Delete the parent records and child table records at a time

hi all;
I am facing the pbm like to delete the all records in child table and corresponding records in parent table at a time. so I want to delete the all the records in child table and corresponding parent records in parent table by using single SQL query. plz help me
Thanks in advance

You want to use one single SQL statement to delete the child records in a table and the corresponding master records in the master table??
That's not quite possible with a single SQL, of course unless you are talking about Oracle Forms, where you have a relation and set the delete behavior to Cascading, like said in the above posts.
Tony

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I HAVE A SOURCE TABLE WITH 10 RECORDS AND TARGET TABLE 15 RECORDS. MY WUESTION IS USING WITH THE TABLE COMPARISON TRANSFORM I WANT TO DELETE UNMATCHED RECORDS FROM THE TARGET TABLE ??

I HAVE A SOURCE TABLE WITH 10 RECORDS AND TARGET TABLE 15 RECORDS. MY QUESTION IS USING WITH THE TABLE COMPARISON TRANSFORM .I WANT TO DELETE UNMATCHED RECORDS FROM THE TARGET TABLE ?? HOW IT IS ??

Hi Kishore,
First identify deleted records by selecting "Detect deleted rows from comparison table" feature in Table Comparison
Then Use Map Operation with Input row type as "delete" and output row type as "delete" to delete records from target table.

Insert data Flatfile table to Parent and child tables

Hi All,
I have Flatfile table which is we getting from daily txt files and i want to populate flatfile data to parent as well as child tables. parent table has primary key as ID. This ID is foreign key of child tables.
Here i have mentioned our process.
1. Flatfile duplicates has to remove with condition of daily date.
2. Before Insert parent table have to check duplicate(we have Unique key of 4 columns in parent) if duplicate is there we have to delete duplicate then Insert into parent table unique records(Primary key is ID).(here why we are delete duplicate record meaning
we getting daily files so if any records updated in future that record should be insert to parent and child table so only we delete old records and insert new records).
3.After insert parent we have to populate child tables from Flatfile table as well as we have to insert parent table primary key as foreign key of child tables.
4. if any truncation error occurs that errors should go to error log table.
Right now we are using cursor for this concept and cursor has performance issue. so we are trying to optimize other way to populate parent and child table to increase performance to populate.
Please help us to which way to do this process increase of performance .
Please can any one reply.

Hi RajVasu,
Since this issue is related to Transact-SQL, I will move this thread to Transact-SQL forum. Sometime delay might be expected from the job transferring. Your patience is greatly appreciated.
Thank you for your understanding and support.
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Katherine Xiong
TechNet Community Support

Update column data to Upper Case in parent and child table

Hi ,
I am facing issue while updating column value to upper case in parent table and child table. How can i do that ?
when updating parent row:
ORA-02292: integrity constraint (XXXXXXXXXXXXXX_FK) violated - child record found
When updatng corresponding child row:
ORA-02291: integrity constraint (XXXXXXXXXXXXXXXX_FK) violated - parent key not found
how can i update on both the places ?
Regards,
AA

I am facing issue while updating column value to upper case in parent table and child table. How can i do that ?
Why do you need to do that?
That is just ONE of several questions you should answer before you start modifying your data.
1. What is your 4 digit Oracle version? (result of SELECT * FROM V$VERSION)
2. If both values are the same case what difference does it make what that case is?hen you don't need to alter your original data.
3. What is the source of the column values you are using now? If you change your data to upper case it will no longer be identical to the source data.
4. What is your plan for enforcing future values to be stored in UPPER case? Are you going to use a trigger? Have you written and tested such a trigger to see if it will even work the way you expect?
5. Why aren't you using a surrogate key instead of a 'business' data item? You have just demonstrated one reason why surrogate keys can be useful: their actual value is NOT important.
You should reexamine your problem and architecture and consider other alternatives.
One alternative is to add a new 'surrogate key' column to use as the primary key. Just create a new sequence and use a trigger to populate the new column. Your current plans will require a trigger to perform the case conversion so instead of the just use the trigger to provide the value.
If the change is being done to facilitate searching you could just add a VIRTUAL column UPPER_MY_COLUMN and index that instead. Then you could search on that new virtual column and the data values would still be identical to the original data source.

General Query to identify parent columns and child columns in a table

Does anyone know a general query that can be run to identify the child records associated with the parent column within a single table.....and between other tables?
Am I correct in assuming the parent column is the 'primary key'?
Thanks.....I'm a new to oracle...and need some help understanding
my company's crazy DB structure

You can use
User_Constraints
User_Cons_Columns
views to identify parent and child table columns
SELECT * FROM User_Constraints WHERE Constraint_Type = 'R' AND Table_Name = '<TABLENAME>';
SELECT * FROM User_Cons_columns WHERE Constraint_Name = '<Name from Above query>';
will give you columns of the parent table (if you use value from constraint_name) and of child table (if you use value from r_constraint_name).
HTH..

How to update parent and child tables while updating parent table

I have a parent table EMPLOYEE which includes columns (sysid, serviceno,employeename...) sysid is Primary key, serviceno is Unique key and I have child table DEPENDENT includes columns (sysid,employee_sysid,name,dob...) here again SYSID is primary key for DEPENDENTS table, employee_sysid is Foreign key of EMPLOYEE table.
Now I want to change SYSID (using sequence) in EMPLOYEE table which need to be update in DEPENDENTS table as well
Note: I have 10000 records in EMPLOYEE table as well as I have 5 more child tables which need to update new SYSID.
please help me

first disable the FOREIGN KEY Constraints.
you can update Parent as well as Child record also with help of trigger.
here i am giving you one examlpe..it may help u.
create table parent(id number primary key,name varchar2(100))
create table child_1(id number primary key,p_id number,dob date,
CONSTRAINT FK_id FOREIGN KEY (p_id) REFERENCES parent (ID))
create table child_2(id number primary key,p_id2 number,addr varchar2(1000),
CONSTRAINT FK_id2 FOREIGN KEY (p_id2) REFERENCES parent (ID))
insert some test data to parent and child tables.
alter table child_2 disable constraint FK_id2
alter table child_1 disable constraint FK_id2
CREATE OR REPLACE TRIGGER delete_child
BEFORE UPDATE ON parent
FOR EACH ROW
BEGIN
UPDATE CHILD_1
SET P_ID=:NEW.ID
WHERE P_ID=:OLD.ID;
UPDATE CHILD_2
SET P_ID2 =:NEW.ID
WHERE P_ID2=:OLD.ID;
END;
then Upadte parent table primary key col and check the child tables.
then enable the constraints...

How to insert record in child table with foreign key

Hi,
I am using Jdeveloper 11.1.2.0. I have two master table one child table.
How to insert and update a record in child table with foreign key ?
I have created VO based on three EO(one eo is updatable other two eo are references) by using joined query.
Thanks in Advance
Edited by: 890233 on Dec 24, 2011 10:40 PM

... And here is the example to insert using sequenceimpl by getting the primary key of the master record and insert master and detail together.
Re: Unable to insert a new row with a sequence generated column id
-Arun

DB Adapter wizard – WHERE clause on parent and child tables not working.

I have two tables, SECURITY and SECURITY_POSITIONS, where SECURITY has a 1:M relationship with SECURITY_POSITIONS. I used the DB-adapter wizard to create the relationship and the following WHERE clause expression which is looking at both the parent and the child tables;
The expression builder looks like this:
AND
|--- 1. partitionKey EQUAL p_SearchKey
|--- 2. securityType EQUAL “DBT”
|--- 3. securityPositionsCollection.dealReference EQUAL “NA”
The primary key on SECURITY = PARTITION_KEY and SECURITY_REFERENCE
The foreign key from SECURITY_POSITIONS to SECURITY = PARTITION_KEY and SECURITY_REFERENCE
securityType is on SECURITY table (master)
securityPositionsCollection.dealReference is on SECURITY_POSITIONS table (child)
The invoke on the database adapter is selecting a row in securityPositionsCollection for each child row, rather than just those with dealReference = “NA”!
I turned on DEBUG logging in the BPEL console and I can see that there are 2 SELECT queries run (guess this is how Toplink does it!), where the 1st query appears to select the parent rows and the 2nd query selects the child rows.
However the 2nd query is not working because it is failing to select only those child rows where dealReference = “NA”. Also, don’t know why the 2nd SELECT query needs to specify the child SECURITY_POSITIONS table twice in the FROM clause, because that seems to be causing the problem.
1st query executed is as follows;
SELECT DISTINCT t0.PARTITION_KEY, t0.SECURITY_REFERENCE, t0.SECURITY_TYPE
FROM CENTRAL.SECURITY t0, CENTRAL.SECURITY_POSITIONS t1
WHERE ((((t0.PARTITION_KEY = ?) AND (t0.SECURITY_TYPE = ?)) AND (t1.DEAL_REFERENCE = ?)) AND ((t1.SECURITY_REFERENCE = t0.SECURITY_REFERENCE) AND (t1.PARTIT
ION_KEY = t0.PARTITION_KEY)))
bind => [200706200000, DBT, NA]
2nd query executed is as follows, where child table appears twice! ;
SELECT DISTINCT t0.DEAL_REFERENCE, t0.PARTITION_KEY, t0.SECURITY_REFERENCE
FROM CENTRAL.SECURITY_POSITIONS t0,
CENTRAL.SECURITY_POSITIONS t2,
CENTRAL.SECURITY t1
WHERE ((((t0.SECURITY_REFERENCE = t1.SECURITY_REFERENCE) AND (t0.PARTITION_KEY = t1.PARTITION_KEY)) AND
(((t1.PARTITION_KEY = ?) AND (t1.SECURITY_TYPE = ?)) AND
(t2.DEAL_REFERENCE = ?))) AND
((t2.SECURITY_REFERENCE = t1.SECURITY_REFERENCE) AND
(t2.PARTITION_KEY = t1.PARTITION_KEY)))
bind => [200706200000, DBT, NA]
Anyone experienced the same problem e.g. why is toplink making the query more complicated that it needs to be, because the query only needs to reference the SECURITY_POSITIONS table once, as follows;
SELECT DISTINCT t0.DEAL_REFERENCE, t0.PARTITION_KEY, t0.SECURITY_REFERENCE
FROM CENTRAL.SECURITY_POSITIONS t0,
CENTRAL.SECURITY t1
WHERE ((((t0.SECURITY_REFERENCE = t1.SECURITY_REFERENCE) AND (t0.PARTITION_KEY = t1.PARTITION_KEY)) AND
(((t1.PARTITION_KEY = '200706200000') AND (t1.SECURITY_TYPE = 'DBT')) AND
(t0.DEAL_REFERENCE = 'NA'))) AND
((t0.SECURITY_REFERENCE = t1.SECURITY_REFERENCE) AND
(t0.PARTITION_KEY = t1.PARTITION_KEY)))

Hello,
It looks like you have configured your 1:M relationship to use batch reading. This causes the query to bring in the Security_Position table's objects to use the same selection criteria as was used on the initial query, with a join statement. This is more efficient in most cases as it ensures only the Security_positions needed for the Security objects to be fully built are read, in a single query.
The selection criteria added is only used to filter out the Security objects. All referenced Security_Positions must be read in for the returned Security objects so that the data matches what is in the database. If you do not want the Security_Positions, you might try using indirection on the mapping which will delay the second query until you need the Security_Positions. Or, if you want only the Security_Positions with dealReference EQUAL “NA", you could do a query specifically to filter on them.
Best Regards,
Chris

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Hi All,
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Also, after successful update of user name, we also have to update the CRM resource record to ensure the CRM record is associated with the correct username.
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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>

How to delete the duplicate data from PSA Table

Dear All,
How to delete the duplicate data from PSA Table, I have the purchase cube and I am getting the data from Item data source.
In PSA table, I found the some cancellation records for that particular records quantity would be negative for the same record value would be positive.
Due to this reason the quantity is updated to target but the values would summarized and got the summarized value of all normal and cancellation .
Please let me know the solution how to delete the data while updating to the target.
Thanks
Regards,
Sai

Hi,
in deleting the records in PSA table difficult and how many you will the delete.
you can achieve the different ways.
1. creating the DSO maintain the some key fields it will overwrite the based on key fields.
2. you can write the ABAP logic deleting the duplicate records at info package level check with the your ABAPer.
3.you can restrict the cancellation records at query level.
Thanks,
Phani.

Delete the parent records and child table records at a time

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