABLE_ARRAY
SELECT ID_, CAST(NESTED_COL AS ARRAY_T) FROM PARTITIONED_TABLENaturally since there is no more nested table storage you can truncate or drop partitions in the above table
alter table partitioned_table_array truncate partition p1
alter table partitioned_table_array drop partition p1

Create a view problem on nested tables

I have a table which has a column of nested table:
create table Person (
id NUMBER(10), --primary key
attr1 varchar2(10),
attr2 varchar2(10),
kids KIDS_NT --KIDS_NT is a nested table of object
--which has two columns: name, age.
) nested table store as kids_nt_tab;
Now I like to create a view which has the id (key), concatenation of attr1 and attr2 with a ".", and count of how many kids this persion has):
create view Person_V as (
select id, attr1||'.'||attr2 as attr12,
count(*) from A a, table(a.kids)
group by id)
This won't work since it says attr1.attr2 is not a GROUP BY expression. If I don't specify a group by statement, it will say "not a single group group function).
One solution that I think it will work but quite ugly is to create a view of id and attr1.attr2, andother for id and kids count, then a final view to join them.
Does anyone have a better solution? Thanks in advance!
Alice

One way could be:
SQL> create or replace type kids as object (
2         name varchar2(10),
3         age number) ;
4 /
Type created.
SQL>
SQL> create or replace type kids_nt as table of kids ;
2 /
Type created.
SQL>
SQL> create table Person (
2      id NUMBER(10) primary key,
3      attr1 varchar2(10),
4      attr2 varchar2(10),
5      kids KIDS_NT
6 ) nested table kids store as kids_nt_tab;
Table created.
SQL>
SQL> insert into Person values (1, 'attr1', 'attr2', kids_nt(kids('kid1', 10), kids('kid2', 8))) ;
1 row created.
SQL> insert into Person values (2, 'attr1', 'attr2', kids_nt(kids('kid1', 6), kids('kid2', 13))) ;
1 row created.
SQL>
SQL> select id, attr1||' '||attr2, (select count(*) cnt from table(p.kids)) cnt
2 from Person p
3 /
        ID ATTR1||''||ATTR2             CNT
         1 attr1 attr2                    2
         2 attr1 attr2                    2
2 rows selected.
SQL>

Problem in using Nested TABLE

Hi ,
I created 2 Nested Table & tried to insert the data in Table through Procedure but it gave an err msg.
create type name as object
(fname varchar2(20),
mname varchar2(20),
lname varchar2(20));
create type address as object
(city varchar2(20),
state varchar2(20),
pin varchar2(20));
create type ename as table of name;
create type eaddress as table of address;
create table emp_rec
(employee_id varchar2(5),
employee_name ename,
employee_address eaddress)
nested table employee_name store as empname,
nested table employee_address store as empaddress;
insert into emp_rec
values('1',
ename(name('anand','kumar','chouksey')),
eaddress(address('vashi','mh','400093')));
//Data Inserted
//Procedure for Inserting Another Data Works
create or replace procedure nest_proc
is
begin
insert into
the
(select employee_address from emp_rec where employee_id=1 ) e
values('jbp','mp','482002');
--where employee_id=1;
end;
begin
nest_proc;
end;
PL/SQL procedure successfully completed.
//But if i'll try to insert the data into 2 nested tables then gets failed.
create or replace procedure nest_proc
is
begin
insert all into
the
(select employee_name,employee_address from emp_rec where employee_id=1 ) e
values('x','y','z');
into the(select employee_address from emp_rec where employee_id=1 ) e
values('a','b','c');
--where employee_id=1;
end;
Kindly help me out.
Rgrds,
Anand

Hi,
Thanks for replying ,actually i did the mistake. I'm using multitable insert stmt. on 2 different tables that's why it gave an err msg.Instead of using multitable insert stmts i used 2 insert stmt. on Procedure & it gets compiled.
Regards,
Anand

How to use nested tables with the inner table in a separate row

Hi,
I am having a problem when changing our existing Adobe printform delivery note so that serial numbers are written for each item line.
I've searched the forum and found many posts relating to nested tables, but none that had exactly my situation.
Currently I print item lines like this (this uses the complete width of the form):
Pos....Quantity...Material..........Description..................................................Date
99.........99.........ABCDEFGH....alksdalksjdlkasjdlsajdlkjasldjaslkdjakslj........9999.99.99
.................................................fskdjflsdfljsdflkjsdlkfjsdlkjfdfsf
.................................................asdkadsfdkfhsdkfhskjdfhks
but I want to add serial numbers after that for each item like this:
Pos....Quantity...Material..........Description...................................................Date
99.........99.........ABCDEFGH....alksdalksjdlkasjdlsajdlkjasldjaslkdjakslj.........9999.99.99
.................................................fskdjflsdfljsdflkjsdlkfjsdlkjfdfsf
.................................................asdkadsfdkfhsdkfhskjdfhks
.................................................Serial numbers:
.................................................9999999999..9999999999..9999999999
.................................................9999999999..9999999999..9999999999
I have added serial numbers to my the current table in the interface/context/data view so it look like this:
TTYP - ITEM_FIELDS
...DATA structure
......POSNR
......QTY
......MATNR
......TTYP - ITEM_TEXTS
.........DATA structure
............DESCRIPTION
......DATE
......TTYP - SERIAL_NOS
.........DATA structure
............SERIAL_COL1
............SERIAL_COL2
............SERIAL_COL3
In my Hierarchy I currently have this hierarchy and binding:
Table - ITEM_FIELDS
...Body Row - DATA
......Cell - POSNR
......Cell - QTY
......Cell - MATNR
......Subform - ItemTexts
.........Table - ITEM_TEXTS
............Body Row - DATA
...............Cell - DESCRIPTION
......Cell - DATE
Now I am trying to add the SERIAL_NOS table into the ITEM_FIELDS/DATA body row right after the DATE cell - but I am not allowed to drag anything into the table structure.
Does anybody have an ida how I can achieve this, please?
Kind regards,
Claus Christensen

HI,
Set the body page as flowed and set the tables also flowed.
go to bodypage>object->subform-->select flowed option.
I thihnk this will work..if u are getting all the records properly into the tables 1 and 2.
Thanks,
Mahdukar

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,
Nested tables are not supported by this version of VC.
This is an architectural problem and I don't know of any work around for it (other than changing the WS).
Nested tables are and will be supported in VC CE (7.1).
Regards,
Shay

Nested Table Problem

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