SQL & PL/SQL :: Get Distinct / First Record From Jungle Of Duplicates?
Aug 30, 2010
I am trying to work with query to get distinct unique records, following is my scenerio:
DocNo |Title| Revs|UpdateTime|OBID
DOC-101|DESCRIPTION1|1|2/28/2004 11:37|6108-9
DOC-101|DESCRIPTION1|1|2/28/2004 11:36|6106-13
DOC-201|DESCRIPTION2|0|4/24/2005 16:44|7899-1
[code]...
From the above duplicates I would like to get only 1 distinct record based on latest update time (when using distinct on a sub-query since OBID is unique again returning all recds)
I am expecting results like:
DocNo|Title| Revs|UpdateTime|OBID
DOC-101|DESCRIPTION1|1|2/28/2004 11:37|6108-9
DOC-201|DESCRIPTION2|0|4/24/2005 16:47|7900-1
DOC-301|DESCRIPTION3|3|2/21/2007 7:26|6869-4
DOC-304|DESCRIPTION4|3|8/22/2007 9:31| 39208-1
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Aug 17, 2012
I have a requirement with source table has duplicates so i need to select a row based upon the below condition.
Source table
EMP_NO ENAME SALARY CODE EMP_ID
1 TOM 1000 1 10
1 JOHN 2000 A 20
1 SAM 3000 A 30
2 TOM 500 1 40
2 SUNG 1500 1 50
Desired Output
EMP_NO ENAME SALARY CODE EMP_ID
1 TOM 1000 1 10
2 SUNG 1500 1 50
I tried with MAX and DENSE_RANK but its not getting me the first row.
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Aug 17, 2012
I have a requirement with source table has duplicates so i need to select a row based upon the a condition.
Source table
EMP_NO ENAME SALARY CODE EMP_ID
1 TOM 1000 1 10
1 JOHN 2000 A 20
1 SAM 3000 A 30
2 TOM 500 1 40
2 SUNG 1500 1 50
Desired Output
EMP_NO ENAME SALARY CODE EMP_ID
1 TOM 1000 1 10
2 SUNG 1500 1 50
I tried with MAX and DENSE_RANK but its not getting me the first row.
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Aug 21, 2013
How to eliminate duplicates from record types?Below code errors out with "Wrong number of arguments in call to MULTISET...."
error. DeclareTYPE ln_x_tab IS RECORD(x1 number ,x2 VARCHAR2(4000) ,x3 VARCHAR2(4000) ,x4 VARCHAR2(4000) ,x5 VARCHAR2(4000)); TYPE ln_x_type IS TABLE OF ln_x_tab INDEX BY BINARY_INTEGER; ln_x1 ln_x_type; ln_dist_x1 ln_x_type; gc_stmt varchar2(4000); Begin gc_stmt := ' SELECT x1, x2, x3, x4, x5 FROM table WHERE dynamic_conditions; EXECUTE IMMEDIATE gc_stmt BULK COLLECT INTO ln_x1; ln_dist_x1:= ln_x1 MULTISET UNION DISTINCT ln_x1; End;
I need ln_dist_x1 to have distinct records from table.
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May 27, 2013
i have a table with a clob column and i have 150 records i want retrieve distinct values from the clob using distinct operator on clob will not work
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Jun 11, 2013
I have a table like below:
tableA
aid des
1 concrete
2 wood
3 straw
4 plastic
5 fiber glass
6 other
tableB
bid material
01 1
02 2
03 3
01 2
01 2
02 3
01 5
The result I need when updating another table with this info is:TableC
edw_id bid Requirement
021 1 concrete, wood, fiber glass
032
025
123
521
I do not want :
concrete, concrete, concrete, wood, wood, fiber glass
SO far I am using the following but since I am dealing with hundreds of column that has the same material, when using listagg() from oracle 11.2g, they column width is too wide to fit into the required column.
update eris_data_work e set E.flex37 =
(select
LISTAGG(CM.des, ',') WITHIN GROUP (ORDER BY CM.des) AS casing_material
from CODE_CASING_MATERIAL CM, TBLCASING CA
where CM.code=CA.MATERIAL and CA.well_id=E.owner_oid AND CM.DES IS NOT NULL
GROUP BY CA.well_id)
where E.source='WWIS_ON'
I have even used the regexp_count() to try to eliminate duplicates however I have had no success so far
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Jun 17, 2008
I have a table1:
userid, name, town.
Now i want to do a self join like:
select a.name, b.name, a.town
from table1 a
inner join table1 b
on a.town = b.town
where a.first_name <> b.first_name AND
a.last_name <> b.last_name
i added the where clause to limit duplicates i would get but i still get duplicates eg. A B london, B A london etc.
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Feb 14, 2012
I have to load 50 Million records in a table. I also need to ensure that no duplicate records enter. Business demand is that It may send 2 Million records today, 1 Million records tomorrow, 3 million records on the next day and so on...
I have loaded 6 Million records into the table, but onwards speed of loading records (with duplicate check) is decreasing.
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Jul 19, 2010
I have need, where I need to pick-up the one of the records out of 2, which have all the fields same but one key column? how should I do it?
sample data:
IDnamecreation dateupdate date
121233ATR7/19/2010 15:307/19/2010 15:30
1213344MTR7/19/2010 15:307/19/2010 15:30
For most of the cases, i am picking latest data using update date, but here where dates are same, I am stuck.
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Sep 19, 2013
db and dev 10g rel2 ,suppose that i have a table with a lot of duplicate rows ,what i need is to delete the duplicates and retain one row of these duplicates . likecolumn -- with those values...how to delete two (hi's) and retain the third , ?it is all applied to all the duplicate values in the column.
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Mar 24, 2011
remove duplicates from my collection(table type).Or an alternate solution for my issue is get clean data into my collection which i am not able to get to either.
Object creation
create table testingtype_table(ordernumber number,org_id number , company_name varchar2(10))
insert into testingtype_table values (1124,2424,'cbaaa');
insert into testingtype_table values (1124,2424,'cbaaa');
create or replace type testingtype_obj as object (ordernumber number,org_id number , company_name varchar2(10));
create or replace type testingtype_tab as table of testingtype_obj;
Code Block
declare
l_testingtype_tab testingtype_tab := testingtype_tab();
begin
select distinct testingtype_obj(ordernumber
,org_id
,company_name)
bulk collect into l_testingtype_tab
from testingtype_table;
end;
If only i can get a way to bulk collect only distinct values into the table type that will just do great but when i try the above (with distinct highlighted in red) it throws an error
ORA-22950: cannot ORDER objects without MAP or ORDER method
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Oct 11, 2013
Removing duplicates from a string that contains years and "-".
Example: 1988-1997-2000-2013-1998-1965-1997-1899
I know this can be done in regular expressions but have no experience in this subject.
select REGEXP_REPLACE(.....) from dual;
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Aug 3, 2011
i have two tables
Quote:
Table has following data.
id indicator
---------------
1 A
2 A
3 A
Quote:
Table2 has
id indicator
---------------
1 X
1 X
2 X
3 X
I would like to have following output ( Am running query on Toad)
t1_id t1_indicator t2_id t2_indicator
---------------------------------------------
1 A 1 X
1 X
2 A 2 X
3 A 3 X
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Oct 9, 2013
I ran an Inner Join but it returned many, many duplicates. One Answer from a different thread:Because you may be having improper Join condition what has a One to many or a Many to many relationship between the tables. We do not have the data, and hence cannot comment over it. What do I look for to identify an improper join?
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Nov 8, 2012
I want to remove duplicates from a column MAIN_TABLE based on TLEVEL Column:
create table UNIQ_TEMP
( TLEVEL NUMBER(10,0),
TABLE_NAME VARCHAR2(30),
MAIN_TABLE VARCHAR2(30)
);
[code]....
My Requirement is:
MAIN_TABLE= MARKETING_OPTIN
EXISTS IN MAX(TLEVEL)
REMOVE DUPLICATE MARKETING_OPTIN FROM OTHER LEVELS
This should apply to all the values in column MAIN_TABLE
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Feb 12, 2007
I'd like to achieve the following (and YES, I do know that this is not multi-user safe, but that's not the point here):
Before inserting a record, the trigger shall check if there's already a duplicate one. Duplicate means in this case when there is an intersection of the time frame, defined by two numeric timestamps. That's also the cause why I cannot use a simple UNIQUE constraint here (in my opinion).
Okay, that already works (see code below). But now I need colliding records to be written to a temporary table so that those records can be returned and presented to the user for selection.
create or replace
TRIGGER TRIGGER1
BEFORE INSERT ON FLIGHT_TABLE
FOR EACH ROW
BEGIN
FOR fs_entry IN (SELECT * FROM FLIGHT_TABLE)
LOOP
[Code] .........
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Mar 29, 2010
I have a table like this basic example:
ID Product Color Time-In
1 Apple Green May
2 Apple Red April
3 Pear Green May
4 Pear Green April
5 Plum Blue June
In SQL I want to return all 4 fields of the records except those records where Product and Color are identical - in that case it should return the latest (by name of month - preferred) or just the first it finds
So I should get these
1 Apple Green May
2 Apple Red April
3 Pear Green May
5 Plum Blue June
If I do a select distinct then I will only get those fields I test on (product and color), not the rest.
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Mar 30, 2010
I am trying to delete duplicates from table without using rowid.
here is data:-
create table test(col1 number(3),col2 varchar2(20));
insert into test values(100,'rocky');
insert into test values(100,'rocky');
[Code]....
I know i am perfoming dml on view. IT wont allow me to perform DML on view which contain columns with expression. IS there any way to delete duplicates without using rowid?
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May 12, 2011
I have a query like
SELECT country_name,
substr(SYS_CONNECT_BY_PATH(product_name,','),2) as PRODUCT_NAME,
substr(SYS_CONNECT_BY_PATH(SPEED_VALUE,','),2) as SPEED_VALUE,
substr(SYS_CONNECT_BY_PATH(i.SUPPLIERNAME_ACCESSPROTYPE,','),2) as SUPPLIERNAME_ACCESSPROTYPE
FROM (SELECT b.country_name,b.product_name,b.speed_value,(supplier_name|| supplier_product || access_product_type)as
[code].......
In the result , I am getting repeated values for product_name and speed value,something like 'ALL Products,All Products,All Products'in the product_name column and '128Kbps,128Kbps'in Speed_vale.i am not able to remove the repeated values here.
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May 31, 2012
I am trying to remove duplicates from a table with over 10million records. Below query is working fine but it doesnt contain any COMMIT interval. I have to commit after every 20k or 30k records deletion for which IF loop is necessary.
Query:
delete from
customer
where rowid in
(select rowid from
(select
rowid,
row_number()
over
(partition by custnbr order by custnbr) dup
from customer)
where dup > 1);
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May 28, 2013
I have created a table and i have a column consisting of 1000 records (but where i have duplicates). And now i want to create a primary key for the column.
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Oct 8, 2010
I have to write a file using the UTL_FILE that needs to look like the one below. I am getting the righ results but I am getting duplicates, If I have more than one records retrieve in the Invoice_data_cur cursor(for the same pidm) I got the right results, but I got duplicate data, in another words if I retrieve 3 records from the Invoice_ data_cur, I got the same record write to the file 3 times, but the right results. If I only retrieve 1 record in Invoice_ data_ cur , I only get the results of the in invoice_detail_charges_cur I don't get the results of the invoice_ detail_ payments_ cur:
H xxxxxxxxxxxx
I 00399999 10/02/201000000000005000000000000500Jane Smith
D 00366899 Current charges Fall 201010/02/2010Study Abroad Fee - Semester 0000000001200
D 00366899Current charges Fall 201010/02/2010France School Abroad 0000000011200
[code]....
I am getting data in all the cursors..
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May 27, 2008
I have this query that returns results that contain duplicates(somewhat). I only want either the FIRST or LAST (either one is fine). Here is the query:
select unique PLLA.attribute4, PLA.item_description from po_lines_all PLA, po_line_locations_all PLLA
where PLLA.po_line_id = PLA.po_line_id
and PLLA.attribute4 is not null
So my output is something like this:
RCE12 This is an item for AUL1
RCE13 This is an item for PWEILL
RCE14 This is an item for AUL1
I just want either the RCE12 or RCE14 record and not both since they both have the same description.
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Jun 6, 2013
I've got a slowly changing dimension table for products with some duplicate attributes -
UNIQUE_ID | DATE_FROM | DATE_TO | PRODUCT_ID | ATTRIBUTE_1 | ATTRIBUTE_2
1 01-JAN-13 02-JAN-13 423 MONKEY 5
2 03-JAN-13 04-JAN-13 423 MONKEY 5
3 05-JAN-13 08-JAN-13 423 MONKEY 4
4 09-JAN-13 10-JAN-13 423 SUPERMONKEY 4
5 01-JAN-13 08-JAN-13 378 BANANA 2
6 09-JAN-13 10-JAN-13 378 BANANA 3
The natural key should be PRODUCT_ID, ATTRIBUTE_1 and ATTRIBUTE_2. The table should therefore be recreated as follows:
UNIQUE_ID | DATE_FROM | DATE_TO | PRODUCT_ID | ATTRIBUTE_1 | ATTRIBUTE_2
1 01-JAN-13 04-JAN-13 423 MONKEY 5
2 05-JAN-13 08-JAN-13 423 MONKEY 4
3 09-JAN-13 10-JAN-13 423 SUPERMONKEY 4
4 01-JAN-13 08-JAN-13 378 BANANA 2
5 09-JAN-13 10-JAN-13 378 BANANA 3
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Apr 11, 2013
I have a view that is displaying records that are almost duplicates with the exception on one column.
Distric name id status logtime
------- --------- ---- ------ ---------------
ATLANTA John 007 A 4/5/2011 8:20
ATLANTA John 007 B 4/5/2011 8:20
ATLANTA John 007 D 10/5/2012 8:20
JERSY C. Eric 111 C 8/1/2012 4:45
PLANO Jake 522 A 1/2/2012 7:22
DENVER Steve 222 C 11/24/2012 9:00
DENVER Steve 222 D 11/24/2012 9:00
I have a situation where I need to only display one status per name at a specific time.I would like to return the following:
Distric name id status logtime
------- --------- ---- ------ ---------------
ATLANTA John 007 A 4/5/2011 8:20
ATLANTA John 007 D 10/5/2012 8:20
JERSY C. Eric 111 C 8/1/2012 4:45
PLANO Jake 522 A 1/2/2012 7:22
DENVER Steve 222 C 11/24/2012 9:00
So I decided to include a rank for the different statuses to identify the highest rank status and eliminate the lowest rank status records I don't want.
Select distric,name,id,status,
case status
when 'A' then 1
when 'B' then 2
when 'C' then 3
else 4
end statusrank,
logtime
from tst;
[code]...
I would like to return the record with the highest statusrank when they duplicates with the exception of the status column.Is there a built in function I can use for this ? The statusrank can be returned in query. My final return would be:
Distric name id status statusrank logtime
------- --------- ---- ------ ---------- ---------------
ATLANTA John 007 A 1 4/5/2011 8:20
ATLANTA John 007 D 4 10/5/2012 8:20
JERSY C. Eric 111 C 3 8/1/2012 4:45
PLANO Jake 522 A 1 1/2/2012 7:22
DENVER Steve 222 C 3 11/24/2012 9:00
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Aug 16, 2012
I have data some thing like this.
NO NAME LOC SAL
------------------------------------------------------------------
1 A HYD 100
2 B BGL 200
1 A HYD 200
1 A HYD 150
I want to delete duplicate records (group by no,name,loc) but only max(qty) record should be retained. So I need output like this.
NO NAME LOC SAL
------------------------------------------------------------------
1 A HYD 200
2 B BGL 200
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May 11, 2011
In MS Windows, if I copy a file and paste it into the same folder, I get a copy with the text 'Copy of' in front of the file name. If I paste it again, I get another copy with a different version number.
E.g.
sqlnet.log
Copy of sqlnet.log
Copy (1) of sqlnet.log
Copy (2) of sqlnet.log
I was wondering if I could copy existing rows into a table and do the same thing?
So, for example if I had this table:
create table tst_srch (srch_is varchar(100), user_name varchar(100), srch_name varchar(100));
insert into tst_srch values (1,'USER1','SRCHA');
insert into tst_srch values (2,'USER1','SRCHB');
insert into tst_srch values (3,'USER1','SRCHC');
insert into tst_srch values (4,'USER1','SRCHD');
insert into tst_srch values (5,'USER2','SRCHC');
insert into tst_srch values (6,'USER2','SRCHD');
insert into tst_srch values (7,'USER2','SRCHD_1');
Could I write a procedure like copy_searches('USER1','USER2') that would copy all USER1's searches to USER2 - including renaming any duplicates.
So it would create these new rows:
8,USER2,SRCHA
9,USER2,SRCHB
10,USER2,SRCHC_1
11,USER2,SRCHD_2
I've looked at various insert statements, merge and match statements and exception handling in procedures .
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Mar 25, 2011
When I am printing a report in Delimited report format using the default delimiter "Tab", the heading lables is getting printed for all rows( which is fine ) and extra rows of heading labels is getting printed.
Ex:
If I have a heading labels Deptno, Dname and Loc and related data which I print in delimited format, the output will be as follows:
Deptno Dname Loc 10 Accounting NewYork
Deptno Dname Loc 20 Research Dallas
Deptno Dname Loc 30 Sales Chicago
Deptno Dname Loc 40 Operations Boston
Deptno Dname Loc Deptno Dname Loc
Other report formats are working fine.
The same report in different application server environment is working fine.
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Jul 24, 2013
I am trying the new Oracle 12c and its feature to create columns with the keyword IDENTITY. I create a table CREATE TABLE xt (a NUMBER GENERATED by default AS IDENTITY PRIMARY KEY, b VARCHAR2(10));
And populate it, sometimes specifying the value for a and sometimes relying on the system to generate the value:
INSERT INTO xt (b) values ('a');INSERT INTO xt (b, a) values ('b', default);INSERT INTO xt (b, a) values ('c', 3);INSERT INTO xt (b) values ('d');INSERT INTO xt (b) values ('e');
The problem is that the fourth INSERT fails because the system tries to use the value 3 which is already taken. The fifth statement gets the value 4.
And the table now contains: A B - -1 a 2 b 3 c 4 e Is there something I am missing? I understood that by specifying BY DEFAULT, I would be allowed to sometimes specify values on my own without them interfering with the generated values. I now that the same thing works correctly in MySQL (where I would get five rows from 1 to 5 with the same INSERT statements) /nikos
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Oct 20, 2012
These are the tables I'm working with:
SQL> desc custinfo;
Name Null? Type
----------------------------------------- -------- ----------------------------
CUSTID VARCHAR2(4)
CUSTNAME VARCHAR2(18)
CUSTADR VARCHAR2(12)
CUSTCITY VARCHAR2(10)
CUSTSTATE CHAR(2)
CUSTZIP VARCHAR2(5)
CAPACITY NUMBER(3)
HOUSECODE VARCHAR2(2)
[code]...
I don't understand why the custid is the same for each customer, and why it's selecting every customer and not just those with more than 150 gallons ordered.
For this one use the oil tables that you set up and use a subquery. Select the minimum average fall use from the house table. Then show all customers whose number of gallons delivered times two is greater than the minimum.
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