How Do I Find Duplicates In A Table.
Apr 15, 2008
Hi,
I have table which stores the fund name and its data. We get quarterly information from the fund co. Suppose if the user wants to add a fund thats not in our database we let then add a ClientFundId and a FundName. But may be after sometime the fund company may add that fund in the next quarter.. So how do i get rid of Duplicated Data..
In the ClientFundId column we can a 9 letter Aplhanumeric or a 5 letter character but if the fund co.. provides those values the 5 letter characters are stored in Ticker column and the 9 letter words are stored in Cusip column.. So i just wrote this query hoping i could retrieve the duplicate values but it didnt list any..but i found one this is my query..
Select
FundId,
Cusip,
Ticker,
ClientFundId,
FundName,
ShortName
From Fund
Where
ClientFundId = Ticker
or
ClientFundId = Cusip
Any help will appreciated
Thanks
Karen
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Dec 11, 1999
does someone have a querry to display the duplicate records in a table.
Table:
zipcode dma
My data upload is failing because there is a primary key on zipcode and the source data (42k records) has about 50 duplicate zipcode records in it. It is possible that there is a unique combo of zipcode / dma but I need to identify the duplicate records to determine that.
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May 28, 2008
I have this script bellow which does what it is supposed to. However it only outputs the cust_id. I want it to show all the columns in the table. How would I do this?
SELECT cust_id
FROM cust_table
WHERE cust_name in ('Billy','John') and rownum < 100
GROUP BY cust_id
HAVING COUNT(*) > 1;
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Nov 2, 2015
I am having a main table and temptable.
Every sunday, new data will be loaded from temptable to main table. I have to make sure that, duplicates does not get loaded from temptable to maintable.
For example, if last sunday a record gets loaded from temp to main. If this sunday also the same record is present then it means that is a duplicate.
The duplicate is decided on below scenario
select 'CodeChanges: ', count(*) from CodeChanges a, CodeChanges_Temp b
where a.AccountNumber = b.AccountNumber and
a.HexaNumber = b.HexaNumber and
a.HexaEffDate = b.HexaEffDate and
a.HexaId = b.HexaId and
[Code] ...
Yesterday (Sunday) , data from temp got loaded onto maintable but with duplicates.
There is a log which just displays number of duplicates.
Yesterday the log displayed 8 duplicates found. I need to find out the 8 duplicates which got loaded yesterday and delete it off from main table.
There is a column in both tables which is 'creation date and time'. Every Sunday when the load happens this column will have that day's date .
Now i need to find out what are all the duplicates which got loaded on this sunday.
The total rows in temp table is : 363
No of duplicates present is : 8
I used below query to find out the duplicates but it is returning all the 363 rows from the maintable instead of the 8 duplicates.
Select 'CodeChanges: ', * from CodeChanges a where
exists
( Select 1 from CodeChanges_Temp b where
a.HexaNumber = b.HexaNumber and
a.HexaEffDate = b.HexaEffDate and
[Code] ...
Need finding the duplicate records which has creation date time as '2015-11-01 00:00:00.000' and all the above columns mentioned in the query matches.
Example
Few colums only metioned below
creationdateandtime HexaNumber HexaCode
1. 1987-10-01 00:00:00.000 5 3
2. 2015-11-01 00:00:00.000 5 3
So here the second record is duplicate. This is what I am trying to find.
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Jul 19, 2004
Hi
I am trying to find when a name has been entered more than once into 1 database table.
I'm currently doing something like this (can't remember exactly, not at work)
SELECT COUNT(*) AS Cnt, Name
FROM tblTable
GROUP BY Name
ORDER BY Cnt Desc
This brings back all the Names in the database and tells me which are duplicates but I want to just have the results of the duplicate values and not the single values.
Hope you can help.
Thanks
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Aug 8, 2007
Hi everybody I need help on finding duplicates and deleting the duplicate record depending on name and fname , deleting the duplicates and leaving only the first one.
my PERSON table is this below:
ID name fname ownerid id2
1 a b
2 c c
3 e f
4 a b 1 10
5 c c 2 11
I have this query below that returns records 1 and 4 and 2 and 5 since they have the same name and fname
select * from ( Select name ,fname, count(1) as cnt from PERSON group by
name,Fname ) where cnt > 1
ID name fname ownerid id2
1 a b
4 a b 1 10
2 c c
5 c c 2 11
With this result I need to delete the second record of each group but update the first records with the ownerid and id2 of the second record that would be deleted... I don't know how to proceed with this..
thanks
alex
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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...
001Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 20Â Â Â Â Â Â Â Â Â Â Â Â 1/1/2015Â Â Â Â Â Â Â 5
002Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 21Â Â Â Â Â Â Â Â Â Â Â Â 1/1/2015Â Â Â Â Â Â Â 3
001Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 22Â Â Â Â Â Â Â Â Â Â Â Â 2/1/2015Â Â Â Â Â Â Â 1
003Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 21Â Â Â Â Â Â Â Â Â Â Â 3/1/2015Â Â Â Â Â Â Â 1
004Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 23Â Â Â Â Â Â Â Â Â Â Â 1/15/2015Â Â Â Â Â Â 5
003Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 22Â Â Â Â Â Â Â Â Â Â Â Â 1/20/2015Â Â Â Â Â 6
004Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 23Â Â Â Â Â Â Â Â Â Â Â 2/21/2015Â Â Â Â Â Â 5
002Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 21Â Â Â Â Â Â Â Â Â Â Â 4/25/2015Â Â Â Â Â 4
I would like the results to show:
Serial           Count
001Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â Â the count is 2 because Serial 001 has an MSDSID of 20 and 22
002Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1Â Â Â Â Â Â Â Â Â Â Â the count is 1 because Serial 002 only has MSDSID 21
003Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â Â Â the count is 2 because Serial 003 has an MSDSID of 21 and 22
004Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 1Â Â Â Â Â Â Â Â Â Â 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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Sep 26, 2014
I have this query below that I created to do a count, but I don't think this is what I needed.
I need to find the duplicates. Example, if
CLI_ID1 12345 has 4 CLIP records, each CLIP record should have a different CLIP rank. I need to find scenarios where 2 (or more) of the CLIP records have the same CLIP RANK. If there are duplicate CLIP_RANKs within the same CLI_ID,
Select Distinct
cli_id1, count(clip_rank) countrank
FROM impact.dbo.CLI
LEFT JOIN impact.dbo.CLIO ON CLI.CLI_ID1 = CLIO.clio_id1
left join
impact.dbo.clip ON cli_id1 = clip_id1
Where (clio_trm = '' or clio_trm = NULL or clio_trm is null)
group by cli_id1
order by cli_id1
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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
001Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 23
002Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 24
003Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 25
004Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 23
005Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 26
006Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 24
The results would be
Serial            MSDSID          Count
001Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 23Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2
004Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 23Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2
002Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 24Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2
006Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 24Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2
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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]
     Â
[code]....
Know I also want to add in that new dataset(report) all the duplicates of concatenated variables
ISF.OperatingEntityNumber/ISF.QuestionnaireTypeCodeIdÂ
GROUP BY ISF.OperatingEntityNumber, ISF.QuestionnaireTypeCodeId
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Aug 22, 2007
My basic situation is this - I ONLY want duplicates, so the oppositeof DISTINCT:I have two tables. Ordinarily, Table1ColumnA corresponds in a one toone ratio with Table2ColumnB through a shared variable. So if I queryTableB using the shared variable, there really should only be onrecord returned. In essence, if I run this and return TWO rows, it isvery bad:select * from TableB where SharedVariable = 1234I know how to join the tables on a single record to see if this is thecase with one record, but I need to find out how many, among possiblymillions of records this affects.Every record in Table1ColumnA (and also the shared variable) will beunique. There is another column in Table1 (I'll call itTable1ColumnC) that will be duplicated if the record in Table2 is aduplicate, so I am trying to use that to filter my results in Table1.I am looking to see how many from Table1 map to DUPLICATE instances inTable2.I need to be able to say, in effect, "how many unique records inTable1ColumnA that have a duplicate in Table1ColumnC also have aduplicate in Table2ColumnB?"Thanks if anyone can help!-- aknoch
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Aug 11, 2014
I have a patient record and emergency contact information. I need to find duplicate phone numbers in emergency contact table based on relationship type (RelationType0 between emergency contact and patient. For example, if patient was a child and has mother listed twice with same number, I need to filter these records. The case would be true if there was a father listed, in any cases there should be one father or one mother listed for patient regardless. The link between patient and emergency contact is person_gu. If two siblings linked to same person_gu, there should be still one emergency contact listed.
Below is the schema structure:
Person_Info: PersonID, Person Info contains everyone (patient, vistor, Emergecy contact) First and last names
Patient_Info: PatientID, table contains patient ID and other information
Patient_PersonRelation: Person_ID, patientID, RelationType
Address: Contains address of all person and patient (key PersonID)
Phone: Contains phone # of everyone (key is personID)
The goal to find matching phone for same person based on relationship type (If siblings, then only list one record for parent because the matching phones are not duplicates).
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Nov 2, 2015
INSERT
INTO [Table2Distinct]Â Â Â Â Â Â Â Â
([CLAIM_NUMBER]Â Â Â Â Â Â Â Â
,[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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Oct 22, 2014
I have a table with 22 million Business records. I can see that there are duplicates when I group by BusinessName and Address and Phone. I'd like to place only the duplicates into a table, with a ranking, oldest business key gets a ranking of 1.
As a bonus I'd like each group to have a distinct group name (although not necessary, just want to know how to do this)
Later after I run more verifications to make sure these are not referenced elsewhere I'll delete everything with a matchRank > 1 out of the main Business table.
DROP TABLE [dbo].[TestBusiness];
GO
CREATE TABLE [dbo].[TestBusiness](
[Business_pk] INT IDENTITY(1,1) NOT NULL,
[BusinessName] VARCHAR (200) NOT NULL,
[Address] VARCHAR(MAX) NOT NULL,
[code]....
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Mar 24, 2004
hi, what is a good way to kill the duplicates from a table. when i say killing duplicated, i mean killing all the rows for the repeated row.
WorkTempID ItemNo Seq
100196 RTP-22 1
100197 RTP-22 2
100198 RTP-22 3
100199 RTP-22 3
100200 RTP-22 4
100201 RTP-22 4
100202 RTP-22 5
100203 RTP-22 5
********************************************************
see how Seq 3, 4 and 5 are repeated? so for the output i want.
WorkTempID ItemNoSeq
100196RTP-221
100197RTP-222
********************************************************
i DO NOT want this as the output. i already know how to achive this using DISTINCT keyword
WorkTempID ItemNoSeq
100196RTP-221
100197RTP-222
100198RTP-223
100200RTP-224
100203RTP-225
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Mar 21, 2014
The database has Name,Email, and skill. Though the name is distinct it is repeated as it has different skills. I would like to remove duplicate names and add the corresponding skill to the only one row.
From the stored procedure, combining 3 tables I got the output as:
NameemaildepartmentSkill
ArunemailidTech teamTechnical
ArunemailidTech teamLeadership
ArunemailidTech teamDecision Making
BinayemailidMarketingTechnical
BinayemailidMarketingDecision Making
I would like to remove the duplicate Name fields and combine the Skill in a single row as other fields are same.
So the output should be
NameemaildepartmentSkill
ArunemailidTech teamTechnical, Leadership, Decision Making
BinayemailidMarketingTechnical,Decision Making
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Aug 6, 2014
how i can check for duplicate entries for example if a serial number has already been inputted and a user tries to input the same serial number.. how can i get a trigger or some sort to check for duplicates and then prompt that the number has already been entered.
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Aug 7, 2014
Im trying to look for duplicates in a table field.. field name is alphanumericCol and table is a user defined table...This is my trigger:
ALTER TRIGGER [dbo].[DUPLICATES]
ON [dbo].[AMGR_User_Fields_Tbl]
FOR INSERT, UPDATE
AS
DECLARE @Alphanumericcol VARCHAR (750)
-- This trigger has been created to check that duplicate rows are not inserted into table.
-- Check if row exists
SELECT @Alphanumericcol
FROM Inserted i, AMGR_User_Fields_Tbl t
WHERE t.AlphaNumericCol = i.AlphaNumericCol
AND t.Client_Id = i.Client_Id
-- (@Alphanumericcol = 1)
-- Display Error and then Rollback transaction
BEGIN
RAISERROR ('This row already exists in the table', 16, 1)
ROLLBACK TRANSACTION
END
The result i get is, if i input a duplicate number it fills in a null in the field so my question is how do i get it to tell me its duplicate and let me insert a new one
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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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Mar 11, 2006
I need help flagging duplicate records in ome tables I have.For example if I have Table1 which conatins Field1, Field2 and Field3like belowField1 Field2 Field3 Field4Paul 18 Null NullPaul 18 Null NullJohn 19 Null NullHow would I;1. put a 'Y' in Field3 to mark the two records which are duplicates.2. put a 'Y' in Field4 to mark ONLY ONE of the duplicate records.Regards,Ciarán
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Jul 20, 2005
There is a table with a single column with 75 rows - 50 unique / 25duplicates. How would pull back a list of the rows that have/areduplicates?This is a question that I got in an interview. I didn't get it,obviously....Thanks,Tim
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May 18, 2012
I have a very large table that can contain up 3 to 5 duplicate records. Every month around 100,000 new records come in. Sometimes it's an ammended record, other times is just duplicated by error.
Is it possible to keep the latest record dumped into the table and delete the others? Does SQL track the order of the data being dropped into the table?
The layout would look like this. There are 10-15 other columns in the table where adjustments can also be made.
Lease# Year Month Production
12345 2008 10 1,231
12345 2008 10 1,250
12345 2008 10 1,250
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Aug 13, 2013
Table Design --> Componenet (table name)
ID.
Country ID
BT-ID
Component
Activation
I need to delete the duplicate values from Componenet table
ID CountryID BT-ID Componenet Activation
A3CD GD58 TR77 RX 1
BER2 GD58 TR77 RX 1
XEW7 GD58 TR77 MX 1
O4T4 GD58 TR77 MX 1
PE78 GD58 TR77 GX 1
Expected Output
ID CountryID BT-ID Componenet Activation
A3CD GD58 TR77 RX 1
XEW7 GD58 TR77 MX 1
PE78 GD58 TR77 GX 1
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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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Jun 15, 2007
How do I only select rows with duplicate dates for each person (id)? (The actual table has approximately 13000 rows with approximately 3000 unique ids)
p_key id date pulse
--------------------------------------
1 32 5/25/2006 80
2 32 5/25/2006 85
3 32 4/26/2006 81
4 32 6/15/2006 82
5 15 1/20/2006 75
6 15 3/25/2006 80
7 15 3/25/2006 83
Result table I am looking for:
p_key id date pulse
------------------------------------
1 32 5/25/2006 80
2 32 5/25/2006 85
6 15 3/25/2006 80
7 15 3/25/2006 83
Thanks.
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Jul 23, 2005
Hiya everyone,I have two tables in SQL 2000. I would like to append the contents ofTableA to TableB.Table A has around 1.1 Million Records.Table B has around 1 Million Reocords.Basically TableA has all of the data held in TableB plus 100,000additional records. I would only like to import or append these newadditional records. I have a unique index already setup on Table B.Any ideas pretty pretty please?Paul.Ps. (Have been messing around with DTS but get a unique violation error- Which is kinda what I want I guess, but would like SQL to ignore theerror and only copy the new data - if only)
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May 15, 2015
I have a table with call data (ContactID, Queues Entered, Call Status, Date & Time Stamps etc). Each entry relating to a contact ID goes onto a new row. The first row for a contact is the date and time it is created. It then captures the queue (or queues) it enters before it is answered. Finally, it captures when the call is released (Completed).
I'm trying to link all this data into one single row per contact ID to make it easier to report on.
I started off by using DISTINCT to pull back all of the Contact ID's. I then used a Left Join to pull back the date and time of creation. I created a further Left Join to pull back the first queue that it entered and so on.
When I did this, I started getting duplicates. This is because some calls enter more than one queue.
How can I do this so that it only has one ContactID per row. Also, for the Queue, is there anything I can do to ensure it pulls back the first Queue it enters? (These are time stamped). Subsequently, I would then need to add the second and third queue it enters in other columns. (A call can enter a maximum of 3 queues).
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Jun 12, 2008
I have 3 database say
db1
db2
db3
I need to setup a script to read all the table names in the database above and then query the database to find the list of Stored Procedure using each table.(SQL Server)
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Apr 26, 2005
(i am not sure which forum to post this too)
Hi, I imported a table onto my host's server, table_Login which has username password, and userID. userID is Primary Key & identity.
When I had my code do insert of new user, I was getting error the Login.userID doesn't allow null values. Which shouldn't have mattered because userID is an identity.
After making a diagram from Enterprise Manager, I noticed that I have two Login tables (although only one shows in Enterprise Manager's "Table" node view. The second table, which had none of the constraints that my table of the same name which is listed under the "Table" node does; appears to be the table which is being written to by my code.
I can't find this table, Login(dbo), through Enterprise Manager, nor am i sure how to access it through Query Analyzer. Needless to say, I don't like this arrangement. and well tech support for this host seems to leave a lot to be desired.
Anyone know what needs to be done so that I can fix it or fight with tech support to convince them that they should?
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Feb 11, 2006
HiOur product uses MS-SQL Server 2000. One of our customer has 10installations with each installation stroring data in its own database.Now the customer wants to consolidate these databases into one and wealready have plan for that by consolidating one DB at a time. But firstthey want to find how many unique or duplicate entries they have acrossall the 10 databasesAssumptions:1. All the databases reside on the same server. (This is just anassumption, not the real environment at customer site)2. Databases can not be merged before it is found how many unique orduplicate rows exist.Table under consideration:Message(HashID PK,....)# of rows in Message table in each of databases: 1 MillionHere is my question: How can I find how many unique or duplicateentries they have across all the 10 databases. I easily find uniquerows for two databases with a query like this:SELECT COUNT(A.HasID) FROM db1.dbo.Message A LEFT OUTER JOIN ONdb2.dbo.Message B ON A.HashID = B.HashID WHERE B.HashID IS NULLHow can I do this for 10 databases. This will require factorial of 10queries to solve this problem.I will appreciate if someone can provide hint on this.RegardsAK
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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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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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May 20, 2015
Assuming I have a table similar to the following:
Auto_ID Account_ID Account_Name Account_Contact Priority
1 3453463 Tire Co Doug 1
2 4363763 Computers Inc Sam 1
3 7857433 Safety First Heather 1
4 2326743 Car Dept Clark 1
5 2342567 Sales Force Amy 1
6 4363763 Computers Inc Jamie 2
7 2326743 Car Dept Jenn 2
I'm trying to delete all duplicate Account_IDs, but only for the highest priority (in this case it would be the lowest number).
I know the following would delete duplicate Account_IDs:
DELETE FROM staging_account
WHERE auto_id NOT IN
(SELECT MAX(auto_id)
FROM staging_account
GROUP BY account_id)
The problem is this doesn't take into account the priority; in the above example I would want to keep auto_ids 2 and 4 because they have a higher priority (1) than auto_ids 6 and 7 (priority 2).
How can I take priority into account and still remove duplicates in this scenario?
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