Deleting Records on Multiple Tables

Hello!
I have an easy one, any help would be greatly appreciated.
I have application that uses the following tables:
Issues
PK:Issue_ID
Issue_Programs
PK:Issue_Program_ID
Issue_ID
Issue_Notes
PK:Issue_Note_ID
Issue_ID
Issue_Courses
PK:Issue_Courses_ID
Issue_ID
The "Issues" table is the main table in the application, and the other three tables are used to support this table, with a 1-Many relationship. If a new record is created in any of them, the primary key from the "Issues" table, Issue_ID, is used to create that association.
What I need is a delete button that will delete all records containing this "Issue_ID" in all 4 tables. The page I currently have set up that deletes records from the Issues table has a hidden field called "P4_ISSUE_ID" that will have the Issue ID of the issue that needs to be deleted.
Any help would be greatly appreciated!
Thanks!

I ask because i simply do not know the benefits of using one method over the other, and I would earnestly like to know.The declarative approach using <tt>ON DELETE CASCADE</tt> FKs means you don't have to write any code. Less code = less work, less chance of error, less testing etc.
It's also easier to maintain. Say you need to add another table linked to <tt>ISSUES</tt>. All you have to do is declare the foreign key. With the trigger, you have to add another <tt>DELETE</tt> to the trigger. If you add child tables linked to your existing child tables, then you have to add triggers to the second level of tables etc.

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Delete records from multiple table

Hi,
I need to delete records from multiple tables using a single delete statement. Is it possible ? If so please let me know the procedure.
Kindly Help.
Thanks,
Alexander.

Hi Tim,
Syntax of DELETE statement does not allow for multiple tables to be specified in this way. Infact, none of the DMLs allow you to specify table names like this.
Technically, there are other ways of deleting from multiple tables with one statement.
1. "Use a trigger":
What was probably meant by this is that you have a driving-table on which you create a on-delete trigger. In this trigger, you write the logic for deleting from other tables that you want to delete from.
This does mean a one-time effort of writing the trigger. But the actual DML operation of deleting from all the tables would be simply triggered by a delete on driving-table.
2. Dynamic SQL:
Write a PL/SQL code to open a cursor with table-names from which you want the data to be deleted from. In the cursor-for loop, write a dynamic SQL using the table-name to delete from that table.
3. Using Foreign-Key constraint with Cascade-Delete:
This I feel is a more 'cleaner' way of doing this.
Having to delete data from multiple tables means that there is some kind of parent-child relationship between your tables. These relationships can be implemented in database using foreign-key constraints. While creating foreign-key constraint give the 'on delete cascade' clause to ensure that whenever data is deleted from parent-table, its dependent data is deleted from child-table.
Using foreign-key constraint you can create a heirarchy of parent-child relationships and still your DELETE would be simple as you would only have to delete from parent-table.
IMPORTANT: Implementing foreign-key constraints would also impact other DML operations that you should keep in mind.

Delete records from multiple tables and add delay in execution

Dear All,
My Database is Oracle 11gR2 on Linux.
I have to schedule delete in 5 tables. For this i will write a procedure with delete queries and schedule the procedure to run daily in night.
I want to give delay in the execution of delete queries within procedure? How can i add this functionality within a procedure?
I don't want to lock the tables as other queries may be accessing the same table meanwhile.
Looking for your help.
Regards,
Imran

Duplicate thread - see https://forums.oracle.com/thread/2553380 for answer.

Inserting records across multiple tables

I'm still pretty new to working with databases, but have been
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CompanyID (INT, auto increment)
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CompanyContacts :
CompanyID (INT)
ContactID (INT)
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I'm still pretty new to working with databases, but have been
fine using DW to use forms to add, edit and delete records from a
flat table.
I'm less sure about updating records across multiple tables,
for example in a one to many rleationship with a look up table, eg
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Companies :
CompanyID (INT, auto increment)
Company
Address
etc
Contacts :
ContactID (INT, auto increment)
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LastName
etc
CompanyContacts :
CompanyID (INT)
ContactID (INT)
It's straightforward enough to create pages to insert new
records into the Companies or Contacts tables, but how do I go
about populating the CompanyContacts table when I add a new record
in the Contacts table, so that it becomes 'attached' to a
particular 'Company'?
If that makes sense.
Iain

What's the best way to insert/update thousands records in multiple tables

Can anyone give an example of how to insert/update thousands records in multiple tables on performance wise? or what should I do to improve the performance?
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jim

You can see a set of sample applications in various scenarious available at
http://otn.oracle.com/sample_code/tech/java/sqlj_jdbc/content.html

Deleting records in a table based a collection

I wanna delete records in a table which do not match the records in the collection.
Since the collection is a pl/sql collection I cannot do it like
v_t v_type;
DELETE FROM sample WHERE flex_name NOT IN (SELECT * FROM TABLE(v_type(SELECT * FROM v_t)));
is there any other alternative to do the same ?

Hi
please use this code it is working
DATA :
   BEGIN OF fs_itab,
      first(2) TYPE c,
      second TYPE c,
      third TYPE c,
      fourth(2) TYPE c,
   END OF fs_itab.
DATA :
t_itab LIKE STANDARD TABLE OF fs_itab.
CLEAR fs_itab.
fs_itab-first = 'AA'.
fs_itab-second = 'Z'.
fs_itab-third = 'Y'.
fs_itab-fourth = 'AA'.
APPEND fs_itab TO t_itab.
CLEAR fs_itab.
fs_itab-first = 'AA'.
fs_itab-second = 'Z'.
fs_itab-third = 'Y'.
fs_itab-fourth = 'AA'.
APPEND fs_itab TO t_itab.
CLEAR fs_itab.
fs_itab-first = 'AA'.
fs_itab-second = 'Z'.
fs_itab-third = 'Y'.
fs_itab-fourth = 'CC'.
APPEND fs_itab TO t_itab.
CLEAR fs_itab.
fs_itab-first = 'BB'.
fs_itab-second = 'P'.
fs_itab-third = 'Q'.
fs_itab-fourth = 'DD'.
APPEND fs_itab TO t_itab.
CLEAR fs_itab.
fs_itab-first = 'BB'.
fs_itab-second = 'P'.
fs_itab-third = 'Q'.
fs_itab-fourth = 'BB'.
APPEND fs_itab TO t_itab.
LOOP AT t_itab INTO fs_itab.
IF fs_itab-first NE fs_itab-fourth.
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ENDIF.
ENDLOOP.
LOOP AT t_itab INTO fs_itab.
WRITE :
     / fs_itab-first,
       fs_itab-second,
       fs_itab-third,
       fs_itab-fourth.
ENDLOOP.
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Pavan

Delete records from internal table

hi all,
i want to delete records from intenal table which are starting with a particular starting number .
eg internal table
10000
20000
90000
91000
92000
88880
i want delete the records starting with 9 i.e. 90000 91000 92000.
Thanks in Adv
RAJ

You can test this piece of code.
DATA:
i_tab TYPE STANDARD TABLE OF mara,
wa_tab TYPE mara.
wa_tab-matnr = '1000'.
APPEND wa_tab TO i_tab.
CLEAR wa_tab.
wa_tab-matnr = '1001'.
APPEND wa_tab TO i_tab.
CLEAR wa_tab.
wa_tab-matnr = '1002'.
APPEND wa_tab TO i_tab.
CLEAR wa_tab.
wa_tab-matnr = '1003'.
APPEND wa_tab TO i_tab.
CLEAR wa_tab.
wa_tab-matnr = '2001'.
APPEND wa_tab TO i_tab.
CLEAR wa_tab.
wa_tab-matnr = '3001'.
APPEND wa_tab TO i_tab.
CLEAR wa_tab.
wa_tab-matnr = '4010'.
APPEND wa_tab TO i_tab.
CLEAR wa_tab.
<REMOVED BY MODERATOR>
Edited by: Alvaro Tejada Galindo on Aug 8, 2008 4:49 PM

Records from multiple tables

Hi,
I have a method that has to access records from multiple tables and store them all in a file. It's something like this:
switch (tableId){
case 'A' : query="SELECT * FROM TABLE_A
WHERE ID = '" + tempId + "'";
ResultSet rs = stmt.executeQuery (query);
rs.close();
break;
case 'B' : query="SELECT * FROM TABLE_B
WHERE ID = '" + tempId + "'";
rs = stmt.executeQuery (query);
rs.close();
break;
case 'C' : query="SELECT * FROM TABLE_C
WHERE ID = '" + tempId + "'";
rs = stmt.executeQuery (query);
rs.close();
break;
My problem is that I get an "Invalid cursor" error the second time I enter the loop. I've been reading up on cursors but I still don't know what to do. Can I use ResultSet to return multiple rows from multiple tables? If not, what can I use? Please help!
Thanks in advance.

remove the "rs.close()" from the switch statement. use "rs.close()" after your loop ends.
prem

How to check deleted record in a table

Hi to all,
any one can do need ful to me for how to check last deleted record in a table.

Since you are on 8i,
AUDIT DELETE TABLE AUDIT
and Using LogMiner
are your best chance to find out last deleted records.
If you are on 9i and later, you can also use flashback query to join current table with table image few minutes back to find out the difference.

Is there any way to detect commited deleted record in a table?

Hi All,
Is there any way to find out commited deleted record in a table without using triggers?
Thanks,

If you want to get back the deleted records and you are using 10g or above than Flashback technology can get that for you.
If you want to find out the commands that did the work and you are not using 10g than as suggested, Auditing and LogMiner can be the option.
Aman....

Deleting Records from Referential Tables

Hi,
Can anyone help me in deleting records from tables in a hierarcial manner. For e.g C refers B and B refers A. I need to delete data from all three tables related to a where clause in A.I tried using User_constraints and User_cons_columns views. But i am not able to find a hierarchial delete statement.
Venkatesh

Did you look into the option of specifying ON DELETE CASCADE for your foreign key constraints. That way, if you delete a
row from the master table Oracle will automatically go and delete the child rows. Take a look at the following script.
Here, when I delete a row from table A for NUM = 1 the child rows from table B (WHERE num = 1) are automatically deleted.
drop table b
drop table a
create table a (num number, name varchar2(40))
create table b (num number, name varchar2(40))
alter table a add constraint pk_a primary key(num)
alter table b add constraint fk_b_num foreign key (num) references a(num) on delete cascade
insert into a values (1, 'Test#1')
insert into a values (2, 'Test#2')
insert into b values (1, 'Referes#1')
insert into b values (2, 'Referes#2')
select * from a
select * from b
delete from a where num = 1
select * from a
select * from b
Sridhar,
Thanks a lot for your help.My exact need was to delete records in 50 tables starting with the key table for a specific condition in the key table.
Assume table A has 100 records,B 200 records,C 150 records,D 400 records, etc
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Delete records in a table and at the same time print out for reference

I am working on a req to delete some records from a table and at the same time, record/print the deleted records in the outstream (DBMS_OUTPUT.PUT_LINE)
DECLARE
v_rec_po hst_po%ROWTYPE;
BEGIN
DELETE FROM hst_po po
WHERE abbrpoid = '&opportunity_code'
AND updatedby = (SELECT employeeid
FROM tes_employee
WHERE name = &emp_name)
AND audittimestamp BETWEEN TO_DATE ('&start_timestamp',
'DD-MON-YYYY HH24:MI'
AND TO_DATE ('&end_timestamp',
'DD-MON-YYYY HH24:MI'
END;
I was thinking of using returning into and then using DBMS_output to pull out the delted records, but there will be multiple rows deleted fro this statements. I am stuck here..Can anyone help

How about:
SQL> create table t
2 (x int)
3 /
Table created.
SQL> insert into t
2 select rownum
3    from all_objects
4   where rownum <= 10
5 /
10 rows created.
SQL> declare
2     cnt pls_integer;
3 begin
4     delete from t;
5     cnt := sql%rowcount;
6     dbms_output.put_line ('Removed: '||to_Char (cnt));
7 end;
8 /
Removed: 10
PL/SQL procedure successfully completed.Edited by: Alex Nuijten on Jun 4, 2009 8:58 AM

Delete records in internal table

Hi,
I have two internal tables itab1 and itab2.
I need to delete records from itab1 comparing the data from itab2. I tried to use the read statement within the main table.
My problem is itab2 and itab1 has multiple records and all the records need to be checked from itab2 with itab1 before deleting the records from itab1.
itab1 and itab2 have a common field 'runid' between them.
How can this be accomplished?
Thanks,
VG

>
Venkat.O wrote:
> Hi VG,
> Try this way.
>
> data: tabix type sy-tabix.
> loop at itab1.
> tabix = sy-tabix.
> _LOOP at itab2 where runid = itab1-runid._
_> if sy-subrc NE 0._
> delete itab1 index tabix.
> endif.
> endloop.
>
> Thanks
> Venkat.O
Venkat, inside a loop a IF SY-SUBRC NE 0 doesn't make sense because you are in the loop only after the condition in WHERE clause is satisfied (which means SY-SUBRC is always 0). Also you are missing another ENDLOOP.

How to Restore deleted records in other table in oracle database 10g...

Hi All,
i want to restore deleted records of a particular table in other table
suppose:
i perform a query
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where deptno =30;
now i wont to restore deptno=30 records in other table, let say in emp1 table
can any one let me know how to do it?
Thanks..

This is what flashback query is for:
orclz> conn scott/tiger
Connected.
orclz> select count(*) from emp;
COUNT(*)
14
orclz> delete from emp where deptno=30;
6 rows deleted.
orclz> commit;
Commit complete.
orclz> create table deleted30 as select * from emp as of timestamp(systimestamp - 5/1440) where deptno=30;
Table created.
orclz> select count(*) from deleted30;
COUNT(*)
6
orclz>

How to delete records from MTL_SYSTEM_ITEMS table

Hello Experts,
BANNER
=======
Oracle8i Enterprise Edition Release 8.1.7.4.0 - Production
PL/SQL Release 8.1.7.4.0 - Production
CORE     8.1.7.0.0     Production
TNS for IBM/AIX RISC System/6000: Version 8.1.7.4.0 - Production
NLSRTL Version 3.4.1.0.0 - Production
I am working on Oracle Apps - 11.5.8 version.
I have some doubts in deleting the records from MTL_SYSTEM_ITEMS table.
There are few records which have junk characters and currently resides in table.
I need to delete those records.
But as per the approach; we should not delete any data directly from MTL table as it would cause huge impact.
I have followed the below approach; but didnt worked out well.
Script
=======
1)
I have modified the below parameter in the MTL_SYSTEM_ITEMS_INTERFACE table --> SET_PROCESS_ID =0,TRANSACTION_TYPE ='DELETE',PROCESS_FLAG=1 .
Apart from that; everything remains the same as in MTL_SYSTEM_ITEM table.
2) Called the "Import Items" concurrent program.
It got successfully completed. But record still exists in MTL_SYSTEM_ITEMS_INTERFACE table
Your help is highly appreciated.
Insert into MTL_SYSTEM_ITEMS_INTERFACE
   (SET_PROCESS_ID ,TRANSACTION_TYPE,PROCESS_FLAG ,INVENTORY_ITEM_ID, ORGANIZATION_ID, LAST_UPDATE_DATE, LAST_UPDATED_BY, CREATION_DATE, CREATED_BY, LAST_UPDATE_LOGIN,
SUMMARY_FLAG, ENABLED_FLAG, DESCRIPTION, BUYER_ID, SEGMENT1, ATTRIBUTE3, ATTRIBUTE4, ATTRIBUTE9, ATTRIBUTE15, PURCHASING_ITEM_FLAG, SHIPPABLE_ITEM_FLAG,
CUSTOMER_ORDER_FLAG, INTERNAL_ORDER_FLAG, SERVICE_ITEM_FLAG, INVENTORY_ITEM_FLAG, ENG_ITEM_FLAG, INVENTORY_ASSET_FLAG, PURCHASING_ENABLED_FLAG,
CUSTOMER_ORDER_ENABLED_FLAG, INTERNAL_ORDER_ENABLED_FLAG, SO_TRANSACTIONS_FLAG, MTL_TRANSACTIONS_ENABLED_FLAG, STOCK_ENABLED_FLAG, BOM_ENABLED_FLAG, BUILD_IN_WIP_FLAG,
REVISION_QTY_CONTROL_CODE, CATALOG_STATUS_FLAG, RETURNABLE_FLAG, TAXABLE_FLAG, QTY_RCV_EXCEPTION_CODE, ALLOW_ITEM_DESC_UPDATE_FLAG, RECEIPT_REQUIRED_FLAG,
RFQ_REQUIRED_FLAG, QTY_RCV_TOLERANCE, LIST_PRICE_PER_UNIT, PRICE_TOLERANCE_PERCENT, ENFORCE_SHIP_TO_LOCATION_CODE, ALLOW_SUBSTITUTE_RECEIPTS_FLAG,
ALLOW_UNORDERED_RECEIPTS_FLAG, DAYS_EARLY_RECEIPT_ALLOWED, DAYS_LATE_RECEIPT_ALLOWED, RECEIPT_DAYS_EXCEPTION_CODE, RECEIVING_ROUTING_ID, LOT_CONTROL_CODE,
SHELF_LIFE_CODE, SHELF_LIFE_DAYS, SERIAL_NUMBER_CONTROL_CODE, RESTRICT_SUBINVENTORIES_CODE, RESTRICT_LOCATORS_CODE, LOCATION_CONTROL_CODE, ACCEPTABLE_EARLY_DAYS,
PLANNING_TIME_FENCE_CODE, LEAD_TIME_LOT_SIZE, ACCEPTABLE_RATE_INCREASE, ACCEPTABLE_RATE_DECREASE, PLANNING_TIME_FENCE_DAYS, END_ASSEMBLY_PEGGING_FLAG,
REPETITIVE_PLANNING_FLAG, BOM_ITEM_TYPE, PICK_COMPONENTS_FLAG, REPLENISH_TO_ORDER_FLAG, ATP_COMPONENTS_FLAG, ATP_FLAG, WIP_SUPPLY_TYPE, PRIMARY_UOM_CODE,
PRIMARY_UNIT_OF_MEASURE, ALLOWED_UNITS_LOOKUP_CODE, COST_OF_SALES_ACCOUNT, SALES_ACCOUNT, DEFAULT_INCLUDE_IN_ROLLUP_FLAG, INVENTORY_ITEM_STATUS_CODE,
INVENTORY_PLANNING_CODE, PLANNING_MAKE_BUY_CODE, FIXED_LOT_MULTIPLIER, ROUNDING_CONTROL_TYPE, CARRYING_COST, POSTPROCESSING_LEAD_TIME, PREPROCESSING_LEAD_TIME,
FULL_LEAD_TIME, MRP_SAFETY_STOCK_CODE, FIXED_DAYS_SUPPLY, RESERVABLE_TYPE, VENDOR_WARRANTY_FLAG, SERVICEABLE_COMPONENT_FLAG, SERVICEABLE_PRODUCT_FLAG,
PREVENTIVE_MAINTENANCE_FLAG, PRORATE_SERVICE_FLAG, INVOICEABLE_ITEM_FLAG, INVOICE_ENABLED_FLAG, MUST_USE_APPROVED_VENDOR_FLAG, OUTSIDE_OPERATION_FLAG,
COSTING_ENABLED_FLAG, AUTO_CREATED_CONFIG_FLAG, CYCLE_COUNT_ENABLED_FLAG, ITEM_TYPE, SHIP_MODEL_COMPLETE_FLAG, MRP_PLANNING_CODE, RETURN_INSPECTION_REQUIREMENT,
EFFECTIVITY_CONTROL, CHECK_SHORTAGES_FLAG, EQUIPMENT_TYPE, WEB_STATUS, BULK_PICKED_FLAG, LOT_STATUS_ENABLED, SERIAL_STATUS_ENABLED, LOT_SPLIT_ENABLED,
LOT_MERGE_ENABLED, DUAL_UOM_CONTROL, SERV_BILLING_ENABLED_FLAG, LOT_TRANSLATE_ENABLED, DEFAULT_SO_SOURCE_TYPE, CREATE_SUPPLY_FLAG)
Values
   (0,'DELETE',1,464852, 102, TO_DATE('01/11/2007 16:15:11', 'MM/DD/YYYY HH24:MI:SS'), 3443, TO_DATE('08/24/2006 14:13:03', 'MM/DD/YYYY HH24:MI:SS'), 3443, 21069398,
'N', 'Y', 'pentaseal 6 X 320 SL-807202 Klockner', 4223, '0006320161', 'No', 'No', 'MRPM', 'N', 'Y', 'N', 'N', 'N', 'N', 'Y', 'N', 'Y', 'Y', 'N', 'N', 'N', 'N', 'Y',
'Y', 'Y', 1, 'N', 'Y', 'N', 'WARNING', 'Y', 'Y', 'N', 3, 0, 20, 'WARNING', 'Y', 'Y', 5, 5, 'WARNING', 3, 1, 2, 1825, 1, 2, 2, 2, 10, 4, 1, 0, 0, 1, 'B', 'N', 4, 'N',
'N', 'N', 'N', 2, 'EA', 'EACH', 3, 12916, 14296, 'Y', 'Uncosted', 6, 1, 100, 1, 2, 0, 5, 50, 1, 20, 1, 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'N', 'Y', 'N', 'Y',
'CMPC', 'N', 3, 2, 1, 'N', 2, 'UNPUBLISHED', 'N', 'N', 'N', 'N', 'N', 1, 'N', 'N', 'INTERNAL', 'Y');---------

Hi,
You have to use the delete item utility of Oracle Inventory.
Responsibility: Inventory Superuser or similar
Navigation: Items -> Delete Items
Enter a meaningful name in the Group field.
Type - Item
Select the organization you want to delete the item from.
In the details section, enter the items you want to delete.
Once all the items entered, click on the "Chcek Group" button. This will validate whether the items you have entered are eligible to delete (i.e. whether any child record such as transactions exist).
It will submit a concurrent program and once the program finishes you will be able to see the result in the Results tab.
Finally click on the "Delete Group" button to delete the eligible items.
Thanks,
PS.

Deleting Records on Multiple Tables

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