Delete Duplicate Rows With No Unique Columns
Apr 3, 2000I have 4 rows which are exactly the same. I want to delete one row but i do not have any unique identifing columns. How should i delete that row ?
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Delete Rows With Duplicate Column Data But Unique Row Data
May 25, 2000Hello,
This probably has been addressed before but I was unable to get the search to work properly on this site.
I am needing a script/way of deleting all rows from a DB with the exception of one record left for each row that has duplicate column data. Example :
Row 1
Field1 = 12345 Field2 =xxxxx Field 3=yyyyy Field4=zzzzz etc.
Row 2
Field1 = 12345 Field2 =zzzzzz Field 3=xxxxxx Field4=yyyyyy etc.
Row3
Field1 = 12345 Field2 =20202 Field 3=11111 Field4=zzzzz etc.
Row 4
Field1 = 54321 Field2 =xxxxx Field 3=yyyyy Field4=zzzzz etc.
Etc. Etc.
I want to be able to find the duplicates for Field1 and then delete all but 1 of those rows.( I don't care which one I keep just so only one is left.) The data in the other fields may or may not be unique.
I know how to find the duplicates it's just the deleting part I am having problems with. Any help would be much appreciated. Thanks,
Kerry
Duplicate Key But Unique Rows.
Jan 25, 2000I have a large table that consists of the columns zip, state, city, county. The primary key "zip" has duplicates but the rows are unique.
How do I filter out only the duplicate zips.
Randy Garland
Unique Index Returns Duplicate Rows
Oct 25, 2004We are running the following query, which has a unique index on Table_2 (col1 and sys1), and Column col1 from Table_1 is unique.
select top 100 s.*, x.col1
from Table_1 s
left outer join Table_2 x
on x.col1 = s.col1 and x.sys1 = 'SYSTEM0'
Unfortunately this query returns duplicate rows. And every time the result is different
But once we dbcc dbreindex the unique index on Table_2, the result will not have any dups.
Any ideas?
Thanks
Steve
Transact SQL :: How To Compare Duplicate Rows Within A Unique Process
Nov 9, 2015We write to a log file each time a job runs. We give each job a unique batchid. I want to compare the run times of each step/record between two batch ids: '20150101888' and '20150101777'. Column Mins in the number of minutes each step ran. I am having trouble comparing the rows that have generic process and stepname – Trans Switch in this example. A new process within a batchid starts with a 'XX', 'Load'.
So I want to compare CA's Trans to CA's Tran Switch and ER's Trans Switch to ER's, etc. There can be multiple Trans Switch per process. There should be the same number between each batch, but no guarantees that something might change. Also, Trans Switch is not the record right after the new process (CA, ER) in production.
I have just made a very simplified example.
/**
Want to compare 20150101888 to 20150101777 and end up with this result set. Notice that the duplicate process/step within a process has the process (CA and ER in this example) and a sequential number added to it: 'CA Trans 1'. Need this to pull out the largest time differences.
Time difference, process, step, mins1, mins2, batchid1, batchid2
-6, CA, Load, 17, 23, 20150101888, 20150101777
0, CA Trans 1, Switch, 8, 8, 20150101888, 20150101777
-6, CA Trans 2, Switch, 9, 15, 20150101888, 20150101777
-4, ER, Load, 7, 11, 20150101888, 20150101777
-4, ER Trans 1, Switch, 7, 11, 20150101888, 20150101777
**/
[Code] ....
Delete Duplicate Rows
Jun 25, 2000I have a table which looks as follow:
field1 field2 field3 field4 field5 ......
A B C A X ......
A B C B Y ......
A B C C Z ......
A B C A Y ......
. . . . . ......
I want to delete all the rows except one row. Anybody can help?
Thank you very much.
Delete Duplicate Rows Using T-SQL
Jan 20, 2000How do you delete duplicate rows in a table so only one row is left in the table, using T-SQL.
View 1 Replies View RelatedDELETE DUPLICATE ROWS
Mar 30, 1999CAN ANYBODY REPLY FOLLOWING QUESTIONS. I WANT TO DELETE DUPLICATE ROWS
IN MY TABLE WITHOUT USING TRANSACTION TABLE. AND ONE MORE QUESTION HOW
TO GET YESTERDAY DATE BY USING ISQL WINDOW.
THANKS
JK
Delete Duplicate Rows
Jan 13, 2005Suppose that we have the following rows in a MSSQL table :
1administrateur1NULLNULL
2administrateur2NULLNULL
1administrateur1NULLNULL
2administrateur2NULLNULL
How to remove duplicates (leave only the 2 first rows) ?
Delete Duplicate Rows
Oct 17, 2005Hi,
I have the following query to select duplicate rows from the table. How can i delete them with out using temp table.
select UserName, Title, Name, ColWidth, Sequence
from table1 (nolock))
Group by UserName, Title, Name, ColWidth, Sequence
Having count(*) >1
Any help would be greately appreciated.
Thanks
Delete Duplicate ROWS
Jun 18, 2008How to delete duplicate records from table ? Is there any query for that ?
I am using SQL 2005.
Delete Duplicate Rows
Jan 27, 2014declare @a1 table
(id int not null identity(1,1),
phone decimal(18,0),
adress nvarchar(100))
insert @a1
(phone,adress)
[Code] ....
id phone address
----------- --------------------------------------- ----------------------------------------------------------------------------------------------------
1 111 new york
2 111 new york
3 111 new york
4 222 maxico
5 222 mexico
select phone,count(phone) as say from @a1 group by phone having count(phone)>1
phone say
--------------------------------------- -----------
111 3
222 2
How can I remove duplicate phone. For example
after delete
select*from @a1
select*from @a1
id phone address
----------- --------------------------------------- ----------------------------------------------------------------------------------------------------
1 111 new york
4 222 maxico
I wrote this to show for example in my real table have 50000 rows and 1751 duplicate rows.
[URL] .....
How Do You Delete Duplicate Rows......
Jan 18, 2006How do you delete duplicate rows when there are constraints or like in professional terms as we say "Referential Integrity".
Mr.Madhivanan i hope you remember me. Because it is after all purpose that binds us all together...purpose...it is inevitable Mr.Madhivanan.
Update Rows To Resolve Issues About Duplicate Keys On Create Unique Index
May 7, 2008
Hi there ...here comes a tricky one.
I have a database table which needs to make the Index "ParentREF, UniqueName" unique - but this fails because duplicate keys are found. Thus I now need to cleanup these duplicate rows - but I cannot just delete the duplicates, because they might have rows in detail tables.
This means that all duplicate rows needs an update on the "UniqueName" value - but not the first (valid) one!
I can find those rows by
SELECT OID, UniqueName, ParentREF, CreatedUTC, ModifiedUTC FROM dbo.CmsContent AS table0
WHERE EXISTS (
SELECT OID, UniqueName, ParentREF FROM dbo.CmsContent AS table1
WHERE table0.ParentREF = table1.ParentREF
AND table0.UniqueName = table1.UniqueName
AND table0.OID != table1.OID
)
ORDER BY ParentREF, UniqueName, ModifiedUTC desc
...but I struggle to make the required SQL (SP?) to update the "invalid" rows.
Note: the "valid" row is the one with the newest ModifiedUTC value - this row must kept unchanged!
ATM the preferred (cause easiest) way is to rename the invalid rows with
UniqueName = OID
because if I use any other name I risk to create another double entry.
Thanks in advance to whoever can help me
How To Delete Duplicate Rows Retaining Only One Of Them From Every Set Of Duplicates.
Apr 10, 2008
I have a table employee_test having the sample data. The rows with EmployeeID=6 are duplicate rows. I want to delete the duplicates retaining one row for the employeeid=6.
Note :- I don't want to use a temporary table. I want to do this using a single query or at the most in a SP query batch. Please advise.
EMPLOYEEID
ENAME
SALARY
MANAGERID
1
Anee
1000
11
2
Rick
1200
12
3
JOHN
1100
13
4
ABC
1300
14
5
DEF
1400
15
6
DEF
1400
15
6
DEF
1400
15
Transact SQL :: Delete Duplicate Rows From Table?
Jul 21, 2015I have a table with more than 1000 records. The columns look like this
Import id | Reference | Date | Username | Filename
Some of the rows are duplicates except for the fact that they have different values for the first column alone (import id)
11111 test 21-07-2015 xxxxxx yyyyyy
22222 test 21-07-2015 xxxxxx yyyyyy
Is it possible to delete these kind of duplicate rows by ignoring the import id ?
Need A Stored Procedure To Delete Duplicate Rows
Oct 22, 2007hi every body
can any onehelp me in making a stored procedure to delete a duplicate rows in tables
thanks in advance
SQL Server 2008 :: Delete Duplicate Rows From ANY Table
Jul 31, 2015Is there is 'fairly' simple query to delete duplicate rows from ANY table ?
A script which removes duplicates from a table, when a table_name is supplied.
Select Unique Rows For All Columns
May 17, 2007Using DISTINCT with SELECT have effect only for one column.
But when is needed to select (or to count) queries for all rows for all columns in a table without duplicates, doesn't work.
Select DISTINCT a1,a2,a3,a4 From Y ---> results 167 rows
Select DISTINCT a4 From Y ---> " 85 rows
Any thoughts?
Jorge3921
Delete Duplicate Rows From Two Tables With Same Structure In Sql Server 2000
Aug 20, 2007 Hi
I want to delete the duplicate rows from two tables and get the resultant non-duplicate rows from both the tables into another table
Get Rows With Duplicate Values In Certain Columns
Jul 23, 2005Hi there,I would like to know how to get rows with duplicate values in certaincolumns. Let's say I have a table called "Songs" with the followingcolumns:artistalbumtitlegenretrackNow I would like to show the duplicate songs to the user. I considersongs that have the same artist and the same title to be the same song.Note: All columns do not have to be the same.How would I accomplish that with SQL in SQL Server?Thanks to everyone reading this. I hope somebody has an answer. I'vealready searched the whole newsgroups, but couldn't find the solution.
View 2 Replies View RelatedMS SQL Dealing With Duplicate Columns In Rows?
Aug 21, 2007Hello,Suppose I have the following table...name employeeId email--------------------------------------------Tom 12345 Join Bytes!Hary 54321Hary 54321 Join Bytes!I only want unique employeeIds return. If I use Distinct it will stillreturn all of the above as the email is different/missing. Is there away to query in SQL so that only distinct employeeId is returned? noduplicates.I wouuld like to say WHERE no blank fields are present to get theright row to return.Many thanksYas
View 6 Replies View RelatedSelecting The Rows Based Off Of Unique Columns
Mar 18, 2007Hi there, im still learning SQL so thanks in advance.I have a table with columns of customer's information, [customerID], [customerFirst], [customerLast], , [program] ... other columns ... There will be entries where there can be duplicate customerFirst and customerLast names. I would like to just return a single entry of the duplicate names and all associated row information. IE: [customerID], [customerFirst], [customerLast], [ email], [program] 01 Bill Smith bill.smith@hotmail.com ymca 02 Bill Smith bill.smith@hotmail.com Sports 03 jon doe jon.doe@hotmail.com AAA 04 jon doe jon.doe@hotmail.com Ebay 05 Paul Sprite paul.sprite@hotmail.com Rec Desired Returned result: 01 Bill Smith bill.smith@hotmail.com ymca 03 jon doe jon.doe@hotmail.com AAA
05 Paul Sprite paul.sprite@hotmail.com Rec So in my code i have this:dAdapter = new SqlDataAdapter("SELECT * FROM [Poc_" + suffix + "] WHERE (SELECT DISTINCT [CustomerLastName], [CustomerFirstName], [CustomerEmail] FROM [Poc_" + suffix + "])", cnStr); dAdapter.Fill(pocDS, "Data Set"); However this is throwing up an error when i build the app: An expression of non-boolean type specified in a context where a condition is expected, near ')'.
Description: An
unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the
error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException:
An expression of non-boolean type specified in a context where a
condition is expected, near ')'.
Source Error:
Line 52: //dAdapter = new SqlDataAdapter("SELECT DISTINCT * FROM [Poc_" + suffix + "] ORDER BY [CustomerLastName]", cnStr); Line 53: dAdapter = new SqlDataAdapter("SELECT * FROM [Poc_" + suffix + "] WHERE (SELECT DISTINCT [CustomerLastName], [CustomerFirstName], [CustomerEmail] FROM [Poc_" + suffix + "])", cnStr); Line 54: dAdapter.Fill(pocDS, "Data Set");Line 55: Line 56: //Dataset for name comparison 1: Can someone explain to me why this error is happening?2: Can soemone confirm that my intentions are correct with my code?3: If I'm completely off, can someone steer me in the right direction?Thanks alot!-Terry
SQL Server 2012 :: How To Delete Duplicate Rows Present In Parent Table
Oct 19, 2014I have a master table and i need to import the rows into the parent and child table.
Master table name is Flatfile_Inventory
Parent Table name is INVENTORY
Child Tables name are INVENTORY_AMOUNT,INVENTORY_DETAILS,INVENTORY_VEHICLE,
Error details will be goes to LOG_INVENTORY_ERROR
I have 4 duplicate rows in the Flatfile_Inventory which i have already inserted in the Parent and child table.
Again when i run the query using stored procedure,its tells that all the 4 rows are duplicate and will move to the Log_Inventory_Error.
I need is if i have the duplicate rows in the flatfile_Inventory when i start inserting into the parent and child table the already inserted row have the unique ID i must identify it and delete that row in the both parent and chlid table.And latest row must get inserted into the Parent and child table from Flatfile_Inventory.
-- ===============================================================================================
-- STORED PROCEDURE FOR FLATFILE_INVENTORY
-- ===============================================================================================
USE [IconicMarketing]
---=======================================SALES_CURSUR===========================================
--USE IconicMarketing
--GO
DECLARE
@FileType varchar(50) ,
@ACDealerID varchar(50) ,
[code].....
SQL 2012 :: How To Find Unique Rows Considering Only Specific Columns
Apr 18, 2014write a query which retrieves only unique rows excluding some columns.
IdStatusmanager Team Comments Proj number Date
19391New XUnassigned One 3732.0 16-Apr-14
19392Can YCustomer Two 3732.0 17-Apr-14
19393Can YCustomer Two 3732.0 17-Apr-14
19394Can YCustomer One 3732.0 18-Apr-14
19395New YCustomer One 3732.0 19-Apr-14
19396New YCustomer One 3732.0 21-Apr-14
19397New ZCustomer One 3732.0 20-Apr-14
In the above table project number and id shouldn't be considered and I should get the unique rows considering rest of columns and sorted based on date. Expected result is
IdStatusmanager Team Comments Proj number Date
19391New XUnassigned One 3732.0 16-Apr-14
19392Can YCustomer Two 3732.0 17-Apr-14
19394Can YCustomer One 3732.0 18-Apr-14
19395New YCustomer One 3732.0 19-Apr-14
19397New ZCustomer One 3732.0 20-Apr-14
19396New YCustomer One 3732.0 21-Apr-14
Elimenating Duplicate Keys With Unique Row.
Jan 25, 2000I have a large table that consists of the columns zip, state, city, county. The primary
key "zip" has duplicates but the rows are unique.
How do I filter out only the duplicate zips. So in effect I only have one row per unique key.
Randy Garland
if you just want a list of all rows with duplicate zipcodes then ...
SELECT * FROM TableName WHERE zip IN ( SELECT zip FROM TableName
GROUP BY zip HAVING COUNT(*)>1 )
Duncan
Duncan, I tried this but it does not return one row per key.
Randy Garland
Renaming Duplicate Row Data To Be Unique?
Sep 22, 2004I just converted an old non-relational database into something that MS SQL likes. The old primary keys were broken up into two columns, one being useful. The column I need to use has some rows with the same values in them.
I am looking for some way in a SQL script to look for the duplicate rows and add "_X" to the data where X is a value incremented by 1 for each duplicate row found.
For example, 3 duplicate rows with "5443aa" would return "5443aa", "5443aa_1","5443aa_2".
Any ideas?
--MartinZ
Check For Duplicate Records No Unique ID
Mar 17, 2014Using SSE 2012 64-bit...How can I check all fields for duplicate records?I tried OVER PARTITION..But that is returning an error message
Code:
USE db
SELECT ROW_NUMBER() OVER (PARTITION BY all fields)
ORDER BY ID --Not unique) AS RowNumber
The text, ntext, and image data types cannot be compared or sorted, except when using IS NULL or LIKE operator
Duplicate Data For Unique Fields With Different Name?
Oct 25, 2013I'm designing an app for stock keeping. In my DB, I have a field called "ItemSerialNo" and I made it unique(but not the table's primary key). On my front end, I have a text box for Item Serial No and a combo box loaded with the item brands and also a save button. I know that if I try to save a serial no already existing in my DB, the app won't allow me because of the unique property of the field named "ItemSerialNo". But I want to be able to save a serial no already existing in my DB but with a different brand name.
For example, I want to be able to save information like:
1. ITEM SERIAL NO = 12345
BRAND NAME = AA
2. ITEM SERIAL NO = 12345
BRAND NAME = BB.
Integration Services :: Duplicate Key Row With Unique Index
Oct 2, 2015I have a look up table with old data, which i need to truncate and load with the new set of data, however when loading I'm getting the following error
[OLE DB Destination [32]] Error: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred.
Error code: 0x80004005.
An OLE DB record is available. Source: "Microsoft SQL Server Native Client 10.0" Hresult: 0x80004005
Description: "Cannot insert duplicate key row in object 'dbo.CaseType' with unique index 'idx_CaseType'. The duplicate key value is (49, AH).".
I know , what it means that since CaseType column has a unique index we cannot insert duplicate key, but in real world the scenarios are different , the record in question is as follows: so what is the workaround in this kind of scenario other than making it Non-unique Index?
CaseTypeID CountyID CaseCategory CaseTypeCode CaseTypeName
21 49 Probate AH Probate
48 49 Civil AH Adoption History
SP Causes The Error Violation Of UNIQUE KEY Constraint Cannot Insert Duplicate Key
Dec 23, 2007The following SP causes the error "Violation of UNIQUE KEY constraint 'AlumniID'. Cannot insert duplicate key in object [table name].
The statement has been terminated." AlumniID is the table's PK and is set to autoincrement. I'd appreciate any help or suggestions.
1 ALTER PROCEDURE dbo.sp_CreateUser
2
3 @UserID uniqueidentifier,
4 @UserName nvarchar(128),
5 @Email nvarchar(50),
6 @FirstName nvarchar(25),
7 @LastName nvarchar(50),
8 @Teacher nvarchar(25),
9 @GradYr int
10
11 AS
12 SET NOCOUNT ON;
13 --DECLARE @UserID uniqueidentifier
14 --SELECT @UserID = NULL
15 --SELECT @UserID = UserID FROM dbo.aspnet_Users WHERE LOWER(@UserName) = LoweredUserName-- AND @ApplicationId = ApplicationId
16 INSERT INTO [table]
17 (UserID,UserName,Email,FirstName,LastName,Teacher,GradYr)
18 VALUES (@UserID,@UserName,@Email,@FirstName,@LastName,@Teacher,@GradYr
Unique Constraint Does Not Permit Duplicate NULL Values
Oct 2, 2000After adding a Unique constraint to a database I cannot add more than one record with a null value for the constrained field. I've tried both adding the constraint to an empty table as well as a table with multiple null values already in the subject field; both efforts have failed.
According to BOL SQL-7 allows Unique Constraints on fields with Null values. Am I missing a step? I do need to allow nulls in the field yet ensure that when there is a non-null value it is unique.
The SQL statement I've used is: ALTER TABLE tbl_MasterUIC ADD CONSTRAINT uniquesamplenbr UNIQUE NONCLUSTERED (samplenbr)
Thanks for any and all suggestions
Power Pivot :: How To Flag Unique And Duplicate Records (DAX)
Oct 26, 2015I am trying to find duplicate records based on a set of criteria, and flag one of those records as unique and the other duplicate ones as dup.
I found this suggestion:
IF( CALCULATE(
COUNTROWS( Table1 );
FILTER( Table1; [Column1] = EARLIER( [Column1] ) && [Column2]
= EARLIER( [Column2]
) )
) > 1;
"dup";
"unique"
)
However, this method flags all duplicates as dup. how I can get to the enclosed results for one particular student?The dup check column shows the desired results. The criterion is any record with the same STUDENT_ID, PROG_DESC, FISCAL_YEAR will be considered as duplicates, but should at least have one record out of that group of duplicates flagged as 1.
STUDENT_ID| ACAD LEVEL | GENDER |
PROG_DESC | RACEETHNICITY |
HOME_STATE | ACADEMIC_LEVEL | FISCAL_YEAR |
Dup Check
815581 Undergraduate
[code]....