Delete duplicate values from a table

Hi All
I have a table like this
table:
id name   plan   code
1   sam normal   5
1   sam normal   6
1   sam special 5
1   sam Special 6I need to delete data in such a way that one entry with normal and one entry with special plan should remain and should be with different code. Does not matter whether normal stays with 5 or 6 code.
Can anyone tell me how to do the same? I tried with rowid but it deletes either both normal or both special or returns same code for normal and special.

It is not that trivial, if I correctly understand your reqs. If there are as many plans as thare are codes and you have a row for each combination:
SQL> select *
2    from tbl
3 /
        ID NAM PLAN          CODE
         1 sam normal           5
         1 sam normal           6
         1 sam special          5
         1 sam special          6
SQL> delete tbl
2    where rowid not in (
3                        with t as (
4                                   select rowid rid,
5                                           row_number() over(partition by id,name,code order by plan) plan_rn,
6                                           row_number() over(partition by id,name,plan order by code) code_rn
7                                     from tbl
8                                  )
9                        select rid
10                          from t
11                          where plan_rn = code_rn
12                       )
13 /
2 rows deleted.
SQL> select *
2    from tbl
3 /
        ID NAM PLAN          CODE
         1 sam normal           5
         1 sam special          6
SQL> SY.

Similar Messages

Retrieving duplicate values from a table

I have a table that has 80,000 rows. One column contains text identifiers as varchar2. There are almost all unique. A select count(distinct id) statement returns 79,980 rows. Is there a way to return only the remaining 20?

To know the unique values you can do this. but it would not return the rows, only the 20 or less duplicate values.
SELECT textColumn, count(*) as cnt_occurences
FROM yourTable
GROUP BY txtColumn
HAVING count(*) > 1;

To delete duplicate records from internal table

hi friends,
i have to delete records from internal table based on following criterion.
total fields are 7.
out of which if 4 fields are same and 5th field is different,then both records must be deleted.
in case all five fields are same,the program should do nothing.
for example.
if there are 3 records as follows
a1 b1 c1 d1 e1 f g
a1 b1 c1 d1 e2 w r
a1 b1 c1 d1 e1 j l
then first two records should be deleted as four fields are same but fifth(e) field differs.
but third record should remain as it is evenif first five fields are same for first and third record.
values of last two fields need not to be consider for deleting the records.

LOOP AT ITAB.
V_FILED5 = ITAB-F5. "to compare later
V_TABIX = SY-TABIX. "used to delete if condition not matches
READ TABLE ITAB WITH KEY F1 = ITAB-F1
 F2 = ITAB-F2
 F3 = ITAB-F3
 F4 = ITAB-F4.
IF SY-SUBRC = 0.
 IF ITAB-F5 <> V_FIELD5.
*--both the records to be deleted,as Field5 is different.
 DELETE ITAB INDEX SY-TABIX. "deletes that record
 DELETE ITAB INDEX V_TABIX. "deletes the current record
 ENDIF.
ENDIF.
ENDLOOP.
Message was edited by: Srikanth Kidambi
added comments
Message was edited by: Srikanth Kidambi

Need to remove duplicate rows from a table

Hi Gurus ,
I am using oracle 11.2.0.3 .
SQL> desc osstage.S_EVT_ACT_X;
Name                                      Null?    Type
ROW_ID                                    NOT NULL VARCHAR2(15 CHAR)
LAST_UPD                                  NOT NULL DATE
PAR_ROW_ID                                NOT NULL VARCHAR2(15 CHAR)
ATTRIB_17                                          NUMBER(22,7)
ATTRIB_26                                          DATE
ATTRIB_02                                          VARCHAR2(100 CHAR)
PROCESS_TIMESTAMP                                  TIMESTAMP(6);
now when i give the below command it gives the error as someone has disabled the constraint accidently .
alter table s_evt_act_x enable constraint S_EVT_ACT_X_P1;
Error starting at line 3 in command:
alter table s_evt_act_x enable constraint S_EVT_ACT_X_P1
Error report:
SQL Error: ORA-02437: cannot validate (OSSTAGE.S_EVT_ACT_X_P1) - primary key violated
02437. 00000 - "cannot validate (%s.%s) - primary key violated"
*Cause:    attempted to validate a primary key with duplicate values or null
           values.
*Action:   remove the duplicates and null values before enabling a primary
           key.
Can you please guide me with this issue .

Please refer
Script: Deleting Duplicate Rows from a Table (Doc ID 31413.1)
How to Find or Delete Duplicate Rows in a Table (Doc ID 1004425.6)

How to restrict the user(Schema) from deleting the data from a table

Hi All,
I have scenario here.
I want to know how to restrict a user(Schema) from deleting the values from a table created in the same schema.
Below is the example.
I have created a table employee in abc schema which has two values.
EMPLOYEE
ABC
XYZ
In the above scenario the abc user can only fire select query on the EMPLOYEE table.
SELECT * FROM EMPLOYEE;
He should not be able to use any other DML commands on that table.
If he uses then Insufficient privileges error should be thrown.
Can anyone please help me out on this.

Hi,
kumar0828 wrote:
Hi Frank,
Thanks for the reply.
Can you please elaborate on how to add policies for a table for just firing a select DML statement on table.See the SQL Packages and Types manual first. It has examples. You can also search the web for examples. This is sometimes called "Virtual Private Database" or VPD.
If you have problems, post a specific question here. Include CREATE TABLE and INSERT statements to create a table as it exists before the policies go into effect, the PL/SQL code to create the policies, and additonal DML statements that will be affected by the policies. Show what the table should contain after each of those DML statements.
Always say which version of Oracle you're using. Confirm that you have Enterprise Edition.
See the forum FAQ {message:id=9360002}
The basic idea behind row-level security is that it generates a string that is automatically added to SELECT and/or DML statement WHERE clauses. For example, if user ABC is only allowed to query a table on Sunday, then you might write a function that returns the string
USER != 'ABC'
OR      TO_CHAR (SYSDATE, 'DY', 'NLS_DATE_LANGUAGE=ENGLISH') = 'SUN'So whenever any user says
SELECT *
FROM    table_x
;what actually runs is:
SELECT *
FROM    table_x
WHERE   USER != 'ABC'
OR      TO_CHAR (SYSDATE, 'DY', 'NLS_DATE_LANGUAGE=ENGLISH') = 'SUN'
;If you want to prevent any user from deleting rows, then the policy function can return just this string
0 = 1Then, if somone says
DELETE employee
;what actually gets run is
DELETE employee
WHERE   0 = 1
;No error will be raised, but no rows will be deleted.
Once again, it would be simpler, more efficient, more robust and easier to maintain if you just created the table in a different schema, and not give DELETE privileges.
Edited by: Frank Kulash on Nov 2, 2012 10:26 AM
I just saw the previous response, which makes some additional good points (e.g., a user can always TRUNCATE his own tables). ALso, if user ABC applies a security policy to the table, then user ABC can also remove the policy, so if you really want to prevent user ABC from deleting rows, no matter how hard the user tries, then you need to create the policies in a different schema. If you're creating things in a different schema, then you might as well create the table in a different schema.

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.

Deleting rows from table based on value from other table

Hello Members,
I am struck to solve the issue said below using query. Would appreciate any suggestions...
I have two tables having same structures. I want to delete the rows from TableA ( master table ) with the values from TableB ( subset of TableA). The idea is to remove the duplicate values from tableA. The data to be removed are present in TableB. Catch here is TableB holds one row less than TableA, for example
Table A
Name Value
Test 1
Test 1
Test 1
Hello 2
Good 3
TableB
Name Value
Test 1
Test 1
The goal here is to remove the two entries from TableB ('Test') from TableA, finally leaving TableA as
Table A
Name Value
Test 1
Hello 2
Good 3
I tried below queries
1. delete from TestA a where rowid = any (select rowid from TESTA b where b.Name = a.Name and a.Name in ( select Name from TestB ));
Any suggestions..
We need TableB. The problem I mentioned above is part of process. TableB contains the duplicate values which should be deleted from TableA. So that we know what all values we have deleted from TableA. On deleted TableA if I later insert the value from TableB I should be getting the original TableA...
Thanks in advance

drop table table_a;
drop table table_b;
create table table_b as
select 'Test' name, 1 value from dual union all
select 'Test' ,1 from dual;
create table table_a as
select 'Test' name, 1 value from dual union all
select 'Test' ,1 from dual union all
select 'Test' ,1 from dual union all
select 'Hello' ,2 from dual union all
select 'Good', 3 from dual;
/* Formatted on 11/23/2011 1:53:12 PM (QP5 v5.149.1003.31008) */
DELETE FROM table_a
      WHERE ROWID IN (SELECT rid
                        FROM (SELECT ROWID rid,
                                     ROW_NUMBER ()
                                     OVER (PARTITION BY name, VALUE
                                           ORDER BY NULL)
                                        rn
                                FROM table_a a
                               WHERE EXISTS
                                        (SELECT 1
                                           FROM table_b b
                                          WHERE a.name = b.name
                                                AND a.VALUE = b.VALUE))
                       WHERE rn > 1);
select * from table_a
NAME     VALUE
Test     1
Hello     2
Good     3Edited by: pollywog on Nov 23, 2011 1:55 PM

Delete duplicate entriess from the internal table its urgent pls help.

Hi friends,
Hope everybody is doing good,Here is m query on delete duplicate data from the intenal table.
I have an internal table which contain data in the following format.
Doc No Comp Cod Vendor Assignment
1500000009 JM11 00000000
1500000008 JM11 20070212(Repeating)
1500000007 JM11 20070212
1500000006 JM11 00000000
1500000005 JM11 00000000
1500000004 JM11 00000000(Repeating)
1500000003 JM11 00000000 (Repeating)
1500000002 JM11 00000000
1500000001 JM11 20050302
1500000000 JM11 00000000
1500000003 JM11 10000088
1500000001 JM11 10000088
1500000030 JM11 10006260
1500000010 JM11 10006269
1500000008 JM11 10006269
1500000006 JM11 10006269
1500000004 JM11 10006269
if you see the document numbers,there are some document number which are repeating here,there are some document numer which contain vendor number but not the assignments,some of the document numbers contain the assignments but not the vendors.
If my internal table contain this kind of data with repeted document numbers than i want the document number which contains only the vendor number.
Pls help me with the appropriate logic,its urgent.
Thanks a lot
mrutyun^

Hi,
Deleting Adjacent Duplicate Entries
To delete adjacent duplicate entries use the following statement:
DELETE ADJACENT DUPLICATE ENTRIES FROM <itab>
[COMPARING <f1> <f2> ...
|ALL FIELDS].
The system deletes all adjacent duplicate entries from the internal table <itab>. Entries are
duplicate if they fulfill one of the following compare criteria:
Without the COMPARING addition, the contents of the key fields of the table must be
identical in both lines.
If you use the addition COMPARING <f1> <f2> ... the contents of the specified fields <f1>
<f2> ... must be identical in both lines. You can also specify a field <fi> dynamically as
the contents of a field <ni> in the form (<ni>). If <ni> is empty when the statement is
executed, it is ignored. You can restrict the search to partial fields by
specifying offset and length.
If you use the addition COMPARING ALL FIELDS the contents of all fields of both lines
must be identical.
You can use this statement to delete all duplicate entries from an internal table if the table is
sorted by the specified compare criterion.
If at least one line is deleted, the system sets SY-SUBRC to 0, otherwise to 4.
Examples
DATA: BEGIN OF LINE,
COL1 TYPE I,
COL2 TYPE I,
END OF LINE.
DATA ITAB LIKE HASHED TABLE OF LINE WITH UNIQUE KEY COL1.
DO 4 TIMES.
LINE-COL1 = SY-INDEX.
LINE-COL2 = SY-INDEX ** 2.
INSERT LINE INTO TABLE ITAB.
ENDDO.
LINE-COL1 = 1.
DELETE TABLE ITAB: FROM LINE,
WITH TABLE KEY COL1 = 3.
LOOP AT ITAB INTO LINE.
WRITE: / LINE-COL1, LINE-COL2.
ENDLOOP.
The output is:
2 4
4 16
The program fills a hashed table with a list of square numbers. The DELETE
statement delete the lines from the table where the key field COL1 has the contents 1 or 3.
Regards,
Bhaskar

How to avoid duplicates values from alvgird see below code

how to avoid duplicates values from alvgird see below code
in below query docno no is repeated again and again
how i can avoid duplication in this query.
select * into corresponding fields of table itab
 from J_1IEXCHDR
 inner join J_1IEXCDTL
 on J_1IEXCDTLlifnr = J_1IEXCHDRlifnr
 where J_1IEXCHDr~status = 'P'.

Hi Laxman,
after that select statement
select * into corresponding fields of table itab
from J_1IEXCHDR
inner join J_1IEXCDTL
on J_1IEXCDTLlifnr = J_1IEXCHDRlifnr
where J_1IEXCHDr~status = 'P'.
if sy-subrc = 0.
delete adjucent duplicates from itab comparing <field name of itab internal table>
endif.
this will delete your duplicate entries.once you done with this call the alv FM.
 call function 'REUSE_ALV_GRID_DISPLAY'
exporting
I_INTERFACE_CHECK = ' '
I_BYPASSING_BUFFER = ' '
I_BUFFER_ACTIVE = ' '
 i_callback_program = v_repid
I_CALLBACK_PF_STATUS_SET = ' '
I_CALLBACK_USER_COMMAND = 'IT_USER_COMMAND'
I_CALLBACK_TOP_OF_PAGE = ' '
I_CALLBACK_HTML_TOP_OF_PAGE = ' '
I_CALLBACK_HTML_END_OF_LIST = ' '
I_STRUCTURE_NAME =
I_BACKGROUND_ID = ' '
 i_grid_title = 'Purchase Order Details'
I_GRID_SETTINGS = I_GRID_SETTINGS
 is_layout = wa_layout
 it_fieldcat = it_fieldcat
IT_EXCLUDING = IT_EXCLUDING
IT_SPECIAL_GROUPS = IT_SPECIAL_GROUPS
 it_sort = it_sort
IT_FILTER = IT_FILTER
IS_SEL_HIDE = IS_SEL_HIDE
I_DEFAULT = 'X'
I_SAVE = ' '
IS_VARIANT = IS_VARIANT
 it_events = it_event
IT_EVENT_EXIT = IT_EVENT_EXIT
IS_PRINT = IS_PRINT
IS_REPREP_ID = IS_REPREP_ID
I_SCREEN_START_COLUMN = 0
I_SCREEN_START_LINE = 0
I_SCREEN_END_COLUMN = 0
I_SCREEN_END_LINE = 0
I_HTML_HEIGHT_TOP = 0
I_HTML_HEIGHT_END = 0
IT_ALV_GRAPHICS = IT_ALV_GRAPHICS
IT_HYPERLINK = IT_HYPERLINK
IT_ADD_FIELDCAT = IT_ADD_FIELDCAT
IT_EXCEPT_QINFO = IT_EXCEPT_QINFO
IR_SALV_FULLSCREEN_ADAPTER = IR_SALV_FULLSCREEN_ADAPTER
IMPORTING
E_EXIT_CAUSED_BY_CALLER = E_EXIT_CAUSED_BY_CALLER
ES_EXIT_CAUSED_BY_USER = ES_EXIT_CAUSED_BY_USER
 tables
 t_outtab = ITAB
exceptions
 program_error = 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.
Thanks
Vikranth Khimavath

Removing duplicate values from selectOneChoice bound to List Iterator

I'm trying to remove duplicate values from a selectOneChoice that i have. The component binds back to a List Iterator on the pageDefinition.
I have a table on a JSF page with 5 columns; the table is bound to a method iterator on the pageDef. Then above the table, there are 5 separate selectOneChoice components each one of which is bound to the result set of the table's iterator. So this means that each selectOneChoice only contains vales corresponding to the columns in the table which it represents.
The selectOneChoice components are part of a search facility and allow the user to select values from them and restrict the results that are returned. The concept is fine and i works. However if i have repeating values in the selectOneChoice (which is inevitable given its bound to the table column result set), then i need to remove them. I can remove null values or empty strings using expression language in the rendered attribute as shown:
<af:forEach var="item"
items="#{bindings.XXXX.items}">
<af:selectItem label="#{item.label}" value="#{item.label}"
rendered="#{item.label != ''}"/>
</af:forEach>
But i dont know how i can remove duplicate values easily. I know i can programatically do it in a backing bean etc.... but i want to know if there is perhaps some EL that might do it or another setting that ADF gives which can overcome this.
Any help would be appreciated.
Kind Regards

Hi,
It'll be little difficult removing duplicates and keeping the context as it is with exixting standard functions. Removing duplicates irrespective of context changes, we can do with available functions. Please try with this UDF code which may help you...
source>sort>UDF-->Target
execution type of UDF is Allvalues of a context.
public void UDF(String[] var1, ResultList result, Container container) throws StreamTransformationException{
ArrayList aList = new ArrayList();
aList.add(var1(0));
result.addValue(var1(0));
for(int i=1; i<var1.length; i++){
if(aList.contains(var1(i)))
continue;
else{
aList.add(var1(i));
result.addValue(var1(i));
Regards,
Priyanka

How to get input text values from adf table - Urgent

Hi Friends,
This is my requirement. I designed customized master - detail - detail page. I customized the page in below format.
1. Master Data Field (Input text,etc) .
2. Detail in table format ( Rows are mapped to child table) and i given two buttons for to create row and delete row. I designed the table based on the example provided in forum for to create customized table. The input text component is mapped to the rows.
Now i want to retrieve all the data's entered in the rows. The table is mapped to child table. When i read the values from the table its showing null.
If any one faced this problem and fixed it, please send me the solution.
Thanks & Regards
VB

Did you look into the valueChangeEvent?
It has oldValue and newValue attributes.
public void SaveMaterial(ValueChangeEvent valueChangeEvent) {
Object oldVal = valueChangeEvent.getOldValue();
Object newVal = valueChangeEvent.getNewValue();
// check if you see what you are looking for.....
getSelectedRow();
SaveMaterial(material);
}Timo

How to truncate the values from the table

Hi All,
I am working on an issue..where we are first deleting all the records from the table and then based on few conditions we are putting the records back in that table...when we tried to run this program along with few others those who are doing almost the same stuff we are having issues...we tried to schedule few jobs related to these programs only...but after a ceratin amount of time couple of jobs got canceled...I was talking to my basis guy and he said the problem is ratehr then truncating the records from the table we are deleting the records and it's taking lots and lots of space to execute...so we need to truncate the records from the table insted of deleting it...we are using the following the statement right now:
    DELETE FROM ZTUS_PG.
    COMMIT WORK.
So can you please tell me how can we truncate the values from this table instead of just deleting them and what would be effect of this.
Thanks,
Rajeev Gupta

I don't think basis is saying you should delete all the records from the table. They are saying remove the table and it's contents (a much faster thing to do). I'm not sure this the right thing to do, but you can have a look at:
http://publib.boulder.ibm.com/infocenter/db2luw/v9/index.jsp?topic=/com.ibm.db2.udb.apdv.sample.doc/doc/admin_scripts/s-truncate-db2.htm
Something like:
EXEC SQL.
TRUNCATE TABLE ZTUS_PG REUSE STORAGE
ENDEXEC.
COMMIT WORK.                      "Empty table is committed here
Rob
Edited by: Rob Burbank on Dec 1, 2008 4:06 PM

How to delete null values in a table

hi all,
tell me please any one how to delete null values in a table
example:
in emp table is there
empno ename job mgr sal deptno
7900 scott 7902 2000 10
7499 clerk 7900 20
7834 james manager 3000 30
like this in the above emp table there are some null values are there
so how to delete the null values in emp table
thanks,
regards.
Edited by: user9195968 on Feb 25, 2010 6:30 AM

not too sure what you mean, perhaps you could supply a table description and some sample data
but, consider
delete from table_1 where column_1 is null
commit
/

How to delete duplicate value in movement type 541 & 542(alv report)

hi experts,
i have some problem in alv report,
input we can give some movement type for ex(101,102,541,542, etc)
how to delete duplicate value in 541 and 542.
regards
gunasekaran.

Try:
Delete adjacent duplicates from ITAB comparing FIELD1, FIELD2.
to do this the ITAB must be Sorted first.!

Deleting a row from parent table

Dear Guru's
I am having two table with parent - child relationship. My problem is when I am deleting a row from parent table the curresponding child row from child table also should be deleted.
My Primary table 'Employee, EMPID Primary key
Child table 'Privilage' inthis EMPID referencing the EMPID of Employee table
My need is when I am deleting a row from parent table the curresponding child row from child table also should be deleted
I issued the SQL query like,
delete from employee where empid='12345' cascade constraints;
Then it showing me error like,
ERROR at line 1:
ORA-00933: SQL command not properly ended
Please resolve my issue , Its Top urgent
Thanks & Cheers
Antony

Choosing How Foreign Keys Enforce Referential Integrity
Oracle Database allows different types of referential integrity actions to be enforced, as specified with the definition of a FOREIGN KEY constraint:
Prevent Delete or Update of Parent Key The default setting prevents the deletion or update of a parent key if there is a row in the child table that references the key. For example:
CREATE TABLE Emp_tab (
FOREIGN KEY (Deptno) REFERENCES Dept_tab);Delete Child Rows When Parent Key Deleted The ON DELETE CASCADE action allows parent key data that is referenced from the child table to be deleted, but not updated. When data in the parent key is deleted, all rows in the child table that depend on the deleted parent key values are also deleted. To specify this referential action, include the ON DELETE CASCADE option in the definition of the FOREIGN KEY constraint. For example:
CREATE TABLE Emp_tab (
    FOREIGN KEY (Deptno) REFERENCES Dept_tab
        ON DELETE CASCADE); Set Foreign Keys to Null When Parent Key Deleted The ON DELETE SET NULL action allows data that references the parent key to be deleted, but not updated. When referenced data in the parent key is deleted, all rows in the child table that depend on those parent key values have their foreign keys set to null. To specify this referential action, include the ON DELETE SET NULL option in the definition of the FOREIGN KEY constraint. For example:
CREATE TABLE Emp_tab (
    FOREIGN KEY (Deptno) REFERENCES Dept_tab
        ON DELETE SET NULL);
SQL> conn scott/tiger
Connected.
SQL> create table ppk ( no number primary key);
Table created.
SQL> begin for inn in 1..10 loop insert into ppk values (inn); end loop; end;
PL/SQL procedure successfully completed.
SQL> create table ffk ( no number references ppk(no));
Table created.
SQL> begin for inn in 1..10 loop insert into ffk values (inn); end loop; end;
PL/SQL procedure successfully completed.
SQL> drop table ppk cascade constraints;
Table dropped.Message was edited by:
user52
Message was edited by:
user52
Message was edited by:
user52

Delete duplicate values from a table

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