I need help flagging duplicate records in ome tables I have.
For example if I have Table1 which conatins Field1, Field2 and Field3
like below
Field1 Field2 Field3 Field4
Paul 18 Null Null
Paul 18 Null Null
John 19 Null Null
How 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
Hi,
I need to delete ONLY the duplicate rows from a table..Can anyone suggest me a way to do that thing..i used the query..
"Delete from <TableName> where SlNo IN ( Select SlNo from <TableName> group
by SlNO having Count(*) > 1)"
The resultant is all the original rows also getting deleted with the duplicates..anyone please help me out..
Thank you in advance
Rani
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
All,
I have a situation where I need to identify redundant rows within a table. Here is the schema of the table:
create table Temp.Response (
TempKey int identity(1,1) not null primary key clustered,
ResponseId char(27) not null,
StudentUin char(9) not null,
TemplateId char(27) not null,
MidEndFlag char(3) not null
)
Here is a sample dataset that represents the production data:
TempKey | ResponseId | StudentUin | TemplateId | MidEndFlag
1 2008-02-12-08-10-43-3434648 317003316 2008-01-31-10-12-27-4882454 Mid
2 2008-02-12-08-11-40-5279829 317003316 2008-01-31-10-12-27-4882454 Mid
3 2008-02-11-21-29-12-1254611 516007344 2008-01-31-10-32-26-2359751 Mid
4 2008-02-11-21-30-34-7326988 516007344 2008-01-31-10-32-26-2359751 Mid
5 2008-02-11-21-31-24-2804312 516007344 2008-01-31-10-32-26-2359751 Mid
6 2008-02-11-21-31-47-1742947 516007344 2008-01-31-10-32-26-2359751 Mid
7 2008-02-11-18-52-25-3689636 614001463 2008-01-31-10-32-26-2359751 Mid
8 2008-02-11-18-54-11-7500029 614001463 2008-01-31-10-32-26-2359751 Mid
9 2008-02-11-22-13-59-9139208 614001606 2008-01-31-10-32-26-2359751 Mid
10 2008-02-11-22-14-50-5822454 614001606 2008-01-31-10-32-26-2359751 Mid
11 2008-02-11-22-15-47-6257351 614001606 2008-01-31-10-32-26-2359751 Mid
12 2008-02-11-23-23-31-4431851 614001756 2008-01-31-10-32-26-2359751 Mid
13 2008-02-11-23-24-06-4806990 614001756 2008-01-31-10-32-26-2359751 Mid
I need to identify the ResponseId values for rows that contain redundant StudentUin/TemplateId/MidEndFlag values, so that I can delete those rows. ResponseId, while not the primary key, is a unique value in this dataset. I thought I might use a cursor to parse this, but the real dataset is exceedingly large, and would like a set-based solution.
Best,
B.
How to find out that a table has changed. For example if a table has 50K rows, and if any update, insert, or delete was made it should be captured without using any trigger. Is it possible to get such information from any of the system table or DMVs?
View 13 Replies View Relatedany useful SQL Queries that might be used to identify lists of potential duplicate records in a table?
For example I have Client Database that includes a table dbo.Clients. This table contains various columns which could be used to identify possible duplicate records, such as Surname | Forenames | DateOfBirth | NINumber | PostalCode etc. . The data contained in these columns is not always exactly the same due to differences caused by user data entry; so some records may have missing data from some of the columns and there could be spelling differences too. Like the following examples:
1 | Smith | John Raymond | NULL | NI990946B | SW12 8TQ
2 | Smith | John | 06/03/1967 | NULL | SW12 8TQ
3 | Smith | Jon Raymond | 06/03/1967 | NI 99 09 46 B | SW12 8TQ
The problem is that whilst it is easy for a human being to review these 3 entries and conclude that they are most likely the same Client entered in to the database 3 times; I cannot find a reliable way of identifying them using a SQL Query.
I've considered using some sort of concatenation to a new column, minus white space and then using a "WHERE column_name LIKE pattern" query, but so far I can't get anything to work well enough. Fuzzy Logic maybe?
the results would produce a grid something like this for the example above:
ID | Surname | Forenames | DuplicateID | DupSurname | DupForenames
1 | Smith | John Raymond | 2 | Smith | John
1 | Smith | John Raymond | 3 | Smith | Jon Raymond
9 | Brown | Peter David | 343 | Brown | Pete D
next batch of duplicates etc etc . . . .
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?
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]....
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
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
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.
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;
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
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.
View 7 Replies View RelatedIm 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
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)
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
View 1 Replies View RelatedI 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
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
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.
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.
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)
View 9 Replies View RelatedI 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).
(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?
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
View 3 Replies View RelatedI 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?
View 10 Replies View RelatedHow 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.
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?
We currently have an application whereby the user will come along sign up add some information about them, choose what interests / hobbies they're in to and then click save.After completing the sigh up they're able to search for other individuals within locations (look at this functionality as a dating site) We currently have a stored procedure whereby when the user clicks Advance Search they fill in all the fields they filled in when signing up and when they click search we return all users that match the data the user has selected. This part is working correctly.
The issue im having is extending this stored procedure to take a user defined table type which has two columns UserId and ActivityId both columns are nullable.This user defined table type is referred to in two places, when the user signs up and when they do an advance search.When the user does an advance search he / she can choose a list of hobbies / interests this will then be passed in to the database and I will join on my User_Activities table to find the users that have the Activities passed in.When I join on this table I get duplicate records purely because one user may have 5 - 10 activities depending on how active the individual is. My current stored procedure looks like this
@Ambition int = null,
@Body int = null,
@Diet int = null,
@Drinking int = null,
@Ethnicity int = null,
@Exercise int = null,
@HeightFrom int = null,
[code]...
So my question is how can I select all users that match the criteria passed in, as well as finding the users that match the activities passed in (the user can either match all of them or a minimum of 1). Also my User_Activities has two columns UserId and ActivityId identical to the user defined table type
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.
Is there a query or a way to convert duplicates value in a column to non duplicates.
View 14 Replies View RelatedWith merge/insert statements ...Is DISTINCT best way to handle problem of source table containing duplicate rows, along with WHERE NOT IN statement? the source dataset is large and having to do DISTINCT and further filtering is taxing on the ETL.
DDL
source table
CREATE TABLE [dbo].[source](
[Product_ID] [INT] NOT NULL,
[ProductCode] [VARCHAR](20) NULL,
[ProductName] [VARCHAR](100) NULL,
[ProductColor] [VARCHAR](20) NULL,
[code]....
Hi,
I'm new to SQL Server 2005 SSIS. I'm trying to do something very simple, but I cannot figure it out, PLEASE HELP!
I have a flat file, which I read and then insert the data in a database table, that works fine. The problem is that I don't want to insert duplicate records. For example; if I run the package again, it will appent to the table. What I need to do is that if the package runs again, check if the record already exist, based one two columns, date and hour, and do not insert the record.
Thank you,
Aldo