Creating relation in child tables

Hi
I have two child tables to the master table tblClients as per image below at the end; tblClientUniforms.ClientID<-Client.ID->tblClientRates.ClientID.
Now I want to restrict tblClientUniforms.Role values for a client to only those values that are in tblClientRates.Role for the same client. What sort of relation do I need between tblClientUniforms.Role and tblClientRates.Role and how do I create
it? When I try to drag one role field on the other in SQL Server Diagram I get an 'The columns in table 'tblClientUniforms' do not match an existing primary key or UNIQUE constraint' error.
Thanks
Regards

Hi
Just to clarify, all three tables contain a column named Role, now you want that Role value will unique for all three tables? Do you have client id in all tables? You can create an unique constraint on ClientID,RoledID...
Best Regards,Uri Dimant SQL Server MVP,
http://sqlblog.com/blogs/uri_dimant/
MS SQL optimization: MS SQL Development and Optimization
MS SQL Consulting:
Large scale of database and data cleansing
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Improves MS SQL Database Performance
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Role in only the two child tables, not in tblClients. Unique would be ClientID+Role in both child tables.

Similar Messages

Unable to find the deleted record in the child table

Hi,
I have two tables and a trigger:
CREATE TABLE parent (a INTEGER, b CHAR(10));
CREATE TABLE child (c CHAR(10), d INTEGER);
CREATE TRIGGER parent_trigger
AFTER INSERT OR DELETE OR UPDATE ON parent
REFERENCING NEW AS newRow
FOR EACH ROW
BEGIN
INSERT INTO child VALUES(:newRow.b, :newRow.a);
END parent_trigger;
Now my point is , after insertion or updation of the records in the parent table, the records are created successfully in child table...
BUT.. on deleting a record the record is deleted successfully from parent table..but the record is not displayed in the child table.
SQL> delete from parent where A=2;
1 row deleted.
SQL> select * from parent;
no rows selected
SQL> set feedback on
SQL> select * from child;
C D
a 1
a 2
3 rows selected.
Please help.

What's the value of :NEW variables after deletion? NULL! What gets inserted into your child table? You guess it... :)

How to find the level of each child table in a relational model?

Earthlings,
I need your help and I know that, 'yes, we can change'. Change this thread to a answered question.
So: How to find the level of each child table in a relational model?
I have a relacional database (9.2), all right?!
     O /* This is a child who makes N references to each of the follow N parent tables (here: three), and so on. */
    /↑\ Fks
   O"O O" <-- level 2 for first table (circle)
/↑\ Fks
"o"o"o" <-- level 1 for middle table (circle)
   ↑ Fk
"º"Tips:
- each circle represents a table;
- red tables no have foreign key
- the table in first line of tree, for example, has level 3, but when 3 becomes N? How much is N? This's the question.
I started thinking about the following:
First I have to know how to take the children:
select distinct child.table_name child
from all_cons_columns father
join all_cons_columns child
using (owner, position)
join (select child.owner,
               child.constraint_name fk,
               child.table_name child,
               child.r_constraint_name pk,
               father.table_name father
          from all_constraints father, all_constraints child
         where child.r_owner = father.owner
           and child.r_constraint_name = father.constraint_name
           and father.constraint_type in ('P', 'U')
           and child.constraint_type = 'R'
           and child.owner = 'OWNER') aux
using (owner)
where child.constraint_name = aux.fk
   and child.table_name = aux.child
   and father.constraint_name = aux.pk
   and father.table_name = aux.father;Thinking...
Let's Share!
My thanks in advance,
Philips
Edited by: BluShadow on 01-Apr-2011 15:08
formatted the code and the hierarchy for readbility

Justin,
Understood.
Nocycle not work in 9.2 and, even that would work, would not be appropriate.
With your help, I decided a much simpler way (but there is still a small problem, <font color=red>IN RED</font>):
-- 1
declare
type udt_roles is table of varchar2(30) index by pls_integer;
cRoles udt_roles;
begin
execute immediate 'create user philips
    identified by philips';
select granted_role bulk collect
    into cRoles
    from user_role_privs
   where username = user;
for i in cRoles.first .. cRoles.count loop
    execute immediate 'grant ' || cRoles(i) || ' to philips';
end loop;
end;
-- 2
create table philips.root1(root1_id number,
                           constraint root1_id_pk primary key(root1_id)
                           enable);
grant all on philips.root1 to philips;
create or replace trigger philips.tgr_root1
   before delete or insert or update on philips.root1
   begin
     null;
   end;
create table philips.root2(root2_id number,
                           constraint root2_id_pk primary key(root2_id)
                           enable);
grant all on philips.root2 to philips;
create or replace trigger philips.tgr_root2
   before delete or insert or update on philips.root2
   begin
     null;
   end;
create table philips.node1(node1_id number,
                           root1_id number,
                           node2_id number,
                           node4_id number,
                           constraint node1_id_pk primary key(node1_id)
                           enable,
                           constraint n1_r1_id_fk foreign key(root1_id)
                           references philips.root1(root1_id) enable,
                           constraint n1_n2_id_fk foreign key(node2_id)
                           references philips.node2(node2_id) enable,
                           constraint n1_n4_id_fk foreign key(node4_id)
                           references philips.node4(node4_id) enable);
grant all on philips.node1 to philips;
create or replace trigger philips.tgr_node1
   before delete or insert or update on philips.node1
   begin
     null;
   end;
create table philips.node2(node2_id number,
                           root1_id number,
                           node3_id number,
                           constraint node2_id_pk primary key(node2_id)
                           enable,
                           constraint n2_r1_id_fk foreign key(root1_id)
                           references philips.root1(root1_id) enable,
                           constraint n2_n3_id_fk foreign key(node3_id)
                           references philips.node3(node3_id) enable);
grant all on philips.node2 to philips;
create or replace trigger philips.tgr_node2
   before delete or insert or update on philips.node2
   begin
     null;
   end;
create table philips.node3(node3_id number,
                           root2_id number,
                           constraint node3_id_pk primary key(node3_id)
                           enable,
                           constraint n3_r2_id_fk foreign key(root2_id)
                           references philips.root2(root2_id) enable);
grant all on philips.node3 to philips;
create or replace trigger philips.tgr_node3
   before delete or insert or update on philips.node3
   begin
     null;
   end;
create table philips.node4(node4_id number,
                           node2_id number,
                           constraint node4_id_pk primary key(node4_id)
                           enable,
                           constraint n4_n2_id_fk foreign key(node2_id)
                           references philips.node2(node2_id) enable);
grant all on philips.node4 to philips;
create or replace trigger philips.tgr_node4
   before delete or insert or update on philips.node4
   begin
     null;
   end;
-- out of the relational model
create table philips.node5(node5_id number,
                           constraint node5_id_pk primary key(node5_id)
                           enable);
grant all on philips.node5 to philips;
create or replace trigger philips.tgr_node5
   before delete or insert or update on philips.node5
   begin
     null;
   end;
-- 3
create table philips.dictionary(table_name varchar2(30));
insert into philips.dictionary values ('ROOT1');
insert into philips.dictionary values ('ROOT2');
insert into philips.dictionary values ('NODE1');
insert into philips.dictionary values ('NODE2');
insert into philips.dictionary values ('NODE3');
insert into philips.dictionary values ('NODE4');
insert into philips.dictionary values ('NODE5');
--4
create or replace package body philips.pck_restore_philips as
procedure sp_select_tables is
    aExportTablesPhilips     utl_file.file_type := null; -- file to write DDL of tables
    aExportReferencesPhilips utl_file.file_type := null; -- file to write DDL of references
    aExportIndexesPhilips    utl_file.file_type := null; -- file to write DDL of indexes
    aExportGrantsPhilips     utl_file.file_type := null; -- file to write DDL of grants
    aExportTriggersPhilips   utl_file.file_type := null; -- file to write DDL of triggers
    sDirectory               varchar2(100) := '/app/oracle/admin/tace/utlfile'; -- directory \\bmduhom01or02
    cTables                  udt_tables; -- collection to store table names for the relational depth
begin
    -- omits all referential constraints:
    dbms_metadata.set_transform_param(dbms_metadata.session_transform, 'REF_CONSTRAINTS', false);
    -- omits segment attributes (physical attributes, storage attributes, tablespace, logging):
    dbms_metadata.set_transform_param(dbms_metadata.session_transform, 'SEGMENT_ATTRIBUTES', false);
    -- append a SQL terminator (; or /) to each DDL statement:
    dbms_metadata.set_transform_param(dbms_metadata.session_transform, 'SQLTERMINATOR', true);
    -- create/open files for export DDL:
    aExportTablesPhilips := utl_file.fopen(sDirectory, 'DDLTablesPhilips.pdc', 'w', 32767);
    aExportReferencesPhilips := utl_file.fopen(sDirectory, 'DDLReferencesPhilips.pdc', 'w', 32767);
    aExportIndexesPhilips := utl_file.fopen(sDirectory, 'DDLIndexesPhilips.pdc', 'w', 32767);
    aExportGrantsPhilips := utl_file.fopen(sDirectory, 'DDLGrantsPhilips.pdc', 'w', 32767);
    aExportTriggersPhilips := utl_file.fopen(sDirectory, 'DDLTriggersPhilips.pdc', 'w', 32767);
    select d.table_name bulk collect
      into cTables -- collection with the names of tables in the schema philips
      from all_tables t, philips.dictionary d
     where owner = 'PHILIPS'
       and t.table_name = d.table_name;
    -- execution
    sp_seeks_ddl(aExportTablesPhilips,
                 aExportReferencesPhilips,
                 aExportIndexesPhilips,
                 aExportGrantsPhilips,
                 aExportTriggersPhilips,
                 cTables);
    -- closes all files
    utl_file.fclose_all;
end sp_select_tables;
procedure sp_seeks_ddl(aExportTablesPhilips     in utl_file.file_type,
                         aExportReferencesPhilips in utl_file.file_type,
                         aExportIndexesPhilips    in utl_file.file_type,
                         aExportGrantsPhilips     in utl_file.file_type,
                         aExportTriggersPhilips   in utl_file.file_type,
                         cTables                  in out nocopy udt_tables) is
    cDDL       clob := null; -- colletion to save DDL
    plIndex    pls_integer := null;
    sTableName varchar(30) := null;
begin
    for i in cTables.first .. cTables.count loop
      plIndex    := i;
      sTableName := cTables(plIndex);
       * Retrieves the DDL and the dependent DDL into cDDL clob       *
      * for the selected table in the collection, and writes to file.*
      begin
        cDDL := dbms_metadata.get_ddl('TABLE', sTableName, 'PHILIPS');
        sp_writes_ddl(aExportTablesPHILIPS, cDDL);
      exception
        when dbms_metadata.object_not_found then
          null;
      end;
      begin
        cDDL := dbms_metadata.get_dependent_ddl('REF_CONSTRAINT', sTableName, 'PHILIPS');
        sp_writes_ddl(aExportReferencesPhilips, cDDL);
      exception
        when dbms_metadata.object_not_found2 then
          null;
      end;
      begin
        cDDL := dbms_metadata.get_dependent_ddl('INDEX', sTableName, 'PHILIPS');
        sp_writes_ddl(aExportIndexesPhilips, cDDL);
      exception
        when dbms_metadata.object_not_found2 then
          null;
      end;
      begin
        cDDL := dbms_metadata.get_dependent_ddl('OBJECT_GRANT', sTableName, 'PHILIPS');
        sp_writes_ddl(aExportGrantsPhilips, cDDL);
      exception
        when dbms_metadata.object_not_found2 then
          null;
      end;
      begin
        cDDL := dbms_metadata.get_dependent_ddl('TRIGGER', sTableName, 'PHILIPS');
        sp_writes_ddl(aExportTriggersPhilips, cDDL);
      exception
        when dbms_metadata.object_not_found2 then
          null;
      end;
    end loop;
end sp_seeks_ddl;
procedure sp_writes_ddl(aExport in utl_file.file_type,
                          cDDL    in out nocopy clob) is
    pLengthDDL pls_integer := length(cDDL);
    plQuotient pls_integer := null;
    plRemainder pls_integer := null;
begin
      * Register variables to control the amount of lines needed   *
     * for each DDL and the remaining characters to the last row. *
    select trunc(pLengthDDL / 32766), mod(pLengthDDL, 32766)
      into plQuotient, plRemainder
      from dual;
      * Join DDL in the export file.                            *
     * ps. 32766 characters + 1 character for each line break. *
    -- if the size of the DDL is greater than or equal to limit the line ...
    if plQuotient >= 1 then
      -- loops for substring (lines of 32766 characters + 1 break character):
      for i in 1 .. plQuotient loop
        utl_file.put_line(aExport, substr(cDDL, 1, 32766));
        -- removes the last line, of clob, recorded in the buffer:
        cDDL := substr(cDDL, 32767, length(cDDL) - 32766);
      end loop;
    end if;
      * If any remains or the number of characters is less than the threshold (quotient = 0), *
     * no need to substring.                                                                 *
    if plRemainder > 0 then
      utl_file.put_line(aExport, cDDL);
    end if;
    -- record DDL buffered in the export file:
    utl_file.fflush(aExport);
end sp_writes_ddl;
begin
-- executes main procedure:
sp_select_tables;
end pck_restore_philips;<font color="red">The problem is that I still have ...
When creating the primary key index is created and this is repeated in the file indexes.
How to avoid?</font>

Parent - child tables foreign key relation ship

Hi All,
we have 600 hundred tables ..i would like to print a hierarchial tree based on the foreigh key relathionship
i tried my best but i couldnt.
parent table
child table 1
childtable3
child table 2
and so
Can somebody help me out with a query?
Thanks,
kt

CREATE OR REPLACE FUNCTION get_child_tables (
ptable VARCHAR2,
powner VARCHAR2 DEFAULT 'SCOTT',
plevel NUMBER DEFAULT 10
RETURN stringarray
-- -- create this ON SQL*PLUS "CREATE OR REPLACE TYPE STRINGARRAY AS TABLE OF VARCHAR2(50);"
-- AUTHID CURRENT_USER
PIPELINED
AUTHOR DATE VERSION COMMENTS
======================================================================================
[email protected] 26-OCT-2009 1.0 Developed to ease developers effort to find Nth level of Referential integrity
======================================================================================
-- PURPOSE -> To find PARENT=> CHILD relational TABLE(S) in Oracle upto a depth max N Level.
--SYNTAX TO USE
SELECT * FROM TABLE( get_child_tables('DEPT','SCOTT',3)); Store this query in a file for your use
SELECT * FROM TABLE( get_child_tables('EMPLOYEE')); Store this query in a file for your use
-- RESULTS looks as below
--1 => DEPT
--2 => EMP
--2 => EMP2
--3 => EMP_CHILD
--3 => EMP2_CHILD
-- and so on
--This can be leveraged to use in any oracle database REGION 10g having and above.
--This FUNCTION gives formatted result of the Oracle 10g Hierarchical query result coded in the cursor
--to find MASTER => CHILD relational TABLE(S) upto a depth max 10 Level.
--The result of the PIPELINED function can be retrieved using Oracle new operator
--TABLE(array name) in SQL query.
--Due to the AUTHID CURRENT_USER compiler directive any user can use based on his/her access privileges on the database.
--GRANT EXECUTE ON SCOTT.get_child_tables TO PUBLIC;
--CREATE OR REPLACE PUBLIC SYNONYM get_child_tables FOR SCOTT.get_child_tables;
IS
atname stringarray := stringarray ();
-- create this ON SQL*PLUS CREATE OR REPLACE TYPE STRINGARRAY AS TABLE OF VARCHAR2(50);
vlevel NUMBER;
vtname VARCHAR2 (50);
nindex NUMBER := 0;
bprocessed BOOLEAN := FALSE;
CURSOR c1 (powner_in IN VARCHAR2, ptable_in VARCHAR2, plevel_in NUMBER)
IS
SELECT LEVEL, LPAD (' ', (LEVEL - 1) * 2, ' ') || pt AS "TNAME"
FROM (SELECT a.owner w1, a.table_name pt, a.constraint_name c1,
a.r_constraint_name r1, b.owner w2, b.table_name ct,
b.constraint_name c2, b.r_constraint_name r2
FROM all_constraints a, all_constraints b
WHERE a.constraint_name = b.r_constraint_name(+)
AND a.owner = b.owner(+)
AND a.owner =
UPPER (powner)
-- Change Owner here while testing
--AND A.r_constraint_name IS NULL
AND a.constraint_type IN ('P', 'R')) v1
START WITH pt =
UPPER
(ptable)
-- Change your master table here while testing the QUERY
CONNECT BY PRIOR ct = pt AND LEVEL <= plevel;
-- Change lavel here while testing
BEGIN
atname.EXTEND;
atname (1) := 'NOTHING';
OPEN c1 (powner, ptable, plevel);
LOOP
bprocessed := FALSE;
FETCH c1
INTO vlevel, vtname;
IF nindex > 1 AND atname (atname.LAST - 1) = vtname
THEN
--DBMS_OUTPUT.PUT_LINE('2 ==== vtname ' ||vtname || ' '|| atname.count|| ' '||atname.last || ' '||atname( atname.last-1));
bprocessed := TRUE;
END IF;
IF NOT bprocessed
THEN
nindex := nindex + 1;
atname.EXTEND;
atname (nindex) := vtname;
PIPE ROW (vlevel || ' => ' || vtname);
DBMS_OUTPUT.put_line ( ' **** nindex - atname( nindex) '
|| nindex
|| ' - '
|| atname (nindex)
DLOG('ADDING ',vTname); A LOGGING ATONOMUS PROCEDURE FOR DEBUG PURPOSE
END IF;
EXIT WHEN c1%NOTFOUND;
END LOOP;
CLOSE c1;
FOR i IN 1 .. atname.COUNT
LOOP
DBMS_OUTPUT.PUT_LINE('atname (i) ' ||atname (i));
END LOOP;
RETURN;
EXCEPTION
WHEN no_data_needed
THEN -- THIS EXCEPTION HAS TO BE THERE TO GET THE FUCTION WORKABLE
DBMS_OUTPUT.put_line (SQLERRM);
RETURN;
END get_child_tables;
/

SQL Server 2012 Management Studio:In the Database, how to print out or export the old 3 dbo Tables that were created manually and they have a relationship for 1 Parent table and 2 Child tables?How to handle this relationship in creating a new XML Schema?

Hi all,
Long time ago, I manually created a Database (APGriMMRP) and 3 Tables (dbo.Table_1_XYcoordinates, dbo.Table_2_Soil, and dbo.Table_3_Water) in my SQL Server 2012 Management Studio (SSMS2012). The dbo.Table_1_XYcoordinates has the following columns: file_id,
Pt_ID, X, Y, Z, sample_id, Boring. The dbo.Table_2_Soil has the following columns: Boring, sample_date, sample_id, Unit, Arsenic, Chromium, Lead. The dbo.Table_3_Water has the following columns: Boring, sample_date, sample_id, Unit, Benzene, Ethylbenzene,
Pyrene. The dbo.Table_1_XYcoordinates is a Parent Table. The dbo.Table_2_Soil and the dbo.Table_3_Water are 2 Child Tables. The sample_id is key link for the relationship between the Parent Table and the Child Tables.
Problem #1) How can I print out or export these 3 dbo Tables?
Problem #2) If I right-click on the dbo Table, I see "Start PowerShell" and click on it. I get the following error messages: Warning: Failed to load the 'SQLAS' extension: An exception occurred in SMO while trying to manage a service.
--> Failed to retrieve data for this request. --> Invalid class. Warning: Could not obtain SQL Server Service information. An attemp to connect to WMI on 'NAB-WK-02657306' failed with the following error: An exception occurred in SMO while trying
to manage a service. --> Failed to retrieve data for this request. --> Invalid class. .... PS SQLSERVER:\SQL\NAB-WK-02657306\SQLEXPRESS\Databases\APGriMMRP\Table_1_XYcoordinates>   What causes this set of error messages? How can
I get this problem fixed in my PC that is an end user of the Windows 7 LAN System? Note: I don't have the regular version of Microsoft Visual Studio 2012 in my PC. I just have the Microsoft 2012 Shell (Integrated) program in my PC.
Problem #3: I plan to create an XML Schema Collection in the "APGriMMRP" database for the Parent Table and the Child Tables. How can I handle the relationship between the Parent Table and the Child Table in the XML Schema Collection?
Problem #4: I plan to extract some results/data from the Parent Table and the Child Table by using XQuery. What kind of JOIN (Left or Right JOIN) should I use in the XQuerying?
Please kindly help, answer my questions, and advise me how to resolve these 4 problems.
Thanks in advance,
Scott Chang

In the future, I would recommend you to post your questions one by one, and to the appropriate forum. Of your questions it is really only #3 that fits into this forum. (And that is the one I will not answer, because I have worked very little with XSD.)
1) Not sure what you mean with "print" or "export", but when you right-click a database, you can select Tasks from the context menu and in this submenu you find "Export data".
2) I don't know why you get that error, but any particular reason you want to run PowerShell?
4) If you have tables, you query them with SQL, not XQuery. XQuery is when you query XML documents, but left and right joins are SQL things. There are no joins in XQuery.
As for left/right join, notice that these two are equivalent:
SELECT ...
FROM   a LEFT JOIN b ON a.col = b.col
SELECT ...
FROM   b RIGHT JOIN a ON a.col = b.col
But please never use RIGHT JOIN - it gives me a headache!
There is nothing that says that you should use any of the other. In fact, if you are returning rows from parent and child, I would expect an inner join, unless you want to cater for parents without children.
Here is an example where you can study the different join types and how they behave:
CREATE TABLE apple (a int    NOT NULL PRIMARY KEY,
b varchar(23) NOT NULL)
INSERT apple(a, b)
   VALUES(1, 'Granny Smith'),
   (2, 'Gloster'),
   (4, 'Ingrid-Marie'),
   (5, 'Milenga')
CREATE TABLE orange(c int NOT NULL PRIMARY KEY,
d varchar(23) NOT NULL)
INSERT orange(c, d)
   VALUES(1, 'Agent'),
   (3, 'Netherlands'),
   (4, 'Revolution')
SELECT a, b, c, d
FROM   apple
CROSS JOIN orange
SELECT a, b, c, d
FROM   apple
INNER JOIN orange ON apple.a = orange.c
SELECT a, b, c, d
FROM   apple
LEFT   OUTER JOIN orange ON apple.a = orange.c
SELECT a, b, c, d
FROM   apple
RIGHT OUTER JOIN orange ON apple.a = orange.c
SELECT a, b, c, d
FROM   apple
FULL OUTER JOIN orange ON apple.a = orange.c
go
DROP TABLE apple, orange
Erland Sommarskog, SQL Server MVP, [email protected]

How to create ddl for partitioning for a child table?

Hi folks,
I am new to the partitioning topic. I red some manuals and tutorials but I did not found exactly what I need. So I would ask for your help.
I have two tables.
The partitioning of the master table is clear:
create TABLE ASP_PARTITION_TABLE_MASTER
MASTER_ID VARCHAR2(20) NOT NULL
, TIMESTAMP DATE
, DATA VARCHAR2(20)
, CONSTRAINT ASP_PARTITION_TABLE_MASTE_PK PRIMARY KEY
MASTER_ID
USING INDEX
ENABLE
PARTITION BY RANGE (TIMESTAMP)
PARTITION PARTITION1 VALUES LESS THAN (TO_DATE('20090101','YYYYMMDD')) NOCOMPRESS
, PARTITION PARTITION2 VALUES LESS THAN (TO_DATE('20100101','YYYYMMDD')) NOCOMPRESS
, PARTITION PARTITION3 VALUES LESS THAN (TO_DATE('20110101','YYYYMMDD')) NOCOMPRESS
This table should be partitioned by a timestamp.
Now comes the difficulty:
I have a child table which has the master_id as foreign key. The slave table should also be partitioned by the timestamp - but this one occurs only in the master table.
CREATE TABLE ASP_PARTITION_TABLE_SLAVE
SLAVE_ID VARCHAR2(20) NOT NULL
, FK_MASTER_ID NUMBER(10)
, DATA1 VARCHAR2(20)
, DATA2 VARCHAR2(20)
, COLUMN1 VARCHAR2(20)
, CONSTRAINT ASP_PK_SLAVE PRIMARY KEY
SLAVE_ID
ENABLE
ALTER TABLE ASP_PARTITION_TABLE_SLAVE
ADD CONSTRAINT ASP_FK_MASTER_IS FOREIGN KEY
SLAVE_ID
REFERENCES ASP_PARTITION_TABLE_MASTER
MASTER_ID
ON DELETE CASCADE ENABLE;
How can I create such a range partition for the slave table?
PS: Currently we are using oracle 10.2 but we will upgrade to oracle 11g in near future.
Thanks in advance,
Andreas

@sb92075:
seems if I should give more details:
the parent table is holding the master_id, the timestamp and plenty of general information which is valid for all children.
Each parent has between 5 and 50 children which contain different data items. So our child table is much bigger than the parent table.
Our selects are joining parent and child table filtered by the timestamp and some other indexed rows, so we are not saving the same timestamp redundantly.
@bluefrog
With the partitioning we would like to reach the following goals:
1. gain more performance (quicker response time)
2. get the ability to archive and drop partitions which are older than a specific timestamp. (We only need to keep the data of the last 1.5 years so we would like to drop the complete partition / tablespace instead of using a delete-statement which generates much load (transaction, archive, logging)).
Thank you for your links. I will have a look on it.
But due to the archiving issue we would also like split up the child table by the timestamp of the parent table.
Regards, Andreas

How to create the reation between two tables without creating relation

Hi,
I have three tables.( A,B and C)
I created relation between A,B and A,C.
I want to create the relation between B,C without using realtion in oracle forms.
Please do the needful.

ok, now i understand your problem. It is a case of one-many-many relation between three blocks.
In this situation what i personally follow that - save records in between when it ask for a commit. And i shall advice you to follow that only. This is the safe and easy method.
Otherwise,
1> make your third block a non-database block.
2> When finish entering/modifying each data set related to 2nd block - insert/update/delete the data grammatically into a temporary table. and after that clear the 3rd block.
3> you need to reload the record in 3rd block from the temporary table when you move to a record of 2nd block that has already been entered.
4> now when you finally commit your form the insert/update/delete record from the temporary table into the final 3rd table.
Now follow which ever steps is suitable for you.
Regards,
Tarun

A query related to creating Indexes for a table

Hi ,
I am in a J2EE Banking Project using Oracle 10g as our Database .
We have created Indexes on some tables .
But this this is not called by any of our Java class .
Could anybody please let me know how these Indexes will actually improve the Performance .
Waiting for your replies .
Thanks in advance .

But in our safety database (huge & ofcourse Oracle), we use indexes just because to avoid duplicates, improve data retrieval and so on.As you pointed out indexes can do 2 things for you: enforce uniqueness and (hopefully) improve data retrieval. Enforcing uniqueness is pretty basic, but indexes don't always improve performance. Under the wrong condtions indexes can hurt performance. The ideas below refer to B-TREE indexes; other kinds of indexes have other considerations
Indexes add overhead to insert, delete, and (hopefully not - updating index columns is a Bad Idea), enough so that if you're inserting a lot of rows into a large table it is sometimes helpful to drop the indexes, load the data, and recreate the indexes when done to help performance. The more indexes a table has the more overhead DML statements need to maintain them.
Indexes help query performance under a couple of conditions. When using them as join keys to retrieve a small percentage of rows in a table (< 20% maybe; there is no firm number) indexes can help. When a query can read its columns from an index only (such as counts against a primary key index) index access can be faster than table access.
Indexes can hurt performance by adding overhead for maintenance if the index is never actually used or if used to read most of the rows in a table when a full table scan would be more efficient (why go through the extra effort to read the index and then table when you'll have to read most of the rows in the table anyway?).

Hit the exception when editing the value of row key column in a new created row in a table

1. I created a view object with 2 entity objects (parent table: YARD_FIXED_SLOT - child table: YARD_FIXED_SLOT_DETAIL) and the primary key of child table composes of 2 columns ( one of them is FK: YardFixedSlotDetail.FIXED_SLOT_ID REFERENCES YARD_FIXED_SLOT(FIXED_SLOT_ID)
SQL queries:
SELECT YardFixedSlotDetail.FIXED_SLOT_ID,
       YardFixedSlotDetail.MODIFIED_DT,
       YardFixedSlotDetail.SLOT_FROM_N,
       YardFixedSlotDetail.SLOT_TO_N,
       YardFixedSlotDetail.USER_ID,
       YardFixedSlot.BLOCK_M,
       YardFixedSlot.BLOCK_N,
       YardFixedSlot.FIXED_SLOT_ID AS FIXED_SLOT_ID1,
       YardFixedSlot.SECTION_N,
       YardFixedSlot.STATUS_C,
       YardFixedSlot.TERMINAL_C
FROM YARD_FIXED_SLOT_DETAIL YardFixedSlotDetail, YARD_FIXED_SLOT YardFixedSlot
YardFixedSlotDetail.FIXED_SLOT_ID = YardFixedSlot.FIXED_SLOT_ID
2. I dragged this view object into JSF page as an ediable table and add 'add' button to add a new row to the table. and the handling logic in managed bean is as followed. now one new row can be added succesfully in the table.
    public void processSlotDetailCreation(ActionEvent ae)
        DCBindingContainer bindings = (DCBindingContainer)getBindings();
        DCIteratorBinding dciter = bindings.findIteratorBinding("YardFixedSlotDetailFindAllByBlock1Iterator");
        Row row = dciter.getCurrentRow();
        //get the last row for the index and create a new row for the //user to edit
        Row lastRow = dciter.getNavigatableRowIterator().last();
        YardFixedSlotDetailFindAllByBlockRowImpl newRow = (YardFixedSlotDetailFindAllByBlockRowImpl)dciter.getNavigatableRowIterator().createRow();
        newRow.setFixedSlotId(new Integer(21));
        newRow.setUserId("adftest");
        newRow.setModifiedDt(new Timestamp(System.currentTimeMillis()));
        //bug exist here
        newRow.setSlotFromN(new Integer(1));
        //newRow.setSlotToN(new Integer(1));
        newRow.setNewRowState(Row.STATUS_INITIALIZED);
        int lastRowIndex = dciter.getNavigatableRowIterator().getRangeIndexOf(lastRow);
        dciter.getNavigatableRowIterator().insertRowAtRangeIndex( lastRowIndex+1, newRow);
        // make the new row the current row of the table
        dciter.setCurrentRowIndexInRange(lastRowIndex);
        dciter.setCurrentRowWithKey(newRow.getKey().toStringFormat(true));
        //table should have its displayRow attribute set to //"selected"
       // AdfFacesContext.getCurrentInstance().addPartialTarget(slotDetailsTable);
3. When filling in a new value for SlotFromN column (note that SlotFromN column and FixedSlotId column are the rowKey), hit the exception below:
[2013-12-04T13:04:28.866+08:00] [DefaultServer] [ERROR] [] [oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter] [tid: [ACTIVE].ExecuteThread: '14' for queue: 'weblogic.kernel.Default (self-tuning)'] [userId: <anonymous>] [ecid: eb5e281b-6b07-4c17-987e-049792c97dda-000001bf,0] [APP: YPCApp] [DSID: 0000KAvzIaA5qYWFLzmJOA1IbdqZ000003] ADF_FACES-60096:Server Exception during PPR, #7[[
oracle.jbo.InvalidOperException: JBO-29114 ADFContext is not setup to process messages for this exception. Use the exception stack trace and error code to investigate the root cause of this exception. Root cause error code is JBO-34014. Error message parameters are {0=oracle.jbo.Key[21 null ], 1=root}
at oracle.jbo.uicli.binding.JUCtrlHierBinding.bringNodeToRangeKeyPath(JUCtrlHierBinding.java:859)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlHierBinding.bringNodeToRangeKeyPath(FacesCtrlHierBinding.java:122)
at oracle.adfinternal.view.faces.model.binding.RowDataManager.setRowKey(RowDataManager.java:131)
at oracle.adfinternal.view.faces.model.binding.FacesCtrlHierBinding$FacesModel.setRowKey(FacesCtrlHierBinding.java:951)
at org.apache.myfaces.trinidad.component.UIXCollection.setRowKey(UIXCollection.java:527)
at org.apache.myfaces.trinidad.component.UIXTable.setRowKey(UIXTable.java:760)
at oracle.adfinternal.view.faces.renderkit.rich.TableRendererUtils._processStampedChildrenForActiveRow(TableRendererUtils.java:2950)
at oracle.adfinternal.view.faces.renderkit.rich.TableRendererUtils.processFacetsAndChildrenForClickToEdit(TableRendererUtils.java:1604)
at oracle.adfinternal.view.faces.renderkit.rich.TableRenderer.processFacetsAndChildrenForClickToEdit(TableRenderer.java:352)
at oracle.adfinternal.view.faces.renderkit.rich.TableRenderer.decodeChildren(TableRenderer.java:193)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1347)
at org.apache.myfaces.trinidad.component.UIXCollection.processDecodes(UIXCollection.java:226)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at oracle.adf.view.rich.component.fragment.UIXRegion.decodeChildrenImpl(UIXRegion.java:605)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXForm.processDecodes(UIXForm.java:75)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildrenImpl(UIXComponentBase.java:1365)
at org.apache.myfaces.trinidad.component.UIXComponentBase.decodeChildren(UIXComponentBase.java:1351)
at org.apache.myfaces.trinidad.component.UIXComponentBase.processDecodes(UIXComponentBase.java:1124)
at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1176)
at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:933)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl$ApplyRequestValuesCallback.invokeContextCallback(LifecycleImpl.java:1574)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl._executePhase(LifecycleImpl.java:416)
at oracle.adfinternal.view.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:225)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:280)
at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:254)
at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:136)
at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:341)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:25)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:192)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.adfinternal.view.faces.webapp.rich.RegistrationFilter.doFilter(RegistrationFilter.java:106)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:478)
at oracle.adfinternal.view.faces.activedata.AdsFilter.doFilter(AdsFilter.java:60)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl$FilterListChain.doFilter(TrinidadFilterImpl.java:478)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:303)
at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:208)
at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:137)
at java.security.AccessController.doPrivileged(Native Method)
at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:460)
at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:120)
at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:217)
at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:81)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:225)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:79)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3367)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3333)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:57)
at weblogic.servlet.internal.WebAppServletContext.doSecuredExecute(WebAppServletContext.java:2220)
at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2146)
at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2124)
at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1564)
at weblogic.servlet.provider.ContainerSupportProviderImpl$WlsRequestExecutor.run(ContainerSupportProviderImpl.java:254)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:295)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:254)
4. I think problem maybe is related with row key, but I need end user to change rowkey column value. does it allow changing the value of column as row key? I found this problem maybe only occur for new created row. For those existing rows, even I change the value of row key column, no such problem occurred, how do I handle this situation?
Appriciate if anybody can help.

Hi Bangaram,
Thank you for your reply.
The error: "Root cause error code is JBO-34014. Error message parameters are {0=oracle.jbo.Key[21 null ], 1=root} "
I didn't create master records, I just used joint queries for information display of both master and detail. I am trying to create a row in the UI table to create a new detail record and master record already exists.
The row key for new added row in UI rich table is [21 null ], row key of detail records table composes of 2 columns. 21 is for FixedSlotId and null is for SlotFromN. when I provide a new value for SlotFromN column in UI rich table, problem will occur.

Commit Rollback for Parent & Child table

Hi,
I need to load data to a parent table and child table (Record by Record), i.e one record will be loaded to the parent table and the related child record will be loaded to child table.
After first record loaded to child table, the next record will be loaded to the parent table.
My requirement is, I should not commit the parent table before the child record is transferred (so that i can rollback if my record got failed). So I have set the parent table IKM commit option to NO. Because of this, my child record is not loaded to the correcsponding target table, its failed because the parent record is not commited.
Do we have any possiblities to overcome this issue.
Thanks in Advance,
Ram Mohan T

Cezar,
I couldn't make the CKM options to "No Commit". When i did that i am getting the following error at step "16 - Control - CUSTOMER_DET - insert PK errors" ,
12838 : 72000 : java.sql.SQLException: ORA-12838: cannot read/modify an object after modifying it in parallel.
This error occurs at the CKM. so i have made all the CKM options to "commit" and IKM, LKM to "No Commit". It seems to be fine.
Cezar,
I have some plan for the scenario that i mentioned in the previous update (One dept id and all related employees). Please verify this,
1) create a procedure which extracts dept_id from source tab and passes it to the scenario(in target tab) of a package.
2) This package has the variable of dept_id, interface1 which loads data to dept and following that another procedure(2).
3) This procedure2 will extract the emp_id that corresponds to the value of the variable dept_id. And passes this emp_id to tha scenario in target tab.
4) This scenario is of a package which has the emp_id variable and interface2 for loading employees.
While executing this plan, the problem is,
1) Interface1 which loads Dept_Id is not commited (due to the KMs with commit set to "No Commit"), so that the employee records are getting loaded to the error table.
2) I have made the interface1 KM commit option to "Default: Yes " (But still the Knowledge modules steps are No commit), but still the child records are getting loaded to error table.
3) As per the above scenario, all these transforamtions are not taking in the same transaction. Thats the problem i believe.
Do we have any possiblities to overcome this Cezar?
Thanks in Advance,
Ram Mohan T
Edited by: T. Ram Mohan on Mar 5, 2009 11:43 AM

How to know how many child tables are present for a parent table

hi all,
i created a table USERS in db user pavan (pavan.users (id primary key) ).
and child tables are may be in the same user pavan or in other users of database also.
for the other users i given relative grant permissions to access this USERS table and maintain relation to it.
now, my requirement is how to check the number of references to pavan.users.id
how many tables are dependent on it.
thanks in advance.
regards
pavan

Try this
select a.owner,
       a.constraint_name,
       a.column_name,
       a.table_name,
       c.table_name Referenced_table,
       d.column_name referenced_column
from
        all_cons_columns a,
        all_constraints b,
        all_constraints c,
        all_cons_columns d
where a.table_name=b.table_name
and a.constraint_name=b.constraint_name
and b.constraint_type='R'
and b.r_constraint_name=c.constraint_name
and c.constraint_name=d.constraint_name
and a.owner='PAVAN'
and c.table_name='USERS'
and d.column_name='ID'

Parent child table question

HI i have some questions which iam unclear please help me
1) in a parent child relationship.. is it always 1-m relation from parent to child?
2) can a parent table be on many side? i.e can a child - parent be 1- m?
3) if i itake employee as child table and department as parent table then dept_id will be the foreigh key in employee table ...
Now if i want to add a new employee who is not assigned to any department can i add it ?
4) In an identifying relationship ... a child table has concatenated primary key (pk of child,pk of parent)
should we still add any other primary key to the table....in addition to this concatenated key?
thanks in advance
raj

Hi!
1) in a parent child relationship.. is it always 1-m relation from parent to child?
yes unless you create a unique index on the foreign key column
2) can a parent table be on many side? i.e can a child - parent be 1- m?
no, if you need an n-m you will need an intersection table
e.g. employees - emp_dept - departments
in this case the emp_dept table would contain the foreign keys of employees and departments
3) if i itake employee as child table and department as parent table then dept_id will be the foreigh key in employee table ...
Now if i want to add a new employee who is not assigned to any department can i add it ?
no, you will have to insert the master first
Best regards,
PP

Problem creating non-persistent Child Objects

I have the need to create a non persistable child object in the
jdoPreStore of a parent object. I then perform some tests on the parent
to determine if the child object needs to be persisted or not. If I leave
the child non persistent it still writes to the database.
I was performing the follwoing piece of code
Class Parent {
// The relationship is a 0 to many
public Child createChild() {
Child child = .....//create non persistent object
child.setParent(this);
getChild().add(child);
It appears that if I remove the getChild().add(child). It does not
persist (as desired).
Is this correct behaviour?? I dont think that it should be, but if it is
then I have a further problem.
If that child object inherits from another object and you remove the
getChild().add(child) kodo outputs an invalid object to the database. It
doesnt insert a row to the child table. But it inserts a row to the
childs inherited object table. This is now an invalid object and will
fail upon loading.
Any help on this would be appreciated.
Thanks
Luke.

JDO has something called persistence by reachability. This means that
objects do not have to explicitly be marked as to be persistent as JDO
will traverse the object graph to ensure that all nodes are persistent.
I think you are seeing this behavior combined with another side
behavior: Kodo requires that both sides of a relation be set.
Basically, keep your objects in synch (set both sides of the relation).
And if you want to hold onto a reference to non-persistent object
before you decide what to do with it, add a transient field or a field
marked "persistence-modifier="none"" in your metadata and then process
those transient fields in jdoPreStore ().
i.e.
if (//businessLogic is true)
persistentField = transientField;
Luke wrote:
I have the need to create a non persistable child object in the
jdoPreStore of a parent object. I then perform some tests on the parent
to determine if the child object needs to be persisted or not. If I leave
the child non persistent it still writes to the database.
I was performing the follwoing piece of code
Class Parent {
// The relationship is a 0 to many
public Child createChild() {
Child child = .....//create non persistent object
child.setParent(this);
getChild().add(child);
It appears that if I remove the getChild().add(child). It does not
persist (as desired).
Is this correct behaviour?? I dont think that it should be, but if it is
then I have a further problem.
If that child object inherits from another object and you remove the
getChild().add(child) kodo outputs an invalid object to the database. It
doesnt insert a row to the child table. But it inserts a row to the
childs inherited object table. This is now an invalid object and will
fail upon loading.
Any help on this would be appreciated.
Thanks
Luke.
Steve Kim
[email protected]
SolarMetric Inc.
http://www.solarmetric.com

Child table provisioning to SQL using DBAT

I have a Multivalued attribute named 'AuthzIds' coming from Sun LDAP thru target reconciliation. I wanted to provision this value to SQL's 'MyAuthz' table (Child of MyUser table) using GTC - DBAT.
USR table -> already provisioned to -> MyUser table
UD_AUTHZ table -> to be provisioned to -> MyAuthZ table.
How will I make this child table provisioning work ? Do I have to write any custom adapter ? I see a task 'Child Table UD_MYAUTHZ row inserted" task in SQL_GTC process, which uses a adpSQL_GTC adapter.
Thanks!
Kabi

After Create User User, you'll have to add one more task which will read the data from iplanet user form and add in Child Table using Form APIs.*
You are suggesting to add a dependent-task to GTC-Process's "create user" task. Is my understanding correct ?
If yes, this may not work for the following reason.
I assume GTC task 'create User' invoked when the use is created in SQL. In my use case, users are created in SQL thru auto provisioning during 'iPlanet trusted Recon'. The SQL child table 'MuAuthz' suppose to be provisioned with child data when I run 'iPlanet Target Recon' (not 'trusted Recon'). Because 'target Recon' brings the mutlivalue attribute AuthzId to iPlanet resource UD_AUTHZ table (already associated to OIM Users). I run the 'iPlanet Target Recon' separately after successful completion of 'trustes recon'. So create user may not be the appropriate place for adding this dependent task, since there will be no child data available to OIM user after 'trusted recon' .
Another question related to this. I see few tasks like "Child Table UD_MYAUTHZ row inserted/ updated/ deleted" in GTC process. What are these tasks used for ?

Problem with Master and Child table

Hi,
Working in jdev 11.1.1.2.0. I have one strange issue. i have master and child tables, the model is working fine with the view link. but when drag drop the same into my jsff. when i query the result 1st time 2 tables are refershing properly and data is coming. but the when i trying to select another row in the 1st table my 2nd table(child table) is not refreshing.
i put partial trigger of the 2nd table as 1st table id.
can any one help wht is issue here.
Edited by: user5802014 on Jul 15, 2010 3:44 PM

Check this post might help you
http://baigsorcl.blogspot.com/2010/03/creating-master-detail-form-in-adf.html

Creating relation in child tables

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