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Delete Duplicate Records


I use a tabel for storin log data from a mail server. I noticed that I'm getting duplicate records, is there a way to delete the socond and/or third entry so I dont have any duplicates?





I need this done in SP.




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Related Forum Messages:
Delete Duplicate Records
Sorry for the new thread.

I have a userprofile table. There are a lot of duplicate records in this table. e.g.

USERID-----LASTNAME---EMAILADDRESS----CREATEDATE
----------------------------------------------------------------------
1----------A-----------A@yahoo.com---------2000-09-05 16:07:00.000
2----------A-----------A@yahoo.com---------2000-09-10 16:07:00.000
3----------A-----------A@yahoo.com---------2000-09-15 16:07:00.000

Userid is auto number, lastname and emailaddress are PK.

I want to delete duplicate records. If lastname and emailaddress are the same, only keep a record which createdate is the most newest date. See above example I only want to the record which userid is 3. I have alreday created a code which I attached below. This code onle keep a record which userid is 1.

Anybody can help me to solve this problem? Thanks.

============== My current code ====================
delete from userprofile where userprofile.userid in
--list all rows that have duplicates
(select p.userid
from userprofile as p
where exists
(select lastname, emailaddress
from userprofile
where lastname = p.lastname and emailaddress = p.emailaddress
group by lastname, emailaddress
having count (userid)>1))
and userprofile.userid not in
--list on row from each set of duplicate
(select min(p.userid)
from userprofile as p
where exists
(select lastname, emailaddress
from userprofile
where lastname = p.lastname and emailaddress = p.emailaddress
group by lastname, emailaddress
having count (userid)>1)
group by lastname, emailaddress)

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Delete Duplicate Records
Hi,
Please help me in constructing a query that will delete duplicate records in a table;
Please see my table structure below:

CREATE TABLE LATEST_DATA (
[ID] int NOT NULL,
[IPage] varchar(100) NULL,
[IDevice] varchar(255) NULL,
[IGroup] varchar(255) NULL,
[IField] varchar(255) NULL,
[IValue] varchar(255) NULL,
[IIcon] int NULL,
[IID] int NULL,
[ReportID] int NOT NULL,
[RVersion] varchar(255) NULL,
[RHost] varchar(255) NULL,
[RUser] varchar(255) NULL,
[RLocation] varchar(255) NULL,
[RDateTime] varchar(16) NULL,
[RComplete] bit NOT NULL
);

-- Insert Latest data
INSERT
INTO LATEST_DATA
SELECT
[Item].[ID],
[Item].[IPage],
[Item].[IDevice],
[Item].[IGroup],
[Item].[IField],
[Item].[IValue],
[Item].[IIcon],
[Item].[IID],
[Item].[ReportID] ,
[Report].[RVersion],
[Report].[RHost],
[Report].[RUser],
[Report].[RLocation],
[Report].[RDateTime],
[Report].[RComplete]
FROM
[dbo].[Item],
[dbo].[Report]
WHERE
[Report].[ID] = [ITEM].[ReportID] AND
[Report].[ID] = ( SELECT
MAX([Report].[ID])
FROM
[dbo].[Report]
);


thanks

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How Can I Delete Duplicate Records
Hi Guys,

I have the following table
customerid customername
------------------------
1 AAA
1 AAA
2 BBB
2 BBB
2 BBB
3 CCC
3 CCC

Here, I need to delete duplicate records from the above table.
After deleting the duplicate records the table should be
like this:
customerid customername
------------------------
1 AAA
2 BBB
3 CCC


Can any one help me!!!!!!

Regards
js.reddy

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Delete Duplicate Records
Hello everyone,

I have a little dilemma. I have a table ALLTABLE that has duplicate records and I want to delete them. ALLTABLE has these columns with these values for example:

Policy Premium Class State Entity Number
ADC-WC-0010005-0 25476 63 31 1
ADC-WC-0010005-0 25476 63 31 2
ADC-WC-0010005-0 25476 63 31 3
ADC-WC-0010005-0 1457 63 29 4
ADC-WC-0010092-1 2322 63 37 1
ADC-WC-0010344-0 515 63 01 1
ADC-WC-0010344-0 515 63 01 2

As you can see there is some duplicates in the first 3 rows and the final 2 (the entity number is the only difference). I want the table to look like this:

Policy Premium Class State Entity Number
ADC-WC-0010005-0 25476 63 31 1
ADC-WC-0010005-0 1457 63 29 4
ADC-WC-0010092-1 2322 63 37 1
ADC-WC-0010344-0 515 63 01 1

Thank you so much for the help. It is really appreciated.

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How To Delete Duplicate Records From A Table ?
I uploaded some data about 2 or 3 times and it keep appending it to thetable.Now I want to keep only first duplicate and delete rest of.Suppose part number 123 has been added 3 times so I want to keep only 1record.Thanks

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How To Delete Duplicate Records From A Table
Hello All,

Please show me how to delete duplicate records from a table.


Thanks in Advance

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How To Delete Duplicate Records From Table ?
Hello Frnds....Can anybody give the answer of this question as How to Delete duplicate records from Table ?
 I Know that with check option and also with Unique Constraint we can avoid to enter duplicate records in table but How to delete from table which does not have any constraints ?

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Unable To Delete Duplicate Records
I was importing records via DTSWizard, and I was having problems so I turned off Enforce Replicaton, Enforce FK Constraints on a couple of fields. I'm new with SQL Server so I'm not sure if this even caused the problem. (Do I need to turn these back on, or is this a Developer switch of some kind?)

 

The end result left me with duplicate records in the table, and I'm not able to delete any of them. This is the Error I got...

 

A problem occurred attempting to delete row 1.
Error Source: Microsoft.VisualStudio,Datatools.
Error Message: The row value(s) updated or deleted either do not make the row unique or they after multiple rows(2 rows).

 

If someone could tell me what I need to do so I can delete the records I'd really appreciate it.

 

Thanks,

Bill

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Delete Duplicate Records From Huge Tables
Hi All,I've the following table with a PK defined on an IDENTITY column(INSERT_SEQ):CREATE TABLE MYDATA (MID NUMERIC(19,0) NOT NULL,MYVALUE FLOAT NOT NULL,TIMEKEY INTEGER NOT NULL,TIMEKEY_DTTM DATETIME NULL,IID NUMERIC(19,0) NOT NULL,EID NUMERIC(19,0) NOT NULL,INSERT_SEQ NUMERIC(19,0) IDENTITY(1,1) NOT NULL)GOALTER TABLE MYDATAADD CONSTRAINT PK_MYDATAPRIMARY KEY (INSERT_SEQ)GOThe TIMEKEY_DTTM field is generated, from the value actually insertedinto theTIMEKEY field, by the following trigger:CREATE TRIGGER TIMEKEY1ON MYDATAFOR INSERT ASBEGINDECLARE @M_TIMEKEY_DTTM DATETIMESELECT @M_TIMEKEY_DTTM = DATEADD(SECOND, INS.TIMEKEY +EP.GMT_OFFSET * 0 ,'1970-01-01 00:00:00.000')FROM INSERTED INS, LOCATIONINFO EPWHERE INS.EID = EP.EIDUPDATE MYDATASET TIMEKEY_DTTM = @M_TIMEKEY_DTTMFROM INSERTED INS, MYDATA MDWHERE MD.INSERT_SEQ = INS.INSERT_SEQENDGOThere is also a composite, non unique, index defined on thetuple:(MID,IID,TIMEKEY,EID)CREATE INDEX IX_METDATA ON MYDATA (MID,IID,TIMEKEY,EID)GOAs a consequence of an application design change, I would also changethis index to be UNIQUE, but when I try to drop and create it I get anerror, because the tables stores some duplicated rows...In order to succesfully upgrade the index definition, I wrote some DMLstaementsto lookup and remove the duplicated rows, keeping only the firstrecord inserted, i.e. the one with the lowest INSERT_SEQ:---- This table stores then umber of duplicated records eventuallydiscovered-- into the MYDATA table; the initial value for the NUM_DUPLICATESfield is-- 0 (no duplicated record)--DROP TABLE DUPLICATESGOCREATE TABLE DUPLICATES (TABLENAME VARCHAR(17),NUM_DUPLICATES NUMERIC(19,0) )GOINSERT INTO DUPLICATES VALUES ('MYDATA',0)GOINSERT INTO DUPLICATES VALUES ('CATEGORIESDATA',0)GO---- ///////// CLEAN UP OF MYDATA TABLE--DROP TABLE TMP_MYDATAGOCREATE TABLE TMP_MYDATA (MID NUMERIC(19,0) NOT NULL,TIMEKEY INTEGER NOT NULL,IID NUMERIC(19,0) NOT NULL,EID NUMERIC(19,0) NOT NULL,INSERT_SEQ NUMERIC(19,0) )GO---- Insert into the TMP_MYDATA table all the duplicated records for-- the tuple (MID,IID,TIMEKEY,EID) and NULL for the INSERT_SEQ field--INSERT INTO TMP_MYDATA (MID,IID,TIMEKEY,EID)SELECT MID,IID,TIMEKEY,EIDFROM MYDATAGROUP BY MID,IID,TIMEKEY,EIDHAVING COUNT(*)>1GO---- Updates the INSERT_SEQ field to the lowest value in the group-- of duplicated records--UPDATE TMP_MYDATASET TMP_MYDATA.INSERT_SEQ = (SELECT MIN(INSERT_SEQ)FROM MYDATAWHERE TMP_MYDATA.MID = MYDATA.MID ANDTMP_MYDATA.IID = MYDATA.IID ANDTMP_MYDATA.TIMEKEY = MYDATA.TIMEKEY ANDTMP_MYDATA.EID = MYDATA.EID )GO---- Updates the value of NUM_DUPLICATES for the MYDATA table.--UPDATE DUPLICATESSET NUM_DUPLICATES = (SELECT COUNT(*) FROM TMP_MYDATA)WHERE TABLENAME = 'MYDATA'GO---- Delete from the MYDATA table all the duplicated records,-- keeping only the row with the lowest INSERT_SEQ-- The delete is performed only if there are duplicated recors;-- this is achieved using a "short circuit" AND on the number ofrecords-- stored into the NUM_DUPLICATES field of the DUPLICATES table for-- the MYDATA table...--DELETE FROM MYDATAWHERE ( SELECT NUM_DUPLICATES FROM DUPLICATES WHERE TABLENAME ='MYDATA') > 0 ANDEXISTS ( SELECT 1FROM TMP_MYDATAWHERE MYDATA.MID = TMP_MYDATA.MID ANDMYDATA.IID = TMP_MYDATA.IID ANDMYDATA.TIMEKEY = TMP_MYDATA.TIMEKEY ANDMYDATA.EID = TMP_MYDATA.EID ANDMYDATA.INSERT_SEQ > TMP_MYDATA.INSERT_SEQ )GOThis tecnique works fine on a normal table (1M recs) but is not veryperformanton huge tables (>10M records)!Do you know a better way to achieve the task of removing all theduplicates records, preserving the lowest INSERT_SEQ betwee theduplicates and also preserving the sequence seed, so that a new recordinserted at time t1>t0 is enumerated with an INSERT_SEQ|t1 >max(INSERT_SEQ)|t0 ?Thanks a lot for your help!PatrizioPS. sorry for such a large post!

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Unable To Delete Duplicate Records In Database
Hi,I have an sql database that has the primary key set to three fields,but has not been set as unique(I didn't create the table).I have 1 record that has 2 duplicates and I am unable to delete theduplicate entries.If I try to delete any of the three records(they are identical) I getthe message 'key column is insufficient or incorrect. Too many rowswere affected by update'.I am trying to do this within Enterprise Mgr.Any suggestion?Thanks much

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Have Duplicate Records, Can't Delete &"extras&"!
I have inherited a database with no primary keys in it. :(

There are, of course, duplicate records by the "logical key", i.e., the list of columns that should have been used in a primary key, if they only had one. I can easily identify when I have duplicate records using group by and having clauses.  That's the easy part.I can identify duplicate records by "key columns" and the subset of those records that are "identical duplicates on all columns".  I need to delete the "extra copies"

I can't do it by hand using sql server manager, it won't let me, because it recognizes that more than one row matches that row. In Oracle, I would use the pseudo-column "rowid", which would expose the internal identifier for the row.SqlServer doesn't appear to have this concept. is there another way other than creating an empty shadow table, copying all the distinct duplicate records into the shadow table, deleting all the duplicates in the old table, then copying the distinct duplicates back into the old table. 

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Data Flow Task To Delete Records And Then Insert Records In Transaction
HI,

I have been trying to solve the locking problem from past couple of days. Please help mee!!

Scenario:
--------------
I have a SSIS package in which 2 data flow tasks. 1st data flow task deletes records from a 5 tables and the 2nd data flow task should insert records into 1 of the five tables after the success of 1st data flow task. This scenario runs in Transacation.

The above scenrio in the 2nd data flow task hangs in runtime. It does not complete. with sp_who2 command i could see that there is an intent share lock(LK_M_IS) on the table and the status is SUSPENDED.

I dont know how to come out of this locking. Please help.

Thanks ,
Sunil

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Delete Duplicate Rows
Suppose that we have the following rows in a MSSQL table :


1administrateur1NULLNULL
2administrateur2NULLNULL
1administrateur1NULLNULL
2administrateur2NULLNULL



How to remove duplicates (leave only the 2 first rows) ?

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Delete Duplicate Rows
Hi,
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

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DELETE DUPLICATE ROWS
CAN 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

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Delete Duplicate Values Except One?
Hi Everybody,

How to delete the duplicate values from the columns except one. For Eg. if the name of the table is "emp" with only one field "empname" of type varchar. This field has got four values all of which are duplicate. Eg. "samir" "samir" "samir" "samir"

What I want is to delete 3 records and keep only one value. How do I achieve that?

Regards,

Samir.

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Delete Duplicate Rows Using T-SQL
How do you delete duplicate rows in a table so only one row is left in the table, using T-SQL.

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Delete Duplicate Rows
I 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.

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How Can I Delete All But One Instance Of A Duplicate Row?
I have several rows in a table that contain duplicate information. I want to trim them down to one instance per row, without other duplicates.

I have several columns, but only 2 of the columns are used to determine the "Identical Rows", however one of the other columns could also be used to determine which of the others are deleted.

Let's just say I have a table called DATA.
In DATA I have the following columns:
C1: ID/Key column (Unique numbers not associated with any other row)
C2: Specific Data column 1
C3: Specific Data Column 2
C3: Keeper if not null
C4: Misc Info
C5: Misc Info

Basically IF C2 & C3 are duplicated, then I want to keep one of these and ditch the others.

The row I want to keep is the one that has info in C4, but at times C4 does not have anything in it on any of them, at that point I just care about keeping one of the C2 & C3 Duplicate rows.

The other issue I face is C2 will always have something in it, but at times C3 will not and C4 will.

So I want to keep the one duplicate row that has the most info in it. At minimum, I want to always keep C2 & C3 if they both contain data.

For example, if I had the following duplicate rows:
(C2) red (C3) 123 (C4) XYZ
(C2) red (C3) 123 (C4) XYZ
(C2) red (C3) 123 (C4) XYZ
(C2) red (C3) (C4) XYZ
(C2) red (C3) 123 (C4)

I want to keep: (C2) red (C3) 123 (C4) XYZ

I have some rows that have three exact duplicates, some that have four, some that have two.

How can I tell the Query Manager to delete all but one instance of each duplicate row?

I did do a query to find out how many duplicates I have and found it to be around 232,000+. Basically I will be cutting this in half if I can get rid of the duplicates.

I have read 30 different ways on many sites and I am now officially confused

Thank you for your help.

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Delete Duplicate ROWS
How to delete duplicate records from table ? Is there any query for that ?
I am using SQL 2005.

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Delete Duplicate User
Hello I am import a file into a SSIS package. Is there a easy way to delete duplicate user in the file. Could i use a sql task or something.

thanks

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Delete Duplicate Record
Hi ,

How can i delete the duplicate record from a table

use Northwind
create table Emp (Ecode char(2), Ename char(10))
Insert into Emp(Ecode, Ename) values('A1','A')
Insert into Emp(Ecode, Ename) values('A1','A')
Insert into Emp(Ecode, Ename) values('A2','B')
Insert into Emp(Ecode, Ename) values('A2','B')
Insert into Emp(Ecode, Ename) values('A3','C')
Insert into Emp(Ecode, Ename) values('A3','C')
Insert into Emp(Ecode, Ename) values('A4','D')
Insert into Emp(Ecode, Ename) values('A4','D')

select * from emp order by Ecode


Thanks

ASM

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How Do You Delete Duplicate Rows......
How 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.

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Duplicate Delete Timeout
Hi All,

I am trying to delete the duplicates from a table, but keep 1 of the records.

Here is my query which works on smaller tables <2000 records, but the query either timeouts or just runs and runs on larger tables >50,000 and >150,000.


DELETE
FROM Table1
WHERE Table1.ID IN

/* LIST 1 - all rows that have duplicates*/
(SELECT F.ID
FROM Table1 AS F
WHERE EXISTS ( SELECT computerName, programName, version, publisher, Count(ID)
FROM Table1
WHERE Table1.computerName = F.computerName
AND Table1.programName = F.programName
AND Table1.version = F.version
AND Table1.publisher = F.publisher
GROUP BY Table1.computerName, Table1.programName, Table1.version, Table1.publisher
HAVING Count(Table1.ID) > 1))
AND Table1.ID NOT IN

/* LIST 2 - one row from each set of duplicate*/
(SELECT Min(ID)
FROM Table1 AS F
WHERE EXISTS ( SELECT computerName, programName, version, publisher, Count(ID)
FROM Table1
WHERE Table1.computerName = F.computerName
AND Table1.programName = F.programName
AND Table1.version = F.version
AND Table1.publisher = F.publisher
GROUP BY Table1.computerName, Table1.programName, Table1.version, Table1.publisher
HAVING Count(Table1.ID) > 1)
GROUP BY computerName, programName, version, publisher);

TABLE STRUCTURE::
ID computerName programName version publisher installDate
1 COMP1Microsoft .NET Framework 1.11.1.4322Microsoft 20050216
2 COMP1Windows XP Hotfix - KB89178120050110.17Microsoft NULL
3 COMP1Windows Media Player 10 NULL NULL NULL
4 COMP1Microsoft .NET Framework 1.11.1.4322Microsoft 02/16/2005

The duplicate records i am trying to delete are not truly duplicates, each record has a unique ID and install dates could vary. I am trying to identify duplicate records as identical (computerName + programName + version + publisher) See records 1 and 4 in table structure above... i dont care which of the duplicates is kept, as long as 1 is kept.

What I am looking for is either a completely new query which maybe optimized to run on a larger scale table or maybe just a performance tweak to my exisitng query??

Any help would be greatly appreciated!

Thanks.

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How To Delete Duplicate Data From Field
 

my table structure is
  id                 field1   
  1               i am from india
  2               i am  from usa
  3               i am from  delhi   

 
So i want to remove common data from field1 , means   after run the query table should be like
 
  id                 field1   
  1               india
  2               usa
  3               delhi   
 
thanks in advance
saumitra tamrakar
 

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Duplicate Records
Hi

Can anyone tell me how to stop a SQL query displaying duplicate records within a table

Thanks Alot

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Duplicate Records
Can someone tell me the best procedure when trying to find duplicate records within a table(s)?

I'm new using SQL server and I have been informed that there maybe some DUPS within unknown tables. I need to find these DUPS.

If someone can tell me how to perform this procedure I would apprciate it. And if you reply can also include examples that i could follow for my records.

Thanks for the help?

-SQL Rookie

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Duplicate Records
Is there a code sample I can get for Deleting duplicate records from a sql table.

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Duplicate Records
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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Duplicate Records
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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Duplicate Records
Hi All,

How to check for the duplicate records in the table? Thanks.

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Duplicate Records
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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Duplicate Records
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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Duplicate Records
how to we check in for duplicate records without using sort (remove duplicateS)

i need to remove duplicates based on four columns.

please let me know

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Duplicate Records
I have a table with phone numbers.

I want to find if any phone number are repeated more then once. How can I accomplish this?

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Duplicate Records
Hi,

Not so sure how simple this question is but here is what happened.  I installed SQL Server 2005 on a new Win Server 2003.  I exported the tables and their data from the old machine to the newly established database on the new machine. 

It looks like all my records were duplicated.  When I try to delete one of the duplicates it won't work because both rows are effected.  I can't set my primary key now and if I try to create a new database with the primary key already set than the import fails.

Any one run into this before or know what's going on?

Any help ASAP would really be appreciated.

Thanks,

Alice

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Duplicate Records
Table1 has shop# and shop_id. Every shop# should have only one shop_ID. There has been a few data entry errors where a shop# has duplicate a shop_id. How to write a query for shop#s that have more than one shop_id?

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Duplicate Records
anybody know what sql statement can be used to pull duplicate records from an sql table.

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How To Delete Duplicate Rows Retaining Only One Of Them From Every Set Of Duplicates.
 
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

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Delete Duplicate Rows With No Unique Columns
I 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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Need A Stored Procedure To Delete Duplicate Rows
hi every body
 
can any onehelp me in making a stored  procedure to delete a duplicate rows in tables
 
thanks in advance
 

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Duplicate Records In A Table
How do i remove duplicate records from a table with a single query without using cursors or anything like that.Sample :tempCol11221P.S The table has only one column  

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Duplicate Records On Database
hi all,
How do i avoid duplicate records on my database? i have 4 textboxes that collect user information and this information is saved in the database. when a user fills the textboxes and clicks the submit button, i want to check through the database if the exact records exist in the database before the data is saved. if the user is registered on the database, he wont be allowed to login. how can i acheive this?
i thought of using the comparevalidator but i'm not sure how to proceed.
thanks

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Records Duplicate When Edited...?
Hi,I have written a web application using dreamweaver MX, asp.net, and MSsql server 2005.The problem I am having occurs when I attempt to edit a record. I have setup a datagrid with freeform fields so that the user can click on edit, make the required changes within the data grid then click update. The data is then saved to the database. All this was created using dreameaver and most of the code was automatically generated for me.The problem is that, not everytime, but sometimes when I go to edit a record once I hit the update button to save the changes the record is duplicated 1 or more times. This doesnt happen everytime but when it does it duplicates the record between 1 and about 5 times. I have double checked everything but cannot find anything obvious that may be causing this issue. Does anyone have any suggestions as to what I should look for? Is this a coding error or something wrong with MSsql? Any ideas?Thanks in advance-Mitch 

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Prevent Duplicate Records
I have a web form that I use to insert data into a sql database. I want to know how to prevent inserting duplicate records into the database. Thanks.

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Return Duplicate Records
Hello experts,I'm trying the run the following query with specific intentions.I would like the query to return 5 results; i.e., 4 distinct and oneduplicate. I am only getting, however, 4 distinct records. I wouldlike the results from the '007' id to spit out twice.I'm not using 'distinct,' and I've tried 'all.' I realize that Icould put my 5 employee id's in a table and do a left or right join; Iwould like to avoid that, however. Any thoughts?SelectEmployee_last_name,Employee_first_name


Quote:

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Deleting Duplicate Records
Hi All,
I am having one table named MyTable and this table contains only one column MyCol. Now i m having 10 records in it and all the records are duplicate ie value is 7 for all 10 records.

It is something like this,

MyCol
7
7
7
7
7
7
7
7
7
7

Now i m trying to delete 10th record or any record then it gives me error
"Key column information is insufficient or incorrect. Too many rows were affected by update."

What should i do if i want only 4 records insted 10 records in my table?
How do i delete the 6 records from table?

Plz help me.


Regards,
Shailesh

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Need To Remove All Duplicate Records.
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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Picking Out Duplicate Records
Hi, I have a student results table with the layout shown below (four records with the fields separated by dashes). Sorry its so messy. Anyway, you can see that there are duplicates. I want to write an SQL statement that will pick out only the 'supplemental' records if duplicates occur. Any ideas on how to do this?

ID - StudentNo - Subject - Term - Yearofstudy - YearTaken - Grade
1195- 11111111- MA1E2- Annual - 1- 2006- 34
1205- 11111111- MA1E2- Supplemental- 1- 2006- 40 (S)
1194- 11111111- MA1E1- Annual -1- 2006- 35
1204- 11111111- MA1E1- Supplemental- 1- 2006- 40 (S)

Here is the SQL I'm using to get all the records from the studentresults table, for first years only:

SELECT *
FROM studentresults
WHERE studentresults.StudentNo = 11111111 AND studentresults.YearOfStudy = 1

How do I change this to pick out only the supplemental exam results?

Regards,

sabatier

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Deleting Duplicate Records.
I need a sql statement to delete duplicate records.

I have a college table with all colleges in the nation.
I noticed that all of the colleges were listed twice.
How do I delete all of the duplicate records.

Here is my table.
Colleges
-------------------
schoolID - smallint NOT NULL,
schoolName - varchar(60) NULL

Can someone help me out with the sql statement???
I'm running SQL Server 6.5.

- ted

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