Deleting few records from a large table

Hi,
I have a table having roughly 1.5 million. I sent a script to delete 16 duplicate records and it took more than 20 minute.
Any help is appreciated
Thanks
Racle

Since the delete statement keeps a log of records being deleted in case the delete statement may need to be rolled back, it may take a while to delete. Also, do the columns in your where clause have indexes on them? If no, then your system may have a hard time finding the records that need to be deleted. The truncate table command also deletes records much faster than the delete statement, but it doesn't keep a log of the records being deleted so use with caution!

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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.

Deleting/Updating records from an object table in PL/SQL

Hello All,
VER:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
PL/SQL Release 11.2.0.3.0 - Production
CORE     11.2.0.3.0     Production
TNS for Linux: Version 11.2.0.3.0 - Production
NLSRTL Version 11.2.0.3.0 - Production
I have created an object and inserted records in it. Is there any way we can delete/update records from it. I do not want to delete based on iteration like delete.collection but I would like to know if we can delete directly from obj like delete from table...
CREATE OR REPLACE TYPE test_type AS OBJECT
col1 number,
col2 varchar2(100)
CREATE OR REPLACE TYPE tab_type is table of test_type;
DECLARE
test_tab tab_type;
l_cnt NUMBER;
BEGIN
select test_type(col1,col2) bulk collect
into test_tab from (select 1 as col1,'test1' as col2 from dual
                    union all
                    select 2,'test2' from dual);
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THEN
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Shank.

SB,
I have a scenario wherein I insert few records into a collection table. I'm gonna filter few records from collection table based on the filter.
I want to delete the records that didn't match the filter. Right now, I'm inserting the records into a physical table and deleting from there. I do no want to use a physical table. Trying to avoid it.
Would like to delete from collection itself.
DELETE FROM TABLE(CAST(lv_attr_filter_tab as EDMS_CSPP_DISC_REQ_TAB_TYPE))
                             WHERE NOT EXISTS (SELECT 1
                                   FROM edms_disc_lines_stg edls
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Creating a Trigger for Deleting the records from a parent Table

I am new to creating Trigger
We will need several small tables that will be used to store any records that are deleted by the owner of the table. These will likely need a trigger where we would Delete from the parent table and on that Delete populate the child table with the previous record's data.
Please give me a pseudo code for this
Thanks
John
Edited by: user10750995 on Dec 30, 2008 9:06 AM

Something like this:
CREATE OR REPLACE TRIGGER trg_my_table_hist
AFTER DELETE
ON my_table
FOR EACH ROW
BEGIN
INSERT INTO Hist_MyTable
( column1, column2, ..., DELETION_DATE)
VALUES
(:OLD.column1, :OLD.column2, ...., SYSDATE);
END;
/My_Table is your main table. When a row is deleted, the trigger will be fired and copy the deleted row to another table called Hist_My_Table. I'm supposing that the history table has all columns as they are defined in main tables plus a column named DELETION_DATE.
My experience indicates that, probably, it's a good idea maintain update history and the user. But it depends on your requests.
Regards,
Miguel

How to delete a record from BSEG table

Dear Experts,
How to delete a record from BSEG table.
If there possible to delete some records from transparent table ?
Please help.
Regards,
Tan

Hi,
Deleting a record from a standard table can be done only if table maintenance exists - Cehck tcode - SM30. But it is not advisable to delete records, coz the records may be dependent on many other tables. If u delete in a single place, there may be chance that inconsistency in the data happens and hence will affect ur financial statements.
Pls. assign points, if useful
Regards,
Sridevi

How to delete records from dynamic internal table.

Hi Experts,
Need urgent help!!!
Issue is with Dynamic internal tables.
Below is code written by me :
FORM select_query USING Lw_tabnam
                  TYPE t682i-kotabnr.
DATA : lw_line TYPE REF TO data,
          lw_line1 TYPE REF TO data.
    CREATE DATA Lw_line    TYPE (lw_TABNAM).
    ASSIGN      Lw_line->* TO   <WA_tbl>.
    CREATE DATA LW_LINE    TYPE STANDARD TABLE OF (Lw_tabnam)
                           WITH NON-UNIQUE DEFAULT KEY.
    ASSIGN      Lw_line->* TO <TBL>.
    SELECT * FROM (Lw_tabnam)
             INTO CORRESPONDING FIELDS OF TABLE <TBL>
             WHERE (t_keys).
Endform.
code is working fine.
here even the table name and where condition are dynamic,everything is fine upto this point.
Now i have to delete some record from <TBL> based on some conditons.
     for ex : ( here lc_fieldname is KUNNR)
      loop at t_kunnr.
          lw_tabix = sy-tabix.
        Read table <tbl>
                with key (lc_fieldname) = t_kunnr-kunnr ASSIGNING <wa_tbl>.
        If sy-subrc = 0.
        *Delete
        delete <tbl> from <wa_tbl>
delete <tbl> index lw_tabix.
        Endif.
     Endloop.
The above delete statement doesn't work ,even we can't use index as it gives a syntax error " something related to "index is not allowed in standard table or hash table.
Can you help me ab't how to delete records in Dynamic internal table?
Other option that i am thinking of is to create a static table of type dynamic table.
means, data itab type standard table of <tbl> .I know the syntax is wrong ,however is there any way to do this?
Thanks in advance ,
If you have any suggestion ab't this then do let me know.
bye,
Gaurav.

Hi
I wrote this code and it works fine:
DATA LW_TABNAM(10) VALUE 'LFA1'.
DATA : LW_LINES TYPE REF TO DATA,
       LW_LINE TYPE REF TO DATA.
FIELD-SYMBOLS: <TABLE> TYPE TABLE,
               <WA>    TYPE ANY.
CREATE DATA LW_LINES TYPE TABLE OF (LW_TABNAM)
WITH NON-UNIQUE DEFAULT KEY.
ASSIGN LW_LINES->* TO <TABLE>.
CREATE DATA LW_LINE TYPE (LW_TABNAM).
ASSIGN LW_LINE->* TO <WA>.
DO 10 TIMES.
APPEND INITIAL LINE TO <TABLE>.
ENDDO.
SY-TABIX = 4.
DELETE <TABLE> INDEX SY-TABIX.
WRITE SY-SUBRC.
I hope it help you
Max

Deleting records from Self-Referencing Table

I am using this query to dodge the foreign key error when trying to delete a record from a table that has primary key and referencing foreign key in the same table. It works with smaller set of data but for a table with 400,000 records it fails with error
: maximum recursion limit of 500 reached. I changed maxrecursion to 3267 and even 0. but no records were returned it infact went to infinite loop..
Please help if u have an alternative solution othr than a cascade trigger(which I am already considering)
WITH q AS
SELECT id, siteUrl
FROM TestComposite
WHERE id = 42
AND siteUrl = 'site1'
UNION ALL
SELECT tc.id, tc.siteUrl
FROM q
JOIN TestComposite tc
ON tc.parentID = q.id
AND tc.siteUrl = q.siteUrl
select *
FROM TestComposite
WHERE EXISTS
SELECT id, siteUrl
INTERSECT
SELECT id, siteUrl
FROM q
Thanks,
J

I am using this query to dodge the foreign key error when trying to delete a record from a table that has primary key and referencing foreign key in the same table. It works with smaller set of data but for a table with 400,000 records it fails with error
: maximum recursion limit of 500 reached. I changed maxrecursion to 3267 and even 0. but no records were returned it in fact went to infinite loop..
That is a questionable approach. Don't dodge table constraints. They have a reason to be there. Deep recursion is also doubtful approach.
USE tempdb;
GO
SELECT * INTO Employee FROM AdventureWorks.HumanResources.Employee;
GO
ALTER TABLE Employee ADD constraint PK PRIMARY KEY (EmployeeID);
ALTER TABLE Employee ADD constraint fkPK FOREIGN KEY (ManagerID) REFERENCES Employee(EmployeeID);
GO
SELECT * FROM Employee;
GO
-- Staff - no child records
DELETE Employee WHERE EmployeeID = 283; -- (1 row(s) affected)
-- Manager - child records
DELETE Employee WHERE EmployeeID = 284;
Msg 547, Level 16, State 0, Line 19
The DELETE statement conflicted with the SAME TABLE REFERENCE constraint "fkPK". The conflict occurred in database "tempdb", table "dbo.Employee", column 'ManagerID'.
The statement has been terminated.
Kalman Toth Database & OLAP Architect
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Delete a record from a table in a Database with Database Connectivity

I can't find the function from the Database Connectivity library that allows me to delete a record from a table of the database. I tried to use DB Tools Free Object.vi function but this one deletes only the table created with a query.
Thankyou

I have used the sql query as described above and it works fine with access DB and the DB toolkit, the free object vi only deallocated a recordset's references this will noty alter the database since the record is a copy of the databases information. The SQL delete function is very versatile and you should be able to delete records with no problem.
Paul
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Is it safe to purge / delete older records from AUD$ table in SYS schema

Hi,
Can we purge / delete older records from AUD$ table in SYS schema.
Please advice.
Thanks
Naveen

Pl see MOS Doc 73408.1 (How to Truncate, Delete, or Purge Rows from the Audit Trail Table SYS.AUD$) fro details on how to do so.
HTH
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Deleting records from a recursive table query

Hi All,
I have the follow query, I would like to ask for your help, please: we use recursive tables for various purposes and one of them may have 100,000's records.
What would be the best approach to delete records from such a table?
I was thinking about two below, but any additional one will be more than welcome as well:
(1) I can DELETE FROM my_table WHERE my_table_id IN (SELECT my_table_id FROM my_table START WITH my_table_parent_id = X CONNECT BY PRIOR my_table_id = my_table_parent_id, but it means that I will run on my_table twice, no?
(2) I thought also to create a Foreign Key of my_table_id REFERENCES my_table_parent_id, but then I am afraid it will effect DML commands on that table.
Thank you in advance

Hi,
kdwolf wrote:
... (1) I can DELETE FROM my_table WHERE my_table_id IN (SELECT my_table_id FROM my_table START WITH my_table_parent_id = X CONNECT BY PRIOR my_table_id = my_table_parent_id, but it means that I will run on my_table twice, no?Sorry, I'm not sure whqt you mean by "I will run on my_table twice". Assuming you don't already have a foreign key constraint (as you described below) I don;t know any other way, let alone a more efficient way, to get the same results.
(2) I thought also to create a Foreign Key of my_table_id REFERENCES my_table_parent_id, but then I am afraid it will effect DML commands on that table.You're right; a foreign key constraint always costs a little whenever you do DML. Someone who knows your application and your system as well as you do will have to decide if the benefit of having accurate, consistent data justifies that additional cost. If you're not sure, I suggest you add the constraint.
One advantage of having a foreign key constraint is that you can create it with the "ON DELETE CASCADE" option. Then, if you simply say "DELETE FROM my_table WHERE my_table_patrent_id = X", all the descendants of those rows will automatically be deleted, exactly as you requested in (1) above.

Deleting rows from very large table

Hello,
I need to delete rows from a large table, but not all of them, so I can't use truncate. The delete condition is based on one column, something like this:
delete from very_large_table where col1=100;
There's an index (valid, B-tree) on col1, but it still goes very slow. Is there any instruction which can help delete rows faster?
Txh in adv.
A.

Your manager doesn't agree to your running an EXPLAIN PLAN? What is his objection? Sounds like the prototypical 'pointy-hair boss'.
Take a look at these:
-- do_explain.sql
spool explain.txt
-- do EXPLAIN PLAN on target queries with current index definitions
truncate table plan_table
set echo on
explain plan for
<insert query here>
set echo off
@get_explain.sql
-- get_explain.sql
set linesize 120
set pagesize 70
column operation     format a25
column query_plan     format a35
column options          format a15
column object_name     format a20
column order           format a12
column opt           format a6
select     lpad(' ',level) || operation "OPERATION",
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     cardinality "rows",
     substr(optimizer,1,6) "OPT"
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start     with id = 0
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How to delete the row from the ADF table using popup box

Hi,
I have one requirement like need to delete a record from the table, but that time need to show one popup window for confirmation of the deletion. I am using Delete buttom from the vo operations. I am able to delete the row with out popup but when i used the popup that time deletion is not happening.
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Issue was resolved.

Retrieve data from a large table from ORACLE 10g

I am working with a Microsoft Visual Studio Project that requires to retrieve data from a large table from Oracle 10g database and export the data into the hard drive.
The problem here is that I am not able to connect to the database directly because of license issue but I can use a third party API to retrieve data from the database. This API has sufficient previllege/license permission on to the database to perform retrieval of data. So, I am not able to use DTS/SSIS or other tool to import data from the database directly connecting to it.
Here my approach is...first retrieve the data using the API into a .net DataTable and then dump the records from it into the hard drive in a specific format (might be in Excel file/ another SQL server database).
When I try to retrieve the data from a large table having over 13 lacs records (3-4 GB) in a data table using the visual studio project, I get an Out of memory exception.
But is there any better way to retrieve the records chunk by chunk and do the export without loosing the state of the data in the table?
Any help on this problem will be highly appriciated.
Thanks in advance...
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Edited by: Jahedur on May 16, 2010 11:42 PM

Girish...Thanks for your reply...But I am sorry for the confusions. Let me explain that...
1."export the data into another media into the hard drive."
What does it mean by this line i.e. another media into hard drive???
ANS: Sorry...I just want to write the data in a file or in a table in SQL server database.
2."I am not able to connect to the database directly because of license issue"
huh?? I never heard this question that a user is not able to connect the db because of license. What error / message you are getting?
ANS: My company uses a 3rd party application that uses ORACLE 10g. And my compnay is licensed to use the 3rd party application (APP+Database is a package) and did not purchased ORACLE license to use directly. So I will not connect to the database directly.
3.I am not sure which API is you are talking about, but i am running an application of the visual studio data grid or similar kind of controls; in which i can select (select query) as many rows as i needed; no issue.
ANS: This API is provided by the 3rd party application vendor. I can pass a query to it and it returns a datatable.
4."better way to retrieve the records chunk by chunk and do the export without loosing the state of the data in the table?"
ANS: As I get a system error (out of memory) when I select all rows in a datatable at a time, I wanted to retrieve the data in multiple phases.
E.g: 1 to 20,000 records in 1st phase
20,001 to 40,000 records in 2nd phase
40,001 to ...... records in 3nd phase
and so on...
Please let me know if this does not clarify your confusions... :)
Thanks...
-Jahedur Rahman
Edited by: user13114507 on May 12, 2010 11:28 PM

Deleting selected record in Dynamic Internal table

Hi Friends,
I want to delete selected row from a dynamic internal table. The selected entry should be deleted from Adobe and as well as Webdynpro abap.
Kindly help me how to solve this problem.
Thanks in advance.
Regards,
Phani.

Hi Matthias,
Thanks a lot for responding.
In my adobe i kept a check box to delete the record. It should delete the selected ones. But right now, its deleting one by one.
I have coded following script for delete button:
IT_TIME_SHEET --> is my internal table
G_ROW_STATUS is the field to track the action performed.
var tlength = xfa.resolveNodes("IT_TIME_SHEET.DATA[*]").length;
for ( var i=0; i<tlength; i++
if(xfa.resolveNode("IT_TIME_SHEET.DATA["i"].FLAG").rawValue ==
1 )
IT_TIME_SHEET.DATA.instanceManager.removeInstance(i);
G_ROW_STATUS.rawValue = "DELETE";
In the Webdynpro abap following code I wrote:
    row_count = 1.
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      row_count = row_count + 1.
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Suppose if two records checkboxes are selected I can loop at the internal table IT_TIME_SHEET in webdynpro and delete where checkbox is selected.
But problem is once user deletes records, adobe is deleting only one record and if i delete two records from webdynpro it looks like something wrong for the user.
Please help me how to solve this problem.
Regards,
Phani.

Deleting partner records from CRM order.

Hi Experts ,
I have a requirement where I need to delete partner record from order. For that I am using the function module 'CRM_ORDER_MAINTAIN' . This is the code that I am using but I am unable to delete the record.
REPORT ZSDTESTORDER5.
parameters: guid1 type crmd_orderadm_h-guid.
data: guid2(32) type c.
data: ls_new_partners type CRMT_PARTNER_COM.
data: lt_new_partners type CRMT_PARTNER_COMT.
data: guid type COMT_PARTNERSET_GUID.
data: ls_input_fields type CRMT_INPUT_FIELD.
data: lt_input_fields type CRMT_INPUT_FIELD_TAB.
data: ls_logical_key type CRMT_LOGICAL_KEY.
data: ls_input_field_name type CRMT_INPUT_FIELD_NAMES.
data: IT_OBJECTS_TO_SAVE type CRMT_OBJECT_GUID_TAB.
data: ET_OBJECTS_NOT_SAVED type CRMT_OBJECT_GUID_TAB.
data: ET_OBJECTS_NOT_SAVED_WA type CRMT_OBJECT_GUID.
data: IT_OBJECTS_TO_SAVE_WA type CRMT_OBJECT_GUID.
data: txt1(42) type c.
move guid1 to guid.
CLEAR ls_new_partners.
guid2 = guid1.
ls_new_partners-ref_guid = guid.
ls_new_partners-ref_kind = 'A'. "A
ls_new_partners-kind_of_entry = 'C'.
ls_new_partners-ref_partner_handle = '0000'.
ls_new_partners-partner_fct = '00000004'.
ls_new_partners-ref_partner_fct = '00000004'.
ls_new_partners-partner_no = '9000000112'.
ls_new_partners-ref_partner_no = '9000000112'.
ls_new_partners-display_type = 'BP'.
ls_new_partners-ref_display_type = 'BP'.
ls_new_partners-no_type = 'BP'.
ls_new_partners-MAINPARTNER =''.
ls_new_partners-REF_HANDLE = '0000000000'.
INSERT ls_new_partners INTO TABLE lt_new_partners.
CLEAR ls_input_fields.
REFRESH ls_input_fields-field_names.
ls_input_fields-ref_guid = ls_new_partners-ref_guid.
ls_input_fields-ref_kind = ls_new_partners-ref_kind. "A
ls_input_fields-objectname = 'PARTNER'.
ls_input_fields-ref_handle = '0000000000'.
"move ls_new_partners to ls_logical_key.
"concatenate guid2 ls_new_partners-ref_kind ls_new_partners-kind_of_entry ls_new_partners-ref_partner_handle ls_new_partners-partner_fct ls_new_partners-partner_no ls_new_partners-display_type ls_new_partners-no_type into ls_logical_key.
"concatenate '0000' '00000004' '9000000111' into txt1.
"write 'BPBP' to txt1+0(28) .
"txt1 = '0000000000049000000111      BPBP          '.
ls_input_fields-logical_key = '0000000000049000000112    BPBP           ' ." '0000' ls_logical_key.
write:/ ls_input_fields-logical_key.
ls_input_field_name-fieldname = 'PARTNER_FCT'.
"ls_input_field_name-changeable = 'X'.
INSERT ls_input_field_name INTO TABLE ls_input_fields-field_names.
ls_input_field_name-fieldname = 'NO_TYPE'.
INSERT ls_input_field_name INTO TABLE ls_input_fields-field_names.
ls_input_field_name-fieldname = 'DISPLAY_TYPE'.
INSERT ls_input_field_name INTO TABLE ls_input_fields-field_names.
ls_input_field_name-fieldname = 'PARTNER_NO'.
INSERT ls_input_field_name INTO TABLE ls_input_fields-field_names.
ls_input_field_name-fieldname = 'KIND_OF_ENTRY'.
INSERT ls_input_field_name INTO TABLE ls_input_fields-field_names.
INSERT ls_input_fields INTO TABLE lt_input_fields.
"ENDLOOP.
CALL FUNCTION 'CRM_ORDER_MAINTAIN'
EXPORTING
it_partner        = lt_new_partners
CHANGING
ct_input_fields   = lt_input_fields
EXCEPTIONS
error_occurred    = 1
document_locked   = 2
no_change_allowed = 3
no_authority      = 4
OTHERS            = 5.
"CALL FUNCTION 'CRM_ORDER_INITIALIZE'
EXPORTING
IT_GUIDS_TO_INIT                 =
IV_INITIALIZE_WHOLE_BUFFER       =
IV_INIT_FRAME_LOG                =
IV_LOG_HANDLE                    =
IV_KEEP_LOCK                     = FALSE
EXCEPTIONS
ERROR_OCCURRED                   = 1
OTHERS                           = 2
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
commit work.
IT_OBJECTS_TO_SAVE_WA = guid.
append IT_OBJECTS_TO_SAVE_WA to   IT_OBJECTS_TO_SAVE.
CALL FUNCTION 'CRM_ORDER_SAVE'
   EXPORTING
     IT_OBJECTS_TO_SAVE         = IT_OBJECTS_TO_SAVE
   IV_UPDATE_TASK_LOCAL       = FALSE
   IV_SAVE_FRAME_LOG          = FALSE
   IV_NO_BDOC_SEND            = FALSE
IMPORTING
   ET_SAVED_OBJECTS           = ET_SAVED_OBJECTS
   ET_EXCEPTION               =
    ET_OBJECTS_NOT_SAVED       = ET_OBJECTS_NOT_SAVED
CHANGING
   CV_LOG_HANDLE              =
EXCEPTIONS
   DOCUMENT_NOT_SAVED         = 1
   OTHERS                     = 2
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
commit work.
*loop at ET_OBJECTS_NOT_SAVED into ET_OBJECTS_NOT_SAVED_WA.
write:/ ET_OBJECTS_NOT_SAVED_WA.
*endloop.
Through this code I want to delete the partner number '9000000112' for the partner function '00000004'.
But this is not coming. Please tell me if I am missing out something . This is very urgent.
Thanks & Regards,
Samrat Dutta

Hi Samrat Dutta,
          Looks like this FM can not be used to delete partner functions. Generally other parameter structures like appointment etc will have one field called MODE, there we give whether it is creation,change or delete mode. unfortunately for partner parameter structre CRMT_PARTNER_COM does not have MODE field in it to identify whether we are creating,chaging or deleting. i would recommond you try to find out some other FM to delete partners of Order. will let you know if i get come clue on this
Siva

Deleting few records from a large table

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