Need To Remove All Duplicate Records.
Feb 12, 2008
Hi
I have a data in one table like below.
EDITION PRODUCT INSERTDATE
---------- ------------ ----------------------
CNE TN-Town News 12/19/2007 12:00:00 AM
TN TN-Town News 12/19/2007 12:00:00 AM
What i have to do is if there are multiple records for one product in any day, then i need to remove all those records. In this case i am getting two records for the PRODUCT 'TN-Town News' and for INSERTDATE = 12/19/2007 . So i need to remove these two records from the table.
How to do that?. Can anybody help me?
Thanks
Venkat
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Apr 16, 2007
Is there a way to check if duplicates exists in the incoming textfiles????
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Dec 3, 2010
I have a table that "Geography" that has the following columns: city, state, zip
There are tons of duplicate cities in this table. I ran this query and it shows me the number of occurrences of each city. I want to delete all the duplicates except for 1. I don't want to do this manually as there are a lot of records.
What would the SQL look like to delete the duplicate records but keep at least one?
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Jul 28, 2015
I have a requirement where i want to delete the records based on the Date column. I have table which contain the columns like machinename ,lasthardwarescandate
I want to delete the records based on the max(Lasthardwarescandate) i.e. latest one, column where the machine name is duplicate menace it repeats. So how would i remove the duplicate machine names based on the Lasthardwarescandate column(There are multiple entries for the Lasthardwarescandate so i want to fetch the latest date column).
Note: Duplication should be removed based on “Last Hardware Scan” date.
Only latest date should be considered from multiple records for the same system. "
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Apr 1, 2004
HI All,
I want to remove duplicate records from my table based on nic number. I try to put primray key constraint. But there are many many duplicates so cannot do it can I have a query to remove duplicates..
Thnx
;)
Shani
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May 8, 2008
I am a newb at ms sql and was hoping someone could help me
eliminate duplicate PRODUCT.PRODUCT from this statement. I have tried using DISTINCT with the same results.The ProductImage table is causing this because
the duplicates are from the PRODUCT.PRODUCT that have more than 1 image.
If anyone could rewrite this statement so I can learn from this, it would
be most appreciated!
Thank you for your time
<asp:SqlDataSource ID="SqlDataSource3" runat="server"ConnectionString="<%$ ConnectionStrings:LocalSqlServer %>"SelectCommand="SELECT Product.Product.productid,Product.Product.catid,Product.Product.name,Product.Product.smalltext,Product.Product.longtext,Product.Product.price,Product.ProductSpecial.saleprice, Product.ProductSpecial.feature,Product.ProductImage.imgId, Product.ProductImage.imgUrlFROM Product.ProductINNER JOIN Product.ProductSpecialON Product.ProductSpecial.productid = Product.Product.productidINNER JOIN Product.ProductImageON Product.Product.imgid = Product.ProductImage.imgId"></asp:SqlDataSource>
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Jul 27, 2000
i'm a newbie to sql , anyone can give me suggestions on how to
remove duplicate records in a table, a table also has primary key,
thanks
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Dec 16, 2004
I have a query that for one reason or another produces duplicate information in the result set. I have tried using DISTINCT and GROUP BY to remove the duplicates but because of the nature of the data I cannot get this to work, here is an example fo the data I am working with
ID Name Add1 Add2
1 Matt 16 Nowhere St Glasgow
1 Matt 16 Nowhere St Glasgow, Scotland
2 Jim 23 Blue St G65 TX
3 Bill 45 Red St
3 Bill 45 red St London
The problem is that a user can have one or more addresses!! I would like to be able to remove the duplicates by keeping the first duplicate ID that appears and getting rid of the second one. Any ideas?
Cheers
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Mar 7, 2014
Below is a raw data with SQL script to create the temp table. This table is a scale down version of what I am working with. I am taking the addresses from several different sources and putting them in a temp table. Now, I need to remove the duplicate addresses for each ID. Duplicate addresses are okay for different IDs.
Raw Data
IDAddr1 CityStateZip
26205 N Main STChicagoIL52147
26205 N Main STChicagoIL52147
2685 Park AveChicagoIL52147
3535 Main StAustinTX78715
35976 Ponco StDallasTX79757
359587 MopacAustinTX78715
4558741 Len LnDaytonFL74717
455518 Spring DrDaytonFL74717
45585 Park AveChicagoIL52147
Desired Result
IDAddr1 CityStateZip
26205 N Main STChicagoIL52147
2685 Park AveChicagoIL52147
3535 Main StAustinTX78715
35976 Ponco StDallasTX79757
359587 MopacAustinTX78715
4558741 Len LnDaytonFL74717
455518 Spring DrDaytonFL74717
45585 Park AveChicagoIL52147
CREATE TABLE #tmpTable(
[ID] Int,
[Addr1] [varchar](15) NULL,
[City] [varchar](9) NULL,
[State] [varchar](2) NULL,
[Code] .....
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Jul 23, 2005
Hi everyone.How can I get the unique row from a table which contains multiple rowsthat have exactly the same values.example:create table test (c1 as smallint,c2 as smallint,c3 as smallint )insert into test values (1,2,3)insert into test values (1,2,3)i want to remove whichever of the rows but I want to retain a singlerow.TIADiego
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Apr 10, 2006
I've got the following table data:116525.99116520.14129965.03129960.12129967.00And I need to write a query to return only rows 2 and 4, since theremaining rows have duplicate IDs. I've tried the Group By, but amhaving no luck.Thanks!
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Sep 5, 2007
I have a table containing over 100,000 email addresses. This email table gets duplicates in it, and our customers don't want a second (or third or fourth) copy of our news letter. To prevent this, we run the following SQL to kill the duplicates:
Code Snippet
DELETE FROM _email WHERE _email.eid IN
(
SELECT tbl1.eid FROM _email AS tbl1 WHERE Exists
(
SELECT emailaddress, Count(eid) FROM _email WHERE _email.emailaddress = tbl1.emailaddress GROUP BY _email.emailaddress HAVING Count(_email.eid) > 1
)
)
AND _email.eid NOT IN
(
SELECT Min(eid) FROM _email AS tbl1 WHERE Exists
(
SELECT emailaddress, Count(eid) FROM _email WHERE _email.emailaddress = tbl1.emailaddress GROUP BY _email.emailaddress HAVING Count(_email.eid) > 1
)
GROUP BY emailaddress
);
This query takes about 2hrs to run which is really hurting our server preformance. Is there any way to do this faster?
I am running SQL Server 2000
Thanks in advance
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May 22, 2007
Hi All ,
I have a CSV file which contains some duplicate record and i have to load this file in SQL server database using SSIS package .
What i have to do is read the file and if the same record entry is occur more than 10 times for a particular unique combination ( like ID , Date , Time ) then i need to take only one record for that occurance.
Plesae suggest , Help ,
Regards,
Ashish
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Aug 16, 2005
I am working SQL Server 2005 and One Table Which contain only one column without primary keyNow I want to remove all duplicate value from that table with only single query
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Mar 20, 2007
I have a table with one column, and i want to remove those records from the table which are duplicate i meant if i have a records rakesh in table two time then one records should be remove...
my tables is like that
Names
------------
Rakesh
Rakesh
Rakesh Kumar Sharma
Rakesh Kumar Sharma
Baburaj
Raghu
Raghu
and Output of query should be like that
Names
-----------
Rakesh
Rakesh Kumar Sharma
Baburaj
Raghu
Thanks in advance
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May 1, 2014
I found some duplicate data as I was going thru the logic of a data pump. The entire row is not duplicated however.I would like to delete only the one row.
This is a sample of the data:
DECLARE @SomeData TABLE
(
FirstName varchar(25)
, MiddleName varchar(25)
, LastName varchar(25)
, StreetAddress varchar(25)
, Suite varchar(25)
, City varchar(25)
, [State] varchar(25)
, PostalCode varchar(10)
[code]...
As you can see, Joe Smith has two rows, but only one of the rows is complete. I would like to delete only the row that has a NULL value in the phone and area code for Joe Smith. There are a few thousand rows that are like this. They have duplicates all but the area code and phone number.I am used to using a CTE to remove duplicates, but I am a little lost on this one. The things that I have tried, have not worked exactly as I planned.
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Jun 5, 2014
Whenever I try to join multiple Tables it will appear in duplicate.
Example:
ID SURNAME NAME SEX DOB
1YAHAYISAMALE05.02.19911NIGERIAKADUNA12 RIMI ROAD
1YAHAYISAMALE05.02.19912USALONDON12 NEW JESSY
1YAHAYISAMALE05.02.19913BENINTOGO12 KIMOI ROAD
1YAHAYISAMALE05.02.19914KENYAYANE8 MUTU AVENUE
1YAHAYISAMALE05.02.19915BRAZILLAZZIO4 ZINO AVENUE
2IBRAHIMJAMILAFEMALE04.05.20011NIGERIAKADUNA12 RIMI ROAD
[Code] ....
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Mar 2, 2006
I have a database being populated by hits to a program on a server.The problem is each client connection may require a few hits in a 1-2second time frame. This is resulting in multiple database entries -all exactly the same, except the event_id field, which isauto-numbered.I need a way to query the record w/out duplicates. That is, anyrecords exactly the same except event_id should only return one record.Is this possible??Thank you,Barry
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Jan 10, 2007
Hi guys
I have been using SQL server 2005. I have got a huge table with about 1 million rows.
Problem is this table has got duplicate rows in lot of places. I need to remove the these duplicates. Is there an easy way to do that??
Is there a query in SQL to remove duplicate rows???
thanks
Mita
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Oct 18, 2001
There's some SQL below (T-SQL) & I'm wanting to have this result set
grouped by Venue_ID in order to remove rows where there are duplicate values contained in just one column.
The columns BCOM_ID contain unique values, but Venue_ID can have duplicate
values. I only want to get rows for one instance of the Venue_ID (per
BCOM_ID) - doesn't matter which instance but basically, no duplicates.
Oh yes, one of the columns is a Bit column.
Any ideas would be welcome & appreciated!
Many thanks,
Darren
darren@darrenbrook.fsnet.co.uk
SQL:-
SELECT Booking_Header.BH_ID,
Booking_Header.Booking_Header_Description,
Booking_Header.BStat_ID, Booking_Header.BT_ID,
Booking_Header.Tagged, Booking_Header.Status_Timestamp,
Booking_Header.Start_Date, Booking_Header.Days_Qty,
Proposal.PPL_ID, Proposal.PPL_Status,
Booking_Component.BCOM_ID,
Booking_Component.Component_Description,
Booking_Component.Venue_ID, Venue.Venue_Code,
Venue.Description, Address.Address_ID, Address.Town,
Booking_Status.BStat_Description,
Booking_Type.Type_Description
FROM dbo.Booking_Header INNER JOIN
dbo.Proposal ON
dbo.Booking_Header.BH_ID = dbo.Proposal.BH_ID INNER JOIN
dbo.Booking_Component ON
dbo.Proposal.PPL_ID = dbo.Booking_Component.PPL_ID INNER
JOIN
dbo.Venue ON
dbo.Booking_Component.Venue_ID = dbo.Venue.VE_ID INNER JOIN
dbo.Address ON
dbo.Venue.VE_ID = dbo.Address.VE_ID INNER JOIN
dbo.Booking_Status ON
dbo.Booking_Header.BStat_ID = dbo.Booking_Status.BStat_ID INNER
JOIN
dbo.Booking_Type ON
dbo.Booking_Header.BT_ID = dbo.Booking_Type.BT_ID
WHERE (dbo.Proposal.PPL_Status = 1) AND
(dbo.Booking_Header.BH_ID = 10)
Thanks,
Darren
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Jan 26, 2008
I have 4 tables (SqlServer2000/2005). In the select query, I have FULL JOINED all the four tables A,B,C,D as I want all the data. The result is as sorted by DDATE desc:-
AID BID BNAME DDATE DAUTHOR
1 1 abcxyz 2008-01-20 23:42:21.610 c@d.com
1 1 abcxyz 2008-01-20 23:41:52.970 a@b.com
1 2 xyzabc 2008-01-21 00:17:14.360 c@d.com
1 2 xyzabc 2008-01-20 23:43:17.110 a@b.com
1 2 xyzabc 2008-01-20 23:42:43.937 a@b.com
1 2 xyzabc NULL NULL
2 3 pqrlmn NULL NULL
2 4 cdefgh NULL NULL
Now, I want unique rows from the above result set like :-
AID BID BNAME DDATE DAUTHOR
1 1 abcxyz 2008-01-20 23:42:21.610 c@d.com
1 2 xyzabc 2008-01-21 00:17:14.360 c@d.com
2 3 pqrlmn NULL NULL
2 4 cdefgh NULL NULL
I want to remove the duplicate rows and show only the unique rows but contains all the data from the first table A. I have to bind this result set to a nested GridView.
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Dec 21, 2011
I have a dataset in my report that pulls 10 fields. One of the tablixes on report should display only 8 of the 10 fields and this is causing the duplicate records to show up on the tablix.I tried hide duplicates option for the entire details row and have set the scope to "Details". It did not work. I am getting the data from a stored procedure and cannot do much on that.
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Nov 30, 2007
I have a results table that was created from many different sources in SSIS. I have done calculations and created derived columns in it. I am trying to figure out if there is a way to remove duplicate rows from this table without first writing it to a temp sql table and then parsing through it to remove them.
each row has a like key in a column - I would like to remove like rows keeping specific columns in the resulting row based on the data in this key field.
Ideas?
Thanks,
Ad.
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Oct 20, 2001
I have SQL Server Standart Edition and have a database, MDF file size is 650 MB, log file size is 1,23 GB
I tried to shrink the log file but i didnt shrink, I wanr to remove all records from the log file
How I remove records from the log file I want to shrink this file to 1 or 2 MB
Please help me
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Nov 18, 2006
Guys,
Is there some Transformation or other method to remove outlying records based on an attribute during a Data Flow task?
I have a list of Organizations complete with a list of Products they have bought. I am going to do some data mining / profiling off of this data but first I need to get rid of the top 25% and bottom 25% quantity records by Product. I've looked at Percentage / Row Sampling but they are too simple.
How would this be done in SSIS?
Thanx!
Sincerely,
J'son
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Jun 23, 2005
We imported approximately 2.9 million records from our mainframe server
into our SQL Server but have run into a problem. The data in a
few of the fields contains both leading and trailing spaces. An
example of the data would be like this, using periods to represent
spaces:
What we have:
..1A02938.....
What we need:
1A02938 (no spaces)
Is there some sort of algorithm I can run on the data to remove
those spaces? The problem is coming up when trying to perform a
SELECT query. We try something like:
SELECT * FROM PCPIPT0 WHERE PANO20 = "1A02938" but we get zero
results because of the spaces in the database. The datatype of
the filed is char(20) because we need some flexibility on the size of
the data stored.
Any assistance would be greatly appreciated.
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Mar 5, 2008
Hi,
I currently have one table that lists all projects and tasks within the organisation. One of the table fields is the task status, open or closed. I would like to be able to have a process by which the tasks that are completed are removed from the table and placed into another (archive) table. The same records then being removed from the original table. which then only contains the incomplete tasks. This process could be run at given times during the day or at the point when the status of a task is changed from open to closed, either way each time the process is run it would need to append the rows removed into the archive table. Anyone any ideas on the best way to do this?.
Thanks
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Jan 18, 2000
Is there a way to find duplicate records in a table using code. We have about 500,000 records in this table.
Thanks.
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Jan 27, 2005
Hi All,
How to check for the duplicate records in the table? Thanks.
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Jun 12, 2002
Yes, I know this subject has been exhausted, but I need help in locating the discussion which took place a few months ago.
Sharon relayed to the group a piece of software (expensive) which would help in my particular situation. I grabbed a demo and have gotten the approval for purchase. Unfortunately, I don't have the thread with me at work.
The problem:
Number Fname Lname Age ID
123 John Franklin 43 1
123 Jane Franklin 40 2
123 Jeff Franklin 12 3
124 Jean Simmons 39 4
125 Gary Bender 37 5
126 Fred Johnson 29 6
126 Fred Johnson 39 7
127 Gene Simmons 47 8
The idea would be to get only unique records from the Number column. I don't care about which information I grab from the other columns, but I must have those fields included.
If my resultant result set looked as follows, that would be fine. Or any other way, as long as all of the fields had information and there were only unique values in the Number field.
Number Fname Lname Age ID
123 Jeff Franklin 12 3
124 Jean Simmons 39 4
125 Gary Bender 37 5
126 Fred Johnson 39 7
127 Gene Simmons 47 8
If anyone remembers this discussion, mainly the date, I would really appreciate it.
Thanks
Gregory Taylor
MIS Director
Timeshares By Owner
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Jul 13, 2007
Hi,
I have a field called user_no
i want to find out which ones are duplicates in the user_no field
the data in user_no is like this
111-222-345-666
so there are 10,000 records in the table and i want to find out the duplicate records in them
can someone tell me how my query will be
todd
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Feb 17, 2008
I have two tables, one contains all work orders, the second contains records on work orders that are linked to customoer orders. I'm trying to create a query that will return specific fields from the table that contains orders in the linked order table, and only the work orders in the all order table that (work_order) do not exist in the linked order table (demand_supply_link). I have tried several queries and cannot get the results I desire. Here is the query I am currently trying.
SELECT DISTINCT WORK_ORDER.DESIRED_WANT_DATE as 'Want Date', DEMAND_SUPPLY_LINK.SUPPLY_BASE_ID as 'WO Id',
WORK_ORDER.DESIRED_QTY as 'End Qty', DEMAND_SUPPLY_LINK.SUPPLY_PART_ID as 'Part Id', CUST_ORDER_LINE.CUSTOMER_PART_ID as 'Cust Part',
OPERATION.RESOURCE_ID as Resource, PART.DESCRIPTION as Description, CUSTOMER.NAME as Name
FROM ((((DEMAND_SUPPLY_LINK INNER JOIN CUST_ORDER_LINE ON DEMAND_SUPPLY_LINK.DEMAND_BASE_ID = CUST_ORDER_LINE.CUST_ORDER_ID)
INNER JOIN WORK_ORDER ON DEMAND_SUPPLY_LINK.SUPPLY_BASE_ID = WORK_ORDER.BASE_ID)
INNER JOIN OPERATION ON WORK_ORDER.BASE_ID = OPERATION.WORKORDER_BASE_ID) INNER JOIN PART ON WORK_ORDER.PART_ID = PART.ID)
INNER JOIN (CUSTOMER INNER JOIN CUSTOMER_ORDER ON CUSTOMER.ID = CUSTOMER_ORDER.CUSTOMER_ID) ON CUST_ORDER_LINE.CUST_ORDER_ID = CUSTOMER_ORDER.ID
WHERE WORK_ORDER.DESIRED_WANT_DATE Is Not Null AND OPERATION.RESOURCE_ID in ('ASSY','FAB 1','PLAY TRK')
AND WORK_ORDER.STATUS='R'
UNION
SELECT distinct work_order.desired_want_date as 'Want Date', work_order.BASE_id as 'WO Id',
work_order.desired_qty as 'End Qty', work_order.part_id as 'Part Id', operation.resource_id as Resource,
part.description as Description
FROM WORK_ORDER INNER JOIN PART ON PART_ID=WORK_ORDER.PART_ID INNER JOIN OPERATION ON WORK_ORDER.BASE_ID=OPERATION.WORKORDER_BASE_ID
WHERE WORK_ORDER.DESIRED_WANT_DATE IS NOT NULL AND OPERATION.RESOURCE_ID IN ('ASSY','FAB 1', 'PLAY TRK')
AND WORK_ORDER.STATUS='R'
This is the error I receive:
Server: Msg 205, Level 16, State 1, Line 1
All queries in an SQL statement containing a UNION operator must have an equal number of expressions in their target lists.
The all orders table (work_order) will not have the other fields to link to as there is no customer order linked to them.
Can anyone help. Thanks!
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Feb 9, 2004
Hi
Can anyone tell me how to stop a SQL query displaying duplicate records within a table
Thanks Alot
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