MS SQL Dealing With Duplicate Columns In Rows?
Aug 21, 2007
Hello,
Suppose I have the following table...
name employeeId email
--------------------------------------------
Tom 12345 Join Bytes!
Hary 54321
Hary 54321 Join Bytes!
I only want unique employeeIds return. If I use Distinct it will still
return all of the above as the email is different/missing. Is there a
way to query in SQL so that only distinct employeeId is returned? no
duplicates.
I wouuld like to say WHERE no blank fields are present to get the
right row to return.
Many thanks
Yas
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Jan 30, 2008
Hello,
I have a question, i loaded 2 files into SQL and the files have some cells that have the same model number.
how can I merge the cells together that have the same model number and (if possible take the avarage of their cell called price)
(and combine their other cell called stock)
and make it into one cell.
Any help would be very very apriciated. Thank you.
i tryed this but it does not work
SELECT Model_number FROM Products
Join Where Model_number='3CM3C1670800B'
I have also Tryed this, IT SHOULD work but I have an error someWhere:
delete from Productsfrom part_number a join
(select part_number, max(part_number) from part_number group by part_number having count(*) > 1) b
on a.part_number = b.part_number and part_number < b.part_number
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Jul 23, 2005
Hi 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.
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Apr 3, 2000
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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Apr 3, 2007
Hi,
I just realized something. In the old DTS package I am migrating, there is an ActiveX script that checks for a certain condition in a row. If the condition is true, then it does:
DTSTransformationStat_SkipRow
I just can't believe there isn't an equivalent functionality in SSIS.
However, so far, I have tried the following:
1.) Redirect file error output (on all columns in the file)
2.) Use a conditional transform to search for a text string in a column (the "bad" row has different text in it)
And still, I keep getting errors that there is an "impartial row" in the file. Yes, I know that - why doesn't the error redirection catch this? Why doesn't the conditional expression catch it either?
Am I missing something here? Is it just buggy? I find it hard to believe I have to work around something that worked just fine in DTS.
Thanks
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Oct 20, 2005
Christine the Pharmacist writes "Please pardon as I am not horribly advanced with SQL...
Using SQL Server 2000, Windows 2000, Service pack 4
I'm trying to figure out marketshares for "preferred" products. I have a table put together by hospital and month of medication use with the totals of each drug dispensed in columns as well.
(example table below)
Hospital Month Drug A Drug B Drug C Drug D
A 7 5 10 58 73
B 7 NULL 26 98 43
etc.
** Drug C and Drug D are the preferred drugs
I'm getting correct preferred % in all cases except when a value is NULL (result is NULL). I'm using an aggregate (sum), which should ignore NULLs, but it ignores NULLs within a column, and not ignoring across columns. I've tried setting concat_null_yields_null off and I'm still getting NULL (since I'm using the plus sign).
This is my admittedly confused select statement, suspect this is where my problem lies (problems with saying "sum", but using "+" as well?):
select a.Hospital,a.month,convert(float,sum(c.Drug_C+d.Drug_D))/convert(float,sum(a.Drug_A+b.Drug_B+
c.Drug_C+d.Drug_D)) as preferred_share
Thanks for any advice!"
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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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Aug 17, 2007
I've begun to get the above error from my package. The error message refers to two output columns.
Anyone know how this could happen from within the Visual Studio 2005 UI? I've seen the other posts on this subject, and they all seemed to be creating the packages in code.
Is there any way to see all of the columns in the data flow? Or is there any other way to find out which columns it's referring to?
Thanks!
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Dec 25, 2005
Hello,
I have a survey (30 questions) application in a SQL server db. The application uses several relational tables. The results are arranged so that each answer is on a seperate row:
user1 answer1user1 answer2user1 answer3user2 answer1user2 answer2user2 answer3
For statistical analysis I need to transfer the results to an Excel spreadsheet (for later use in SPSS). In the spreadsheet I need the results to appear so that each user will be on a single row with all of that user's answers on that single row (A column for each answer):
user1 answer1 answer2 answer3user2 answer1 answer2 answer3
How can this be done? How can all answers of a user appear on a single row
Thanx,Danny.
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Aug 5, 2014
I managed to transpose rows into columns.
;WITH
ctePreAgg AS
(
select top 500 act_reference "ActivityRef",
row_number() over (partition by act_reference order by act_reference) as rowno,
t3.s_initials "Initials"
from mytablestuff
order by act_reference
[code]...
But what I would love to do next is take each of the above rows - and return the initials either in one column with all the nulls and duplicate values removed, separated by a comma ..
ref, initials
Ag-4xYS
Ag-6xYS,BL
Ap-1xKW
At-2x SAS,CW
At-3x SAS,CW
OR the above but using variable number of columns based on the maximum number of different initials for each row.this is not strictly required, but maybe neater for further work on the view
ref, init1,init2
Ag-4xYS
Ag-6xYS,BL
Ap-1xKW
At-2x SAS,CW
At-3x SAS,CW
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Apr 9, 2007
Hello,
I have a table with say 45 columns.
I have a business requirement that requires me to fetch the rows for which col1 , col2, ....col 11 are same and rest can be different. there is an identity column, in the table so I can have duplicate rows also.
how can I effectively write a query that will fetch me all those rows for which my 11 columns are same.
Thanks,
Vishakha
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Jan 24, 2008
I have a report which is a list of items and I display everything about the item. It is great. My report table in the layout tab is simple. Header,Detail,Footer. Each Item has 65 columns. The number of items (rows) vary upon what you want to see. Example data.
Item#, Description, CaseSalePrice, Cost, BottleSalePrice, Discount
123, Grenadine, 100.00, 75.00, 15.50, 2.00
456, Lime Juice, 120.00, 81.00, 17.25, 2.00
There could be 1 item or 4000 items.
What I want to see is.
Item # - 123, 456
Description - Grenadine, Lime Juice
CaseSalePrice - 100.00, 120.00
Cost - 75.00, 81.00
BottleSalePrice - 15.50, 17.25
Discount - 2.00, 2.00
What I am actually doing is running this the top example and saving to excel. Then copying the sheet. Creating a new sheet then doing a paste special transpose and this gives the users what they want to see.
I want to grab that table object in the report layout tab and twist it 90degrees so the header is on the left, detail is in the middle and the footer is on the right. It would be perfect.
The dynamic column need is really the problem here. I never know how many items will be in the report. They all have the same basic information like description and pricing.
I am all out of creative ideas, any help would be appreciated.
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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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Nov 23, 2006
Hello,
I have a table T1 and on this table I have an insert trigger. In the trigger I need to check if T1.ID and T1.Type=’xyz’ together are duplicated or not (duplicate dhcek on two columns), if yes return error from trigger. There might be T1.ID and T1.Type=’abc’ duplicated, that is fine.
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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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