Best Way To Add To DB While Checking For Duplicates

Jul 23, 2005

Situation:
Day 1
Table contains 100 items of actions imported via FTP. One of the fields
in the table can be updated to reflect an assigned unit code.


Day 2
Actions that may be duplicates of the table from Day 1 (with the
exception of the updated assigned unit field) are imported for
inclusion in the Table from Day 1.

Question- What is the best way to insure that any new items are added
to the table and that no duplicates are added at the sametime?

Assistance would be appreciated.

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If Statement Checking For Duplicates???

Jul 2, 2007

I'm wanting to create a if statement that will query a table and check for a duplicate and if there is a duplicate return that uniqueID or if it doesnt find a duplicate continue to add a new record...so here is my question is there a way to run a if statement that will call a function (lets say a function that returns like a bool) and if it finds a duplicate grab that id and store it in a session.....i guess my question is how do i query the database for a record and if found return true if not return false....that is my question....

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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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StoredProc For Checking For Duplicates And Then Updating The Data.

Mar 22, 2008

Hi

I have a question i hope someone here will solve my problem.

I need a storedproc for checking the duplicates before updating the data.

here i need to pass four parameters to storedprocedure which must be updated with existing row.

but before updating the values. Storedproc should check for 2 colum values in all rows.

if same combination of colum values is present in any other row then the present rows which we tring to update should not be

updated. Can anyone help me with this.

Thankyou verymuch.

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T-SQL (SS2K8) :: Rank Duplicates But Only Rows Involved In Duplicates?

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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Jan 26, 2015

Is there a query or a way to convert duplicates value in a column to non duplicates.

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Feb 10, 2004

Hi,

I want to assign a list columns to be the PK on a table. I don't know what this list of columns would be.How do I go about figuring that?

Sample Data

Col1...Col2...Col3..Col4
1...........2.......A......X
1...........2........B.....X
1...........2.......A......Y



As you can see Col1 & Col2 ONLY do not make up the PK. I need to include Col3 as well. My concern is I am not sure if I have a row like..
1...........2.......A......X reapeated lower down the order. So how do I figure the PK out?

Thanks

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SQL Duplicates

Mar 2, 2006

I need some help.
I have created a database that looks like the following:
FirstName Table link to Main Table.
I have created a Stored procedure that looks like this:
Create procedure dbo.StoredProcedure
(
   @FirstName   varchar(20)
)
Declare FirstNameID int
Insert Into Main Table
(
FirstName
)
Values
(
@FirstName
)
Select @FirstNameID = Scope_Identity()
How could I redesign this to check if a value exists and if it exists then simply use that value instead of creating a new duplicate value?
 
Thanks!!

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Getting Rid Of Duplicates

Jun 27, 2001

I have a dilema..... I have a databas eof about 60,000 users and i need to get rid of those users where there is a duplicate email address. I have written an asp utilty that works but is far too taxing on our little server and i thinkk itwill kill it. what it does is for each email address it compares it against all the others.... so for each address it checks against 60,000 other records 60,000 times.... you know what i mean. its pretty phucked.... i tested it on just one record and took about 5mins.

anyway ive been trying to do it in SQL with no luck

here is a simplified version of my dilema


*****
NAMEEMAILAGE
tomtom@mail23
tombomb tom@mail23
petepete@email23
davecool@mail21
stevesteve@mail17
marycool@mail89
thomas tom@mail13
richrich@mail65
richdick@mail65
tomtom@mail23
tomtom@mail23

so what i want to do is cut it down so there are no duplicate email addresses. I want the table looking like this:

*****
NAMEEMAILAGE
tomtom@mail23
petepete@email23
davecool@mail21
stevesteve@mail17
richrich@mail65
richdick@mail65

Can you think of a way to do this?

i tried the following but it gets rid of duplicates of other fields which is not what i want to do

CREATE table distinct_records
SELECT name, Email, Age
FROM duplicate_records
GROUP BY name, Email, Age;

any ideas guys?

thanks
tom.harrow@netpoll.net

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Nov 7, 2005

i've imported a number of spreadsheets into a database
the schema is

directoryid firstname, lastname, extension
703168 Andrew Lim 78094
703154 Joseph Egan 78888
704548 Andrew Lim 78094

I realized the spreadsheet had a large number of duplicates. How can i delete the duplicates ?
like deleting directoryid 703168 only.

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Nov 9, 2005

i'm trying to get duplicates out of the my database

SELECT COUNT(*) AS Amount,
Firstname,
surname,
Internalextension
FROM iac.dbo.sf_profil
GROUP BY FirstName, surname, internalextension
HAVING COUNT(*) > 1 order by firstname, surname


How do i alter the query just retrieve records which have firstname and lastname which are similar but different extension numbers ?

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May 8, 2008

Hi,
This is the query which shows me the duplicates
Some of the records have more than one records
I would like to know how to delete the extra records so that I will end up with one record per row.

select
Pricing_Source,
VaR_Identifier,
Price_Date,
PX_Last,
Count(*) as 'count'
from
tblPricesClean
group by
Pricing_Source,
VaR_Identifier,
Price_Date,
PX_Last
having count(*) > 1
order by
count desc

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Jun 13, 2008

Hi,

Is there a way to find duplicates in one field? For example my query has person_nbr and for each person_nbr on one day they could have used multiple payer_names. I want to be able to count each person_nbr one time but also I want to group by description(which is the name of the provider) and by payer name to see how many person's that the provider seen with each payer. My problem is that if the person had more than one payer they are counted twice. Is there some type of aggregate function to use the first payer in the list??

With PersonMIA (person_id,person_nbr,first_name,last_name,date_of_birth) as
(
select distinct person_id,person_nbr,first_name,last_name,date_of_birth from
(select count(*) as countenc,a.person_id,a.person_nbr,
a.first_name,a.last_name,
a.date_of_birth
from person a
join patient_encounter b on a.person_id = b.person_id
group by a.person_id,a.person_nbr,a.first_name,a.last_name,a.date_of_birth )tmp
where tmp.countenc <=1
)
select person_nbr,payer_name,first_name,last_name,description,year(create_timestamp),create_timestamp
from
(
select distinct c.description,tmp.person_id,tmp.person_nbr,tmp.first_name,
tmp.last_name,tmp.date_of_birth,d.payer_name,b.create_timestamp
from PersonMIA tmp
join person a on a.person_id = tmp.person_id
join patient_encounter b on a.person_id = b.person_id
join provider_mstr c on b.rendering_provider_id = c.provider_id
join person_payer d on tmp.person_id = d.person_id
where c.description = 'Leon MD, Enrique'
group by c.description,tmp.person_id,tmp.person_nbr,tmp.first_name,tmp.last_name,
tmp.date_of_birth,d.payer_name,b.create_timestamp
)tmp2
where year(create_timestamp) IN (2005,2006)
group by person_nbr,payer_name,first_name,last_name,description,create_timestamp

Thanks in Advance!
Sherri

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May 10, 2006

Hi,
I'll see if I can explain this clearly. The query below
selects rows from the "hdr_ctl_nbr_status" table if the value in the field "tcn" from that table is found in the table "temp_tcn". I want all fields from the "hdr_ctl_nbr_status" table to be selected BUT only one row. In other words for a tcn with a value "12345678" there are 10 rows returned from the hdr_ctl_nbr_status table, I want only 1. Is there a way I can use SELECT DISTINCT to do this ? I know this usually functions on one or more fields but I want the DISTINCT to be on tcn only BUT return all fields in the query.

Select h.*,'' from hdr_ctl_nbr_status as h WITH (NOLOCK)
where h.tcn in (select tcn from temp_tcn)

Thanks, sorry if this is too confusing. Jeff

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Mar 10, 2008

Hi, All,

I have two columns of int data in the a table, as my example data shows below.

I want my data returned to be something like those in #test3, but my question is this, how can I do it without using #test2 and #test3?

By the way, the business requirement doesn't care it's min/max or any ID when one side has duplicated values.

Thanks!


Use tempdb
Go

if object_ID ('#test') is not null drop table #test

create table #test (col1 int, col2 int)
insert into #test
Select 123, 222 union
Select 124, 222 union
Select 125, 222 union
Select 111, 223 union
Select 111, 224

if object_ID ('#test2') is not null drop table #test2
create table #test2 (col1 int, col2 int)
Insert into #test2
Select distinct col1, min(col2) from #test group by col1


if object_ID ('#test3') is not null drop table #test3
create table #test3 (col1 int, col2 int)
Insert into #test3
Select min(col1), col2 from #test2 group by col2

Select * from #test3

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Jul 28, 2005

I am attempting to execute the Stored Procedure at the foot of thismessage. The Stored Procedure runs correctly about 1550 times, butreceive the following error three times:Server: Msg 512, Level 16, State 1, Procedure BackFillNetworkHours,Line 68Subquery returned more than 1 value. This is not permitted when thesubquery follows =, !=, <, <= , >, >= or when the subquery is used asan expression.I've done some digging, and the error message is moderatelyself-explanatory.The problem is that there is no Line 68 in the Stored Procedure. It'sthe comment line:-- Need to find out how many hours the employee is scheduled etc.Also, there are no duplicate records in the Employee table nor theWeeklyProfile table. At least I assume so - if the following SQL todetect duplicates is correct!SELECT E.*FROMEmployee Ejoin(select EmployeeIDfromEmployeeGroup by EmployeeIDhaving count(*) > 1) as E2On(E.EmployeeID = E2.EmployeeID)SELECTW.*FROMWeekProfile Wjoin(SelectWeekProfileIDFROMWeekProfileGROUP BYEmployeeID, MondayHours, WeekProfileIDHAVING COUNT(*) > 1) AS W2ONW.WeekProfileID = W2.WeekProfileIDNOTE: In the second statement, I have tried for MondayHours thruFridayHours.Anyone got any ideas? The TableDefs are set up in this thread:<http://groups-beta.google.com/group/comp.databases.ms-sqlserver/browse_frm/thread/fff4ef21e9964ab8/f5ce136923ebffc3?q=teddysnips&rnum=1&hl=en#f5ce136923ebffc3>The Stored Procedure that causes the error is here:--************************************************** ***********CREATE PROCEDURE BackFillNetworkHoursASDECLARE @EmployeeID intDECLARE @TimesheetDate DateTimeDECLARE @NumMinutes intDECLARE @NetworkCode int-- Get the WorkID corresponding to Project Code 2002SELECT@NetworkCode = WorkIDFROM[Work]WHERE(WorkCode = '2002')-- Open a cursor on a SELECT for all Network Support Employees whereany single workday comprises fewer than 7.5 hoursDECLARE TooFewHours CURSOR FORSELECTEmployeeID,CONVERT(CHAR(8), Start, 112) AS TimesheetDate,SUM(NumMins) AS TotalMinsFROM(SELECTTI.EmployeeID,W.WorkCode,TI.Start AS Start,SUM(TI.DurationMins) AS NumMinsFROMTimesheetItem TI LEFT JOIN[Work] W ON TI.WorkID = W.WorkIDWHERE EXISTS(SELECT*FROMEmployee EWHERE((TI.EmployeeID = E.EmployeeID) AND(E.DepartmentID = 2)))GROUP BY TI.EmployeeID, TI.Start, W.WorkCode) AS xGROUP BYEmployeeID,CONVERT(char(8), Start, 112)HAVINGSUM(NumMins) < 450ORDER BYEmployeeID,CONVERT(CHAR(8), Start, 112)-- Get the EmployeeID, Date and Number of Minutes from the cursorOPEN TooFewHoursFETCH NEXT FROM TooFewHours INTO @EmployeeID, @TimesheetDate,@NumMinutesWHILE (@@FETCH_STATUS=0)BEGINDECLARE @NewWorkTime datetimeDECLARE @TimesheetString varchar(50)DECLARE @Duration intDECLARE @RequiredDuration int-- Set the correct date to 08:30 - by default the cast from thecursor's select statement is middaySET @TimesheetString = @TimesheetDate + ' 08:30'SET @NewWorkTime = CAST(@TimesheetString AS Datetime)-- Need to find out how many hours the employee is scheduled to workthat day.SET @RequiredDuration = CASE (DATEPART(dw, @NewWorkTime))WHEN 1 THEN(SELECT CAST((60 * SundayHours) AS int) FROM WeekProfile WHERE(EmployeeID = @EmployeeID))WHEN 2 THEN(SELECT CAST((60 * MondayHours) AS int) FROM WeekProfile WHERE(EmployeeID = @EmployeeID))WHEN 3 THEN(SELECT CAST((60 * TuesdayHours) AS int) FROM WeekProfile WHERE(EmployeeID = @EmployeeID))WHEN 4 THEN(SELECT CAST((60 * WednesdayHours) AS int) FROM WeekProfile WHERE(EmployeeID = @EmployeeID))WHEN 5 THEN(SELECT CAST((60 * ThursdayHours) AS int) FROM WeekProfile WHERE(EmployeeID = @EmployeeID))WHEN 6 THEN(SELECT CAST((60 * FridayHours) AS int) FROM WeekProfile WHERE(EmployeeID = @EmployeeID))WHEN 7 THEN(SELECT CAST((60 * SaturdayHours) AS int) FROM WeekProfile WHERE(EmployeeID = @EmployeeID))ENDIF @NumMinutes < @RequiredDurationBEGIN-- Set the Start for the dummy work block to 08:30 + the number ofminutes the employee has already worked that daySET @NewWorkTime = DateAdd(minute, @NumMinutes, @NewWorkTime)-- Set the duration for the dummy work block to be required durationless the amount they've already workedSET @Duration = @RequiredDuration - @NumMinutes-- Now we have the correct data - insert into table.INSERT INTO TimesheetItem(EmployeeID,Start,DurationMins,WorkID)VALUES(@EmployeeID,@NewWorkTime,@Duration,@NetworkCode)ENDFETCH NEXT FROM TooFewHours INTO @EmployeeID, @TimesheetDate,@NumMinutesENDCLOSE TooFewHoursDEALLOCATE TooFewHoursGO--************************************************** ***********ThanksEdward

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I have the following data.

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20 RIX AGQ 5/05/2007 31/12/9999

20 RIX AGR 10/06/2007 31/12/9999

18 LRS AGQ 3/09/2004 31/12/9999

22 SRT AGP 5/03/2007 31/12/9999

22 SRT AGP 10/03/2007 31/12/9999


I wish to SELECT only the records that have duplicates. So, in the above data example, RoleID of LRS should be excluded.

How to do?

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Hi!
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I suppose i need a delete in Lookup or how would I eliminate duplicates in Dim?
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Dim ReturnVal As Integer
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conn.Close()
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Code:

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------------------------
Me: What do you want to know from your data warehouse?
Client: Err...Emm...Everything
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