PL/SQL :: Delete Duplicate Values From A Table?
Aug 22, 2012
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 6
I 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.
I tried with rowid but it deletes either both normal or both special or returns same code for normal and special.
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Sep 8, 2008
In oracle 9i ........How to delete duplicate entries in a table ?
if suppose in a table named office, one or more entry(row) is repeated more then twice or minimum twice.
I need a query to delete the multiple entries ....
Note:
--->No constraints applied on the table.
--->No Primary Key
--->You cannot create any object....that is no view or a duplicate table can be created
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Apr 13, 2011
I need to delete duplicate records from a table (indeed they are multiple duplicates).
Table Data
IDGroupQty
1KK30
1KK0
1KK19
2AA0
2AA30
3AA0
3AA30
3AA30
3AA9
My aim is to delete duplicates out of above data, with the below condtions.
1) first record with value 30 and then with value 0.
2) if there are 3 duplicate records ex: ID is 1 and Group KK, then i have to delete both 30 & 0 qty records.
3) If there are more than 3 duplicate records ex: ID is 3 and Group is AA, the i have to delete all the records with qty value either 30 or 0 and.
I have written a query like below.
SELECT id,
unit,
RANK ()
OVER (PARTITION BY id, unit
ORDER BY id, unit)
num
FROM temp;
with the above query, i am unable to mark this dynamic duplications.
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Aug 30, 2010
How can i delete duplicate records from the table.
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May 12, 2011
I have written this below code. The logic behind the code is, Delete the duplicate record from a table, and delete those record from other 7 table based on the SL_NUMBER.
But Problem is After delete the duplicate record When I have use Below statement
RETURNING SL_NUMBER BULK COLLECT INTO rec_sl_number;
This statement unable to return approx 40 Lakhs SL_NUMBER
DECLARE
rec_sl_number dbms_sql.number_table;
BEGIN
[Code]....
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Mar 1, 2010
I want to delete the duplicate rows in a table without using ROWID.
I have the following data.
SNO SNAME SECTION
1 RAM A
2 SHYAM B
2 SHYAM B
3 KISHOR C
3 KISHOR D
4 RAMESH E
5 RAJESH F
5 RAJESH F
The Output Should be like this.
SNO SNAME SECTION
1 RAM A
2 SHYAM B
3 KISHOR C
3 KISHOR D
4 RAMESH E
5 RAJESH F
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Nov 19, 2010
how i can chk & delete duplicate rows from a table
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Nov 24, 2011
I need to delete the duplicate values from plsql table OR move the distinct values in plsql table to other plsql table.
how can i do this ?
DECLARE
TYPE alist IS TABLE OF VARCHAR2(10) INDEX BY BINARY_INTEGER;
p_tbl alist;
BEGIN
p_tbl(1) := 'A1';
p_tbl(2) := 'B2J';
p_tbl(3) := 'A1';
[code]......
The p_tb1 table contains all the above values including duplicates. Now I need only distinct values to be copied in another plsql table of same type.
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Apr 23, 2010
how to select 1st record from duplicate vales in a table.
If we created one table with out primary key column In form in search block have uwi value and top_depth value when i enter uwi and top_depth value then when i click search button then it will display all values in master block.
but here duplicate values r there.
SQL> select rownum,uwi,top_depth,base_depth,test_start_date from well_pre_header;
ROWNUM UWI TOP_DEPTH BASE_DEPTH TEST_STAR
---------- ---------------- ---------- ---------- ---------
1 100 453.05 458.08 09-SEP-10
2 100 200 288 23-AUG-00
3 1001 200 289 25-AUG-01
4 1001 200 201 24-MAY-87
if uwi = 1001 and top_depth=200 and i will click search button it should be display 3 record & when i click next button then it will show 4th record.
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Feb 6, 2011
I having a problem with duplicate rows with a query.
What I have so far is
SELECT D.Student_Id,
E.Latest_Reg_Date,
E.Attendance_Count,
[Code].....
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Apr 8, 2012
I have a requirement to delete duplicate records. For example,if the below query retrieves count of duplicate records along with the column values.
select col2,col3,col4,col5,col6,col7,count(*) from table
group by
col2,col3,col4,col5,col6,col7
having count(*) > 1;
I would like to retain only one record with max(col1) which is a surrogate key and other records should be deleted.How to retain one record in a duplicate record set based on max of certain column.
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Sep 29, 2010
say I have duplicate records in TABLE3, can I use following SQL to delete the duplicates?FYI, BUS_FID is unique number column.
TABLE3
------------------------
ori_id*************id***********r_f_a****r_t_a*******bus_id
72840000040572*****740040572****255******267*********1
72840000040572*****740040572****255******267*********2
2840000040572******20040572*****25*******27**********3
7840000040572******70040572*****2********6***********4
DELETE FROM TABLE3 WHERE BUS_ID NOT IN (SELECT MIN(BUS_ID) FROM TABLE3 GROUP BY ORI_ID);
consider TABLE3 has millions of millions of data, say 40 millions.Update, I have tried it and it is very slow...
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Apr 7, 2012
I want to delete the duplicate records from a table without using Below 2 methods:
1> delete from table_1 a where row_id not in (select min(row_id) from Table_1 b where a.PK=b.PK);
2> Insert into Table_2 select distinct * from Table_1;
Drop table Table_1;
Rename Table_2 to Table_1;
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Dec 22, 2012
how to delete duplicated records from a table without using row_id. I found the duplicated rows from a table using Analytical Function. But i could not use the Analytical function in the where condition.
My table(tab2) Structure is
DEPTNODEPT_NAMEEMPIDSEXID1
107jadf 1F1
40asdf 55
10purchase 2M2
10sales 3M3
30HR 4F4
I found the Duplicate Record by using the query
with a as
(select deptno,dept_name,empid,sex,id1,row_number()over(partition by deptno order by deptno) rnum from tab2)
select * from a where rnum >1
how to delete duplicate record .
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Jul 29, 2013
Created three tables and group by 3 tables column name. want to delete duplicate record without first table(test). Delete the duplicate record in test1 and test2 except test.
SELECT a as Name,b as M_Name, c as L_Name, count(*) FROM ( SELECT first_name as a, middle_name as b, last_name as c FROM test UNION ALL SELECT first_name as a, middle_name as b, last_name as c FROM test1 UNION ALL SELECT first_name as a, middle_name as b, last_name as c FROM test2 ) as countGROUP BY a,b,cHAVING count(*) > 1
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Sep 1, 2010
I have table with below values
SELECT * FROM dup_val
1
1
1
1
2
2
2
2
3
The result set should be like
1-1
1-2
1-3
1-4
2-1
2-1
2-2
2-3
3-1
the query get the above result set.
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Apr 25, 2011
How to find the duplicate values in two columns.
Suppose we have two columns A and B and the data looks like this
A B
--- ---
1 One
2 Two
1 One
2 Two
3 Three
I need to write a query in such a way that i should find out the duplicate values which are repeating.
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Aug 6, 2010
Yesterday (05/08/2010) i have mistakenly inserted duplicate values in the tables, every value is inserted 2 times in a table.
so upto my knowledge the data were correct upto 30/Jul/2010. hence i need to recover the data from this 30th Jul date.
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Jun 19, 2012
I have two tables
Table1
Id1 Name1
1 Jack
2 Jack
3 John
Table2
ID2 Name2
NULL Jack
NULL John
I would be assigning ID2 from ID1 based on name match.As Jack has 2 ids when I use the statement
UPDATE TABLE2
set id2 = (select distinct ID1 from table1 where table1.name1=table2.name2);
I get an error message as select statement would return more than one row and the update statement fails completely. with the sql statement to update the ID2 as error when we have duplicate records and continue with the update for other records.
like
table
ID2 Name2
ERROR Jack
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May 13, 2012
i have master-detail form.in master my bill_id gets generated when new form is open and i copy the same bill_id in detail(tabular)for each item.all the items which i enter in detail form get save the same bill_id which got generated.
in another form(which is tabular) i want to display bill_id's from detail form.but in detail form . There are same bill_id's more than once.but i want to display those bill_id's which are more than once only once.
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Sep 15, 2012
I have below query.. When i run this query i need to get two rows.. But i am getting two more duplicate rows.. I want to restrict these two rows..
How can i do this.. Here the problem is when i join B query then only i am getting duplicate rows..
SELECT DISTINCT B.TIC_ID, B.TIC_ISS_NO,
B.TIC_NUMBEC||CEV_ID,
B.TIC_NUMBEC, B.CEV_ID, B.AOSTED_DATE,
B.COMAANY_CODE, B.CONTCACTOC_NAME,
B.FC_CODE, B.C_NO, B.FC_TYAE,
[code].......
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Dec 16, 2009
I am trying write a script that will return all values (based on the minimum tarif) from the Germany table for any duplicate values. Duplicate values are any values with the same UFI, ZC,limitid,depot. The German table also contains the fields tarif, city, supplier, etc.
Below is the script I have previously used to sort out duplicates. I have tried 50 different ways get it to return just lines for the minimum tariff but haven't been successful.
select *
from Germany t
where (ufi,zc,limitid,depot) in (
select ufi,zc,limitid,depot from (
select ufi,zc,limitid,depot, count(*) n
from Germany t
group by ufi,zc,limitid,depot)
where n<>1
)
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Mar 16, 2010
Table contains duplicate data . Have to move data to another table. Criteria: check for duplicate values if duplicate exist move all duplicates except one to the history table. While moving to other table see if the record being moved already exists.
source table
SOURCE TABLE : ODS_OWNER
grp_id grp_name face_id address1 city zipcode
3456789 NIKE AERO 457899 707 CROFT GRAND RA 12345
1256789 NIKE AERO CORP 678899 707 CROFT SE GRAND RA 12345
5465455 BB SHIPPING 809708 201 SOUTH CT DESPLAINE 45434
[Code]....
FIRST 4 RECORDS ARE DUPLICATES FROM WHICH 1 RECORD GOES TO w_grp AND ONE GOES TO HISTORY TABLE. THE RECORD WHICH GOES INTO w_grp OUT OF THE DUPLICATES WILL DEPEND ON THE LAST MODIFIED DATE FOR EACH
DISTINCT VALUES GO IN w_grp TABLE
DUPLICATE GO INTO match_his TABLE
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Mar 22, 2013
is it possible to remove duplicate values in plsql collections without using multistage operators ?
plsql collections output:
ID NAME
----- -------
001 A
001 A
002 B
003 C
004 D
005 E
005 E
005 E
expected output
ID NAME
----- -------
001 A
002 B
003 C
004 D
005 E
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Sep 10, 2012
CREATE TABLE prim_tbl
(id NUMBER,--- id is not primary key here
description VARCHAR2(30));
INSERT ALL
INTO prim_tbl VALUES (1,'aad')
INTO prim_tbl VALUES (1,'aads')
INTO prim_tbl VALUES (2,'bb')
INTO prim_tbl VALUES (2,'cc')
INTO prim_tbl VALUES (2,'dd')
SELECT * FROM dual;
I want to select the ids only one time, i.e my output will have only two rows: one row with id as 1 and other row with id 2 whatever be the description.
desired output sample:
Quote:1, aad
2, bb
I used:
select distinct(id),description from prim_tbl;
but it did not give the required result.How can I get it??
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May 13, 2013
I'm going to do some testing, and for that I require to retrieve some data based on a single column e.g test_data_col, which -
1. Has 3 or more count(test_data_col) for a given set of group by columns e.g grp_col1, grp_col2, grp_col3
2. Within the set of rows retrieved, that particular column holds some duplicate values. I don't need the duplicates displayed, just know if duplicates exist or not.
This might explain what I'm trying to do -
grp_col1, grp_col2, grp_col3, test_data_col
1, A, xyz, HELLO
1, A, xyz, HELLO
1, A, xyz, BYE
1, A, xyz, GOODBYE
2, C, pqr, WELCOME
2, C, pqr, GOOD MORNING
2, C, pqr, BAD MORNING
So for condition 1, I do something like this -
SELECT COUNT(test_data_col) cnt, grp_col_1, grp_col2, grp_col3
FROM test_tab
GROUP BY grp_col_1, grp_col2, grp_col3
HAVING COUNT(test_data_col) >= 3;
In this same query, I want to do something that will tell me if the aggregate COUNT(test_data_col) has any duplicate values within it. Again, displaying the duplicates is not important here.
SELECT COUNT(test_data_col) cnt, grp_col_1, grp_col2, grp_col3,
/*some logic*/ dup_val
FROM test_tab
GROUP BY grp_col_1, grp_col2, grp_col3
HAVING COUNT(test_data_col) >= 3;With the proper coding to replace /*some logic*/, I get following values -
cnt, grp_col_1, grp_col2, grp_col3, dup_val
4, 1, A, xyz, Y
3, 2, C, pqr, N
I just gave dup_val column to explain what I'm trying to achieve.. any other way to know the existence of duplicates in the count aggregate will be fine.My Oracle version is Oracle Database 11g Enterprise Edition Release 11.1.0.7.0
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Jul 15, 2013
Are some posibilities to exclude duplicate values do not using sql aggregate functions in main select statement? Priview SQL statement
SELECT * FROM
(
select id,hin_id,name,code,valid_date_from,valid_date_to
from diaries
)
[Code]....
In this case i got duplicate of entry TT2 id 50513 In main select statement cant use agregate functions are even posible to exclude this value from result modifying only the QLRST WHERE clause (TRUNC need to be here)
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Dec 20, 2012
I have a set of data within a table with a column called telephone_numbers. What I have noticed is that for some reason I have data in there that is not numerical values only i.e. LLSSUU. Is it possible to delete all non numerical values from this column?
The problem is I have over 1000 fields to go through and was wondering if there is a query that i can write.
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Dec 4, 2012
Database version: 11.2.0.3.0
I need to remove duplicate values from concatenated long string of state codes(comma separated). Ex: 'VA,VA,PA,PA,CT,NJ,CT,VA'. I tried following query and did not get required out put.
select regexp_replace('VA,VA,PA,PA,CT,NJ,CT,VA,CT,PA,VA,CT','([^,]*)(,1)+($|,)', '13') new_str from dual;
Define Meta-character's format in regular expression to get desired result. Out put required: VA,PA,CT,NJ (with out any duplicates).
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Dec 23, 2010
My scenario is to insert values into 'out' column by comparing 's' and 'IP' columns of temp table.The exact situation is at first need to go to ip column,take a value and then go to source column and check for the same value of ip which is taken previously.Then after corresponding ip of that source column should be inserted back in previous source column.
The situation is marked clearly in file which i am attaching with '--' comments at respective places.I am also pasting the code which i tried out,unfortunately it is giving error as exact fetch returns more than requested number of rows since there are duplicates in the table.I tried it using nested for loops.Also implemented using rowid,but it didnt work.
fixing the errors or if there is any new logic that can be implemented.
DECLARE
i_e NUMBER(10);
BEGIN
FOR cur_1 IN(SELECT IP from temp where IP IS NOT NULL)
LOOP
FOR cur_2 IN(SELECT IP from temp where s=cur_1.IP)
[Code]...
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