How I Do To Eliminate Duplicate Rows?
Apr 11, 2007
Hello,
I need to eliminate the duplicated rows in sql server 2000, but the duplicate is only for some fields of the row. However, I need all the fields of the row. For example, I have the next structure:
Id_type, number_type, date, diagnosis, sex, age, city
After many analysis I get many rows where the tree first field are repeated, so I need to leave only one but with the all another fields. This is because I need only the first time when the diagnosis appear.
How I can do it??
Thank you very much.
Regards,
Angela
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May 30, 2007
Working in Sql Server 2005,got 3 different table.Need to fetch the list of persons.A person can belong to different categories.When i am using inner join
on tables i am getting the duplicate rows because a perosn can belong to different categories.I want that there should be only onoe
row for the person and the different categories he belongs to can come up in single field as comma sepatated string
Now the results are like this:
firstname lastname adress category
abc xyz aaa a
abc xyz aaa b
abc xyz aaa c
I want like below:
abc xyz aaa a,b,c
I am thinking of using cursors in the stored procedure.Can you provide me the solution of this including the stored procedure..
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Nov 21, 2007
Dear all,
I built a package to transform data from flatfile into temp table. Then execute a stored procedure to tranform from the temp table into the real table. Since the real table have primary keys so it goes failed when there're duplicate rows from temp table. I let the temp table has no primary key. If I had to check the temp table for duplicate rows it would be using cursor through the data and the package will get slow. Is there task in SSIS to identify the duplicate data and eliminate it without using cursor ?
Thanks in advance,
Best regards,
Hery
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Jun 8, 2015
We have the below query which is pulling in Sales and Revenue information. Since the sale is recorded in just one month and the revenue is recorded each month, we need to have the results of this query to only list the Sales amount once, but still have all the other revenue amounts listed for each month. In this example, the sale is record in year 2014 and month 10, but there are revenues in every month as well for the rest of 2014 and the start of 2015 but we only want to the sales amount to appear once on this results set.
SELECT
project.project_number,
project.country_code,
project.project_desc,
gsl.global_service_line_desc,
buy.buyer_desc,
[Code] ....
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Jul 29, 2003
Table A
JobNoClaimShipType
A1100I
A1200II
Table B
JobNoCost
A150
A1100
Result Expected
JobNOCost Claim Shiptype
A150 100I
A1100 200II
Hi all,
i've given a table structure with data
and the expected result .
I want to establish it in SQL server (7.0)
If i establish the inner join i get 4 rows (2*2)
Please let me know how to get the result
Thanx in adv
Tarriq
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Jun 22, 2007
Hey Again,
I've been making great progress but I've hit another road block which a newbie intern like myself can't surpass. What's worse is the fact that no one is in the office today! Maybe someone can point me in the right direction with this SQL:
SELECT
r.[requestID]
,r.[requserID]
,r.[departmentID]
,CONVERT(CHAR(8),r.[submitDate],10)AS submitDate
,CONVERT(CHAR(8),r.[dueDate],10)AS dueDate
,CONVERT(CHAR(8),r.[revisedDueDate],10) AS revisedDueDate
,r.[reqStatus]
,r.[completedDate]
,d.[departmentName]
,s.[statusName]
,u.lastName + ', ' + u.firstName AS submittedBy
,ra.userID
FROMtblUserDepartment ud
INNER JOIN tblRequest rON ud.departmentID = r.departmentID
INNER JOIN tblDepartment dON r.departmentID = d.departmentID
INNER JOIN tblStatus sON r.reqStatus = s.statusID
INNER JOIN tblUser uON r.requserID = u.userID
LEFT JOIN tblRequestAssignee ra ON r.requestID = ra.requestID
WHEREud.userID= @userID
This works great except for one thing. In tblRequestAssignee, you have 1 primary assignee and can have several other assignees (that are not primary). This is denoted by a bit field "isPrimaryAssignee" in tblRequestAssignee. When I run the query, I see every request I want to but it duplicates requests with more than one assignee. What I'm trying to do is make only the primaryAssignee display if there is one. If there's not, then null is displayed (which is already happening).
Like I said, the query is mostly working right except for this duplicate record that displays when there's 2 assignees. Any help would once again be greatly appreciated.
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Sep 20, 2006
I have a table with 68 columns. If all the columns hold the same value except for one which is a datetime column I want to delete all but one of the duplicate rows. Preferably the latest one but that is not important. Can someone show me how to accomplish this?
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Apr 3, 2008
Hi Guyz
say i have a table
10011 NULL NULL Classical NULL
10011 NULL NULL Classical NULL
10004 NULL NULL Classical NULL
10004 NULL NULL Classical NULL
10004 NULL NULL Classical NULL
10005 NULL NULL Classical NULL
i want to eliminate the duplicate records and atable should look like
10011 NULL NULL Classical NULL
10004 NULL NULL Classical NULL
10005 NULL NULL Classical NULL
do we have any simple sql to do it or something complex.
thanks in advance !
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May 1, 2015
We have rolap based cube .. when we run the report on that it is take more time than expected.I have run the profiler and identified .. same query is duplicated and running multiple times. I have run the query .. it took 10 seconds..how to eliminate duplicate queries .
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Feb 28, 2008
In my employee table has the following fields empid, empFname, empLname, email, city
Say it has data like follows:
1, Lucy, Sam, l@some.com, city1
2. Sam, Wite, l@some.com, city2
3. Laura, Mac, l@some.com, city2
4. Stacy, Soo, s@no.com , city1
So in my case I want to show all the column but I want to eliminate multiple email addresses. I tried Distinct but its not workin because here every column is not distinct. So what should I use?
In my case I only want to show empID 1, 3, 4. I want to show all the columns
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Apr 27, 2015
I have a lot of different data flows that need "Derived Column". There are maybe only 5 different such "Derived Column" but they appear many times. Is there a way to eliminate all that double work? It should be something that does not take me more time to do than just duplicating all the "Derived Columns".
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Nov 28, 2007
Dear Gurus,I have table with following entriesTable name = CustomerName Weight------------ -----------Sanjeev 85Sanjeev 75Rajeev 80Rajeev 45Sandy 35Sandy 30Harry 15Harry 45I need a output as followName Weight------------ -----------Sanjeev 85Rajeev 80Sandy 30Harry 45ORName Weight------------ -----------Sanjeev 75Rajeev 45Sandy 35Harry 15i.e. only distinct Name should display with only one value of Weight.I tried with 'group by' on Name column but it shows me all rows.Could anyone help me for above.Thanking in Advance.RegardsSanjeevJoin Bytes!
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Jun 25, 2001
I used the following select statement to get duplicate records on Case_number column
select cases.distinct case_link, cases.case_number
from cases
group by case_link
having case_number > 1
I got the error message that
"'cases.warrant_number' is invalid in the select list because it is not contained in either an aggregate function or the GROUP BY clause.
AND
cases.case_number' is invalid in the HAVING clause because it is not contained in either an aggregate function or the GROUP BY clause.
Any idea on a better statement to use. THANKS FOR YOUR HELP!
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Jun 29, 2001
Hi,
I have a table and this is what i did to get the desired result
Select A.col1,count(A.col1)
from Tab1
group by col1
having count(A.Col1) > 1
i tried this - but it didnot worked - it returned col1 as blanks -
Select A.col1,B.Col2,count(A.col1)
from Tab1 A, Tab2 B
where A.col1 = B.col1
group by A.col1 , b.col2
having count(A.Col1) > 1
As I was looking for all the rows that are apperaing more than once.
Now - The problem -
I have to join this table to another table Tab2 to get the other details.
My Tab2 is a table from where I have to pull the Customer DEtails like name,address etc.
How should I write this query?
Any thinuhts?
TIA
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Jul 20, 2006
Hi,
i wanna know, how can i check if i have duplicate rows in my table?
thanks
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May 16, 2007
Hi. I'm a SQL Server newbie, very experienced with Access, developing an ASP.NET database editor web app. I query the database with a statement more or less in the following form:
SELECT organisation.OrgID, organisation.Name, organisation.whatever FROM services INNER JOIN servicegrouping ON services.serviceID=servicegrouping.serviceID INNER JOIN organisations ON servicegrouping.OrgID = organisations.OrgID WHERE services.service=x OR services.service=y
In other words, I have a database of organisations. The services offered by the organisations are in a separate table, and I only want to return organisations that offer services X or Y.
Okay, now if I did this in Access, this query would return just one record for each organisation that meets the condition, unless I was to include a field from the services table in the SELECT clause, in which case of course I would get one record for each organisation and unique service offered.
But in MS SQL, the query returns duplicate rows if there is more than service offered by the organisation that meets the WHERE condition (=x or =y). Why is this and what do I need to do to my SQL statement to ensure I only get unique rows?
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Feb 6, 2008
Hi,
I've a query which gets a set of data from multiple tables -
select *
FROM A
inner JOIN q
ON (RIGHT(q.name,CHARINDEX('-',REVERSE(q.name))-1)= a.id)
inner JOIN t
ON (t.id = q.id)
inner JOIN s
ON (q.name = s.name )
inner join l
on (s.name = l.name
and t.name = l.name)
WHERE A.id = 764
and s.name = '764'
I get repeated # of rows for each id. I've some 136 rows for each q.id ( there are 6 q.ids and hence I get 816 rows instead of 136) These 136 rows are actually divided among thse q.ids as
id=5, 4 rows
id=6, 8 rows
id=7, 24 rows
id=8, 40 rows
id=10, 60 rows
total=136 rows
Let me know what I'm missing here
Thanks for your help!
Subha
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Feb 1, 2008
Hello,
I have a question, what does a statement look like that finds the duplicate rows and combines them,
I have a table named PRODUCTS in it 3 columbs Cost, Stock, Part_number.
I need to find all Part_numbers that dublicate, Combine the rows into 1 & combine (sum, add) their stock together is the new row & take an avarerage of their cost and use it as cost in the new row where they combine.
Please help me, I am stalled. Looked all over the internet & could not find anything, I really need this for a project I can not finish.
I have the following SQL statement:
SELECT part_number,
COUNT(part_number) AS NumOccurrences
FROM Products
GROUP BY Part_number
HAVING COUNT(part_number) > 1
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May 6, 2008
I have a csv file that I need to import daily into a SQL Server 2005 table. Much of the table contents could just be overwritten with the new csv file, however there are a set of Rows within the table that need to be appended to , rather than overwritten.
There is no Primary Key in the csv file that can be used.
I'm not sure this is the best approach, but what I have been trying to do, is append the entire csv file to the existing table, and then go back and delete the duplicates.
When I run the Delete, it does delete the majority of the records, but leaves a couple hundred behind. The number left behind varies with each run, can't seem to identify a pattern here. Running the Delete a second time does clean up the rows left behind in the first execution of the Delete, and gives the result I want.
Any thoughts as to why this needs to be run twice? Or is a better approach available?
Here is my code -
SELECT [Pkg ID], [Elm (s)], [Type Name (s)], [End Exec Date], [End Exec Time], dupcount=count(*)
INTO temppkgactions
FROM pkgactions
GROUP BY [Pkg ID], [Elm (s)], [Type Name (s)], [End Exec Date], [End Exec Time]HAVING count(*) > 1
DELETE TOP (SELECT COUNT(*) -1 FROM dbo.temppkgactions WHERE dupcount > 1 )
FROM dbo.pkgactions
DROP TABLE temppkgactions
Thanks
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Apr 6, 2001
hi,
I want to delete duplicate rows in a table, can any one write a sql for doing that...
please help me in this...
urs
Vj
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Aug 9, 2000
Hi,
I have a table with four columns. like id,lastname,
firstname,acctname. I have duplicate values for the three columns other
than id column. like
ID FirstNameLastname Acctname
1 john hopkins jh
2 john hopkins Jh
3 david webb dw
4 david webb dw
5 david webb dw
6 Dan Kennedy DK
I want to eliminate the duplicate rows. id can be any one of them.
Can any one suggest me with a query by which i can do this.
Thanks in advance
Mohan
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Jun 25, 2000
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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Jan 25, 2000
I 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
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Jan 20, 2000
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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Sep 14, 1999
Hi,
I am encountering a problem. There are lots of duplicate rows in the cobol flat files (due to improper data entry and missing columns values )from where I am transforming data to sql 7. 0 tables using DTS. After transformation , can I some how mark the duplicate rows ? it is not for the purpose of eliminating them, but to enter the missing values and make all the rows complete and unique.
I have the transformed table as a temporary table. Can I add a column like 'status' etc.. and have the column values marked '1' for the repeating rows etc....
Can anyone suggest 'any' possible way of implementing it ?
Thanx
Nisha
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Feb 11, 1999
Hai
I have problem in deleting duplicate rows. I have a identity column in my table, if I try to use correlatted sub query with Delete command it gives error.
The other problem I have is I have a date column in my table and update that column with current date and time. If use a query to fetch a records on a particular day , it does not return any rows
select * from rates where ch_date >='02/11/99' and ch_date<='02/11/99'
If I use convert also there is some other problems. Is there any way to force date checkings to be done excluding time.
Thanks
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Mar 30, 1999
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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Jul 9, 1998
Hello,
I have a table (mytable) with the following structure
docs int
field1 varchar(20)
......
the information in the table may look like this
docs field1
1 hello
2 hello
3 test
4 test
5 problem
6 problem
The docs column autoincrements and their is a unique constraint on it. The field1 column does not have any constraints on it.
how does on delete the duplicates without deleting both.
I can write a SQL statement to tell me what docs are dups, and what the field1 values are, but I cannot just delete one
Do I write a cursor? or is there an sql statement that would delete just one?
thanks
Steve Power
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Nov 17, 1998
This is an imaginary problem while discussing ROWID in ORACLE.
Consider a table without primary key, unique key, uniuqe index.
A row has inserted into the table many times.
I want to delete all but one dulicated rows. With any 'where' clause all rows(duplicated)
will be deleted. In ORACLE i can achieve this using ROWID as follows:
Delete from Table_name
where < all column values >
and ROWID <> ( Select max(rowid) from Table_name where < all column values > )
How can this be achieved in MS SQL Server 6.5 ?
According to Dr. Codd's Golden rules for RDBMS one is that
One should be able to reach each data value in the database by using
table name, row idenfication value and column name.
Does MS SQL Server 6.5 satisfy this requirement ?
Also How many of Dr. Codd's 13 Golden Rules for RDBMS does MS SQL Server 6.5
Satisfy? Which doesn't ?
Any discussion about Codd's Rules is welcome.
- Gunvant Patil
gunvantp@yahoo.com
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Aug 6, 2004
Hi everyone, I'm migrating some information for a client at the moment. They had everything in Excel files and I'm getting them into SQL Server. There are some differences in the way I am storing data and the way they were storing data.
For each client they stored, they had something like
Rel1 Rel2 Rel3
100 101 102
Now, what I have is a seperate row for each of Rel1, Rel2 and Rel3 so I would have 3 seperate rows with identical information except for Rel1. So I would have:
Rel1
100
101
102
So one way I thought of doing it was inserting a new row specifying that the value for Rel2 should be stored in Rel1 and for the next row that the value for Rel3 should be stored in Rel1.
Now, I am able to do this but SQL Server inserts an extra row will the NULL value in Rel1. Does anyone know why this would be happening? I think what it is doing is finding a NULL value in Rel3 after creating the two extra rows and is inserting that NULL. So I think I need to check for NULLs and not allow it to create a new row if, say, Rel3 is NULL.
Any pointers are gladly welcome. (I know it's complicated )
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Dec 12, 2007
Hello I am fairly new to SQL and having spent much time over the manual I decided to ask for help. So here's my deal.
I've got a query with 5 tables that I join together
Code:
SELECT * FROM Map
INNER JOIN ThreatCategory
INNER JOIN Threat ON
ThreatCategory.threatCategoryID = Threat.threatCategoryID
INNER JOIN Threat_Map
ON Threat.threatID = Threat_Map.threatID
ON Map.mapID = Threat_Map.mapID
LEFT JOIN person on map.contentPersonID = person.personID
WHERE (((DATEDIFF(dd, Map.dataAcquisitionDate, GETDATE()) > map.goodForDays) and (map.expired = '1'))
or (map.expired = '3'))
The problem is the table Threat_Map is a many to many mapping between the Map table and the Threat table. Eg) A map can have more than one threat and a threat can have more than one map. I know this is not the best way to have a database set up but its out of my hands as to changing the database. What I need help with is this.
My application checks as to whether a certain field in the Map table is expired or out of date (as in the query). If so it gets some required information from the other tables using those joins. However, I don't want to get information for the same Map.mapID that's expired twice. I don't really care which ThreatID I get from the Threat_Map table I just need to get one of them to meet the objects standards. However, so far this seemingly simple task has eluded me. I'd like to do this in SQL. Is there perhaps a way to do this. If not I guess I'll just take care of it in the application.
-Alex
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Jan 13, 2005
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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Oct 17, 2005
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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