Transact SQL :: Remove Reverse Duplicates From Table
Sep 1, 2015
I have table with columns as ID, DupeID1, DupeID2. ID column is unique. DupeID1 and DupeID2 -- the combination should only be there once. I don't want reverse combination of duplicates, i.e. DupeID2, DupeID1 in the table. How can I delete the reverse duplicates from this table?
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Jan 29, 2008
Hi All
I have the dbo.OperatingHour It has many duplicates and I want to remove duplicates permanently
The statement below works but when I open the table there are no changes
Insert into OperatingHour(Weekdays, Wednesdays, Fridays,Saturdays, [Sundays/Public Holidays])
(SELECT DISTINCT Weekdays, Wednesdays, Fridays,Saturdays, [Sundays/Public Holidays] FROM OperatingHour)
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Dec 3, 2006
If we want to remove the duplicate row and leave only one row instead of 2 or 3 rows for example with the same column values.
2/ The same question but when all the columns of the row are duplicate except the id field.
Thanks a lot.
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Nov 2, 2015
INSERT
INTO [Table2Distinct]
([CLAIM_NUMBER]
,[ACCIDENT_DATE]
[code]....
I used the above query and it still inserts all the duplicate records. What is wrong with my statement?
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Jul 27, 2015
How would you differentiate duplicates in a table without deleting.
I have a table name ANGEL that contains duplicate value and i want to append a letter V to the duplicates instead of deleting them.
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Apr 17, 2012
I have a table for example like following
DECLARE @tmpTable table
(
name varchar(10),
address1 varchar(10),
phnno varchar(10),
mobno varchar(10)
)
INSERT INTO @tmpTable(name,address1,phnno,mobno)
[Code] ....
I want to remove all empty rows like row 1,2 and 3 in the above example.
I can't check all columns null values as there are many columns in my actual table.
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Jun 30, 2015
I have two linked tables from two different databases, there is a column "product" on each table however the product on one table has a Prefix so not a direct match. How can I join these tables ? In the query I have used product2: Replace([scheme_pos.product],"-B","") then tried Joining on product2 but it says JOIN not supported.
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Jan 9, 2008
I have a query which gives the following output, How can i get a output like this:
QUERY
COL1COL2COL3
A1AAGG
A1BBHH
A1CCJJ
B1DDKK
B1EELL
B1FFMM
OUTPUT
COL1COL2COL3
A1AAGG
BBHH
CCJJ
B1DDKK
EELL
FFMM
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May 24, 2007
Welcome,how can I alter following table in order to reduce neighbouringduplicates (symbol, position, quantity, price).Nr Symbol Position QuantityPrice Date1. wz9999b 1 1.02500.0 2007-05-09 08:09:42.6532. wz9999b 2 12.02500.0 2007-05-09 08:09:42.6533. wz9999b 1 100.02590.0 2007-05-10 15:47:04.1404. PZ0008VX 1 2280.8842090.55000000000022007-05-1612:43:12.4035. PZ0008VX 1 2280.8842102.05000000000022007-05-1612:45:27.4206. wz9999b 1 0.0012500.0 2007-05-18 09:47:16.0337. wz9999b 1 0.0012500.0 2007-05-18 09:47:53.2708. wz9999b 1 1.01.0 2007-05-22 12:35:07.8939. PZ0008VX 1 2280.8842102.05000000000022007-05-2409:38:26.16010. PZ0008VX 1 2280.8842102.05000000000022007-05-2409:38:38.80011. wz9999b 1 0.001 2500.02007-05-24 12:35:07.20712 wz9999b 1 0.002 2500.02007-05-24 12:35:14.98713. wz9999b 1 0.001 2500.02007-05-24 12:38:07.207In the result set I would like to get the rows number 6 and 10.Any suggestions??
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Sep 27, 2006
I have a situation where we get XML files sent daily that need uploading into SQL Server tables, but the source system producing these files sometimes generates duplicate records in the file. The tricky part is, that the record isn't entirely duplicated. What I mean, is that if I look for duplicates by grouping the key columns, having count(*) > 1, I find which ones are duplicates, but when I inspect the data on these duplicates, the other details in the remaining columns may differ. So our rule is: pick the first record, toss the rest of the duplicates.
Because we don't sort on any columns during the import, the first record kept of the duplicates is arbitrary. Again, we can't tell at this point which of the duplicated records is more correct. Someday down the road, we will do this research.
Now, I need to know the most efficient way to accomplish this in SSIS. If it makes it easier, I could just discard all the duplicates, since the number of them is so small.
If the source were a relational table, I could use a SQL statement to filter the records to remove the duplicates, but since the source is an XML file, I don't know how to filter these out in the pipeline, since the file has to be aggregated to search for dups.
Thanks
Kory
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Oct 2, 2006
DELETE
FROM tblContacts
WHERE tblContacts.ID IN(
SELECT F.ID
FROM tblContacts AS F
WHERE Exists (
SELECT email, Count(ID)
FROM tblContacts
WHERE tblContacts.email = F.email
GROUP BY tblContacts.email
HAVING Count(tblContacts.ID) > 1
)
)
AND tblContacts.ID NOT IN(
SELECT Min(ID)
FROM tblContacts AS F
WHERE Exists (
SELECT email, Count(ID)
FROM tblContacts
WHERE tblContacts.email = F.email
GROUP BY tblContacts.email
HAVING Count(tblContacts.ID) > 1
)
GROUP BY email
)
I readily admit that I've shamelessly copied 'n pasted this from a tutorial and then taken a stab at tweaking it for my own ends. But I really don't understand what it's doing.
Really, all I want to know is that it will remove records with duplicate email fields. But I could also do with confirming - looking at the "SELECT Min(ID)" bit - does that mean that if it finds a duplicate, it'll delete the latest-added one? And if so, that changing it to remove the earliest-added one is simply a case of changing MIN to MAX?
Thanks :)
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Oct 6, 2015
I am working with a bunch of records that have duplicates on the Persid and the intPercentID where there are duplicates I want to remove when I stick them in the temp table, I tried join on tempo table and doing not exists but still inserts, so now I am trying a merge but same thing. how can I keep duplicates from being inserted in the temp table. I made a cursor as well but its slow as heck, but it does work. trying better ways.
Create table #TempStr (STRId int not null Identity(1,1) primary key, Persid int, percentId int, dtCreated datetime, CreatedBy int)
Create table #NewStr (STRId int, Persid int, percentId int, dtCreated datetime, CreatedBy int)
INSERT #TempStr (Persid, percentId, dtCreated, CreatedBy)
select intPersonnelID, intPercentID, dtSubmitted, intSubmittedBy from tblSTR
whereintpercentId in (61,62) group by intPercentID, intPersonnelID, dtSubmitted, intSubmittedBy
UNION ALL
[code]....
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Jul 13, 2015
I have 2 tables below:
Table 1:
Product No Quantity
A 1
B 2
C 3
Table 2:
Product No Grade Quantity
A Good
A Normal
A Bad
B Good
B Bad
C Good
C Normal
C Bad
In Table 2, Product No divided by Grade. I want to lookup the Quantity from Table 1 to Table 2. The same Product No will have 1 value, the other value is 0. The result for Column Quantity should be like this:
Table 2:
Product No Grade Quantity
A Good 1
A Normal 0
A Bad 0
B Good 2
B Bad 0
C Good 3
C Normal 0
C Bad 0
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Jan 22, 2015
I have a table containing the following data:
LinkingIDID1 ID2
166202180659253178
166202253178180659
166334180380253179
166334253179180380
166342180380180659
166342180659180380
166582253179258643
166582258643253179
264052258642258643
264052258643258642
264502258643258663
264502258643259562
Within the LinkingID, there are duplicates in ID1 and ID2 but just in opposite columns. I have been trying to figure out a way to remove these set based. It doesn't matter which duplicate is removed. Essentially these are just endpoints and I don't care which side they are on. The solution must recognize the duplicates and not just remove based on every 2nd row.
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Aug 11, 2015
I have a bunch of contacts that I've scored how well their names match to other contacts in the same business. I can programmatically figure out how to parse the results, but would like to know how to do this via SQL. My problem is for Business_fk 968976 I have 7 contacts. In the end I should have 4 contacts based on name match. For the business key listed Gerardo Lopez is in the ContactScore table twice for Contact keys 7355719 and 57028145. I then have two rows like so:
PossibleBusinessContactMatch_pk BusinessContact_fk Business_fk BusinessContactMatch_fk MatchTypeCode MatchScore MatchRank FirstName LastName Phone Email
------------------------------- ------------------ ----------- ----------------------- ------------- ----------- ----------- -------------------------------------------------- -------------------------------------------------- ---------- --------------------------------------------------------------------------------------------------------------------------------
1772960 57028145 968976 7355719 C 46 1 GERARDO I LOPEZ 8162214000
838834 7355719 968976 57028145 C 50 1 GERARDO
Each reference each other, and 2 is a good case, a more difficult case would have key 1 listed 10 times showing a ContactMatch_fk of 2 - 11, and then Contact_fk 2 listed 10 times with a ContactMatch_fk of 1, 3-11.I know 57028145 maps to 7355719 from the first row in the ContactScore table, so when Contact_fk of 7355719 comes up I should be able to skip it and not process that match. Hopefully that makes sense. Anyway here is the test data:
IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[ContactScore]') AND type in (N'U'))
DROP TABLE [dbo].[ContactScore];
GO
CREATE TABLE [dbo].[ContactScore]
(
[ContactScore_pk]INT NOT NULL,
[Contact_fk]INT NOT NULL,
[code]..
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Apr 23, 2015
How can i perform this task with ssis OR TRANSACT SQL? I HAVE THESE ROWS WITH THE NEXT DATA, I want to take just the valid one, BUT I HAVE A LOT OF COMBINATIONS AS following names, it can be animals, things or personal names
GABRIEL OBANDO --CORRECT
GABRIEL OVANDO
Gavriel OVANDO
gAbriel OBANDO
GABRIE OBANDO
Gabri OBONDA
MANAGUA --CORRECT
NANAGUA
NAMAGUA
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Oct 15, 2006
Im working through the MS example of "removeDuplicates". I cant seem to figure out how to add custom property for input column.
I added the helper method:
private static void AddIsKeyCustomPropertyToInput(IDTSInput90 input, object value)
{
IDTSCustomProperty90 isKey = input.CustomPropertyCollection.New();
isKey.Name = "IsKey";
isKey.Value = value;
}
I call it from:
public override void ProvideComponentProperties()
{
//...
AddIsKeyCustomPropertyToInput(input, false);
//...
}
public override void ReinitializeMetaData()
{
IDTSInput90 input = ComponentMetaData.InputCollection[0];
if (input.CustomPropertyCollection.Count == 0)
{
AddIsKeyCustomPropertyToInput(input, false);
}
// ...
}
However when I deployed it and added the component to SSIS package - I cant see the Custom Column "IsKey" in the input column properties window.
What am I missing - please help
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Sep 9, 2004
Hello All,
We all were new at one point.... any help is appreciated.
Objective:
Combining two 49,000 row tables and remove records where there is only 1 column difference. (keeping the specified column value removing the one with a blank.)
Reason:
I have 2 people going through a list, coding a specific column with a single letter value. They both have different progress on each sheet. Hence I am trying to UNION them and have a result of their combined efforts without duplicates.
My progress/where I'm stuck:
Here is my first query/union:
SELECT * FROM [Eds table]
UNION SELECT * FROM [Vickis table];
As shown above, I have unioned these 2 tables and my results removed th obvious whole record duplicates, but since 1 column is different on these, a union without criteria considers them unique.....
an example of duplicates that I must remove are as follows:
142301 - Product 5000 - 150# - S (Keep)
142031 - Product 5000 - 150# - "" <--- Blank (Remove)
I am trying to run another query on my first query results so I don't mess my first query up. Here it is:
SELECT DISTINCT [Prod #], [Prod Name], [Prod Description], [Product Type]
FROM [Combined Tables]
WHERE [Product Type]<>" ";
Please Help! Thank you in advance.
--------------------
5 minutes away from pulling my last one!
BaldNAskewed
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Jun 23, 2015
I had Excel file input & import to DB Table by using Data flow in SSIS.but it had duplicates so I dont use the Dupe Records
So I planned like below:
Method 1:
Here OLEDB Destination are Good Records(Without Duplicates)
OLEDB Destination are Not Good Records(only Duplicates)
or
Method :2
If I add a column(GOOD_RECORD) in DB Table and Should I update '1' for top 1 record (for Good Record) and remaining as '0' for other Records (for Dups)latter I utilize Through flag of GOOD_RECORD
i.e.,, select * from DB_TABLE where GOOD_RECORD='1' .
I think that Method :2 Advisable for Performance/flexible but Here How can I update by using SSIS(Data flow) ????
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Jun 22, 2015
I have some duplicate values for my query results, about 200 duplicates out of 30000 rows. Of these 200 duplicates I want to keep the ones that have a higher value for... 'UpdatedBatchID'.
SELECT
IR.Id as 'ID'
, CAST(IR.Priority as varchar) as 'Priority'
, IRSupportGroupDN.DisplayName as 'Support Group'
, DATEADD(MI,DATEDIFF(mi,GETUTCDATE(),GETDATE()),IR.CreatedDate) as 'Created Date'
, DATEADD(MI,DATEDIFF(mi,GETUTCDATE(),GETDATE()),IR.ResolvedDate) as 'Resolved Date'
, SLOConfig.DisplayName as 'SLO'
, DATEADD(MI,DATEDIFF(mi,GETUTCDATE(),GETDATE()),SLOFact.TargetEndDate) as 'SLO Target'
, SLOStatusDN.DisplayName as 'SLO Status'
, SLOMetric.DisplayName as 'SLO Metric'
, SLOFact.UpdatedBatchId as 'UpdatedBatchID'
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Feb 29, 2008
What happens when you add the Ignore Case flag into the mix?
I'm having a hell of a time - I'm dealing with an SCD situation using TableDifference component and I have both existing dimensions and new data coming in, each go through identical Case-Insensitive/Sort with remove duplicates, but I'm getting identical new and deleted records detected - I think because of ordering issues. I'm still trying to whittle the test case down, but I think data from all around the records I'm investigating seems to get sorted in between them, so I'm having trouble getting a small test case built.
I think the mixed case data is the root of the problem, and I think the design is bad, but before I go back to the technical lead, I need to understand enough to show that you cannot take two pipelines sorted and de-duped case-insensitively and then do a case-sensitive table difference operation.
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Oct 27, 2015
I have a table that has Serial numbers and MSDSID numbers and many other fields in the table.
What I need to figure out is if the table contains a distinct Serial number with different MSDSIDs.
So If I have in the table
Serial MSDSID Date Size...
001 20 1/1/2015 5
002 21 1/1/2015 3
001 22 2/1/2015 1
003 21 3/1/2015 1
004 23 1/15/2015 5
003 22 1/20/2015 6
004 23 2/21/2015 5
002 21 4/25/2015 4
I would like the results to show:
Serial Count
001 2 the count is 2 because Serial 001 has an MSDSID of 20 and 22
002 1 the count is 1 because Serial 002 only has MSDSID 21
003 2 the count is 2 because Serial 003 has an MSDSID of 21 and 22
004 1 the count is 1 because Serial 002 only has MSDSID 23
It would be even better if the results just showed where the count is greater than 1.
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May 6, 2015
I'm trying to pull records from a source/staging table where there is a duplicate row in it.I don't need that as the requirement is to garbage in /garbage out.when I do that from mart and use joins btw fact and dimensions, Im not getting this duplicate record as Im using distinct/group by. If I removed it, then it returns more than 3000 rows which is not correct. Is there a way I can keep these duplicates without removing group by...Im using correct joins and filters.
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Jun 8, 2015
I am doing some audit and i have below query, how can i get rid of duplicates from the below query any T SQL to get rid of duplicates...
I am using SP_Who2 and sql server Audit for auditing all data happening on sql server databases and dumping them to tables Audit_DBAudit abd Audit_sp_who2 and from then i am trying to get data which is not repeating/duplicate ...
SELECT
A.ProgramName
,a.HostName,[Server_principal_name],[Server_instance_name],[Database_name],[Object_name],F.Statement
FROM Audit_DBAudit as F
Join [Audit_sp_who2] AS a
on LTRIM(RTRIM(F.server_principal_name))=LTRIM(RTRIM(A.Login))
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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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Oct 26, 2015
I have a table that exists of Serial, MSDSID and other fields.
What I need to check is to see if there are Serial numbers that multiple MSDSID numbers.
So if I have
Serial MSDSID
001 23
002 24
003 25
004 23
005 26
006 24
The results would be
Serial MSDSID Count
001 23 2
004 23 2
002 24 2
006 24 2
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Jun 2, 2015
I have an existing stored table with duplicate rows that I want to delete.Using a cte gives me
WITH CTE AS
(
SELECT rn = ROW_NUMBER()
OVER(
PARTITION BY employeeid, dateofincident, typeid, description
ORDER BY Id ASC), *
FROM dbo.TableName
)
DELETE FROM cte
WHERE rn > 1
This is what I want to do basically. But this is only deleting in my CTE, is there anyway I can update my existing table "TableName" with this, without using temp tables?
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Nov 18, 2015
I need to make a selection on join datasets with 2 conditions and populate the results in another dataset(Report).It is working with the fist condition "AccountingTypeCharacteristicCodeId = 3"...
INSERT INTO SurveyInterface.tblLoadISFNotification (OperatingEntityNumber, SDDS, SurveyCodeId, QuestionnaireTypeCodeId, ReferencePeriod, DataReplacementIndicator, PrecontactFlag, SampledUnitPriority)
SELECT ISF.OperatingEntityNumber
,[SDDS]
,[SurveyCodeId]
,[QuestionnaireTypeCodeId]
,[ReferencePeriod]
,[DataReplacementIndicator]
[code]....
Know I also want to add in that new dataset(report) all the duplicates of concatenated variables
ISF.OperatingEntityNumber/ISF.QuestionnaireTypeCodeId
GROUP BY ISF.OperatingEntityNumber, ISF.QuestionnaireTypeCodeId
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Nov 20, 2015
I have this 40,000,000 rows table... I am trying to clean this 'Contacts' table since I know there are a lot of duplicates.
At first, I wanted to get a count of how many there are.
I need to compare records where these fields are matched:
MATCHED: (email, firstname) but not MATCH: (lastname, phone, mobile).
MATCHED: (email, firstname, mobile)
But not MATCH: (lastname, phone)
MATCHED: (email, firstname, lastname)
But not MATCH: (phone, mobile)
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Nov 25, 2015
i had a query for generating full address from add1,add2,add3 fields.
declare @temp table
(ADDR1 varchar(10),
ADDR2 varchar(10),
ADDR3 varchar(10)
[code]....
but still i am getting ',' for second record as u seen when ADD1 is null.so how can i remove that comma','
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Aug 3, 2015
I'm getting data from a flat file and there is space before few values. I'm unable to remove that space through replace or LTRIM. How to remove these spaces.For E.g.
Values
' 2356'
' 1'
' 23'
' ABCD'
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Sep 25, 2015
I have a table contain ProductMaster and it is using in multiple table like sales,purchase,inventory,production and many of other tables. i want delete all product which are not using in any child table.
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Aug 26, 2011
i have a data base sql Server .I wrote a stored procedure or attach my database but it is attached in read only mode how can remove read-only.
this is my stored procedure.
create procedure attache
as
declare @trouvemdf int
declare @trouveldf int
if exists (select name from sysdatabases where name='Gestion_Parc')
[Code] ....
i try this EXEC sp_dboption 'Gestion_Parc', 'read only', 'FALSE' but it causes those error
Msg 5120, Level 16, State 101, Line 1
Unable to open the physical file "C: Gestion_Parc.mdf". Operating system error 5: "5 (Access is denied.)".
Msg 5120, Level 16, State 101, Line 1
Unable to open the physical file "C: Gestion_Parc_log.ldf". Operating system error 5: "5 (Access is denied.)".
Msg 945, Level 14, State 2, Line 1
[Code] ....
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