Unique Rows Of Data Query

Sep 21, 2006

How would I get the unique email addresses and its associated row of data from a SQL Server table that has no unique fields defined? If there is a duplicate email address then only show the first one and not the other rows with the same email address. Example table and data UserID
             LastName
        Email997249
            MCCO-49
       S.MCCO-49@SampleISD.org997462
            BATE-62
         A.BATE-62@SampleISD.org997605
            DENS-05
        B.DENS-05@SampleISD.org
  997622
            KAIS-22
         A.KAIS-22@SampleISD.org997623
            KAIS-22
         A.KAIS-22@SampleISD.org997624
            KAIS-22
         A.KAIS-22@SampleISD.org997625
            KAIS-22
         A.ZKAIS-22@SampleISD.org997626
            KAIS-22
         AX.ZKAIS-22@SampleISD.org997627
            KAIS-22
         AX.KAIS-22@SampleISD.org   Result UserID
             LastName
        Email997249
            MCCO-49
       S.MCCO-49@SampleISD.org997462
            BATE-62
         A.BATE-62@SampleISD.org997605
            DENS-05
        B.DENS-05@SampleISD.org
  997622
            KAIS-22
         A.KAIS-22@SampleISD.org997625
            KAIS-22
         A.ZKAIS-22@SampleISD.org997626
            KAIS-22
         AX.KAIS-22@SampleISD.org Thanks

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Getting Unique Rows From Multi-table Query

Mar 10, 2012

how to join these 3 tables but there are duplicate rows in the results. How can I get all the unique rows to only show up once.

My query is:

SELECT tbl_rate.rate_ID, tbl_rate.rate_site_IDref, tbl_rate.rate_rank_IDref, tbl_rate.rate_dollar, tbl_rate.rate_ot, tbl_rate.rate_dt, tbl_rate.rate_loa,
tbl_employee.employee_name, tbl_LEM.LEM_date, tbl_LEM.LEM_reg_hrs, tbl_LEM.LEM_ot_hrs, tbl_LEM.LEM_dt_hrs, tbl_LEM.LEM_tt_hrs, tbl_LEM.site_IDREF,
tbl_LEM.LEM_LOA, tbl_LEM.LEM_Expenseinfo, tbl_LEM.LEM_workorder, tbl_LEM.LEM_posted, tbl_LEM.LEM_Expense, tbl_LEM.LEM_tagnumberREF,
tbl_LEM.LEM_reg_rate, tbl_LEM.Lem_ot_rate, tbl_LEM.Lem_tt_rate, tbl_LEM.LEM_dt_rate, tbl_LEM.Lem_loa_rate, tbl_LEM.LEM_ID, tbl_LEM.LEM_equip_days

FROM tbl_rate INNER JOIN
tbl_employee ON tbl_rate.rate_rank_IDref = tbl_employee.employee_rankREF INNER JOIN
tbl_LEM ON tbl_employee.employee_ID = tbl_LEM.employee_IDREF

The results somehow need to be distinct by tbl_lems.lem_ID

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Sep 21, 2015

I am trying to calculate the maximum sales per store where multiple stores exist in the same region (i.e there must be doubles of that row) in order to determine the most profitable store per that region.

E.g.
Store Sales
A 500
B 200
B 100
C 400
C 800
D 100
D 200
D 700

Looking for result set like:
B 200
C 800
D 700

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May 25, 2000

Hello,

This probably has been addressed before but I was unable to get the search to work properly on this site.
I am needing a script/way of deleting all rows from a DB with the exception of one record left for each row that has duplicate column data. Example :
Row 1
Field1 = 12345 Field2 =xxxxx Field 3=yyyyy Field4=zzzzz etc.
Row 2
Field1 = 12345 Field2 =zzzzzz Field 3=xxxxxx Field4=yyyyyy etc.
Row3
Field1 = 12345 Field2 =20202 Field 3=11111 Field4=zzzzz etc.
Row 4
Field1 = 54321 Field2 =xxxxx Field 3=yyyyy Field4=zzzzz etc.
Etc. Etc.

I want to be able to find the duplicates for Field1 and then delete all but 1 of those rows.( I don't care which one I keep just so only one is left.) The data in the other fields may or may not be unique.

I know how to find the duplicates it's just the deleting part I am having problems with. Any help would be much appreciated. Thanks,

Kerry

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Oct 25, 2005

My application is to capture employee locations.Whenever an employee arrives at a location (whether it is arriving forwork, or at one of the company's other sites) they scan the barcode ontheir employee badge. This writes a record to the tblTSCollected table(DDL and dummy data below).The application needs to be able to display to staff in a control roomthe CURRENT location of each employee.[color=blue]>From the data I've provided, this would be:[/color]EMPLOYEE ID LOCATION CODE963 VB002964 VB003966 VB003968 VB004977 VB001982 VB001Note that, for example, Employee 963 had formerly been at VB001 but wasmore recently logged in at VB002, so therefore the application is notconcerned with the earlier record.What would also be particularly useful would be the NUMBER of staff ateach location - viz.LOCATION CODE NUM STAFFVB001 2VB002 1VB003 2VB004 1Can anyone help?Many thanks in advanceEdwardNOTES ON DDL:THE BARCODE IS CAPTURED BECAUSE THE COMPANY MAY RE-USE BARCODE NUMBERS(WHICH IS DERIVED FROM THE EMPLOYEE PIN), SO THEREFORE THE BARCODECANNOT BE RELIED UPON TO BE UNIQUE.THE COLUMN fldRuleAppliedID IS NULL BECAUSE THAT PARTICULAR ROW HAS NOTBEEN PROCESSED. THERE ARE BUSINESS RULES CONCERNING EMPLOYEE HOURSWHICH OPERATE ON THIS DATA. ONCE A ROW HAS BEEN PROCESSED FORUPLOADING TO THE PAYROLL APPLICATION, THE fldRuleAppliedID COLUMN WILLCONTAIN A VALUE. IN THE PRODUCTION SYSTEM, THEREFORE, ANY SQL ASREQUESTED ABOVE WILL CONTAIN IN ITS WHERE CLAUSE (fldRuleAppliedID IsNULL)if exists (select * from dbo.sysobjects where id =object_id(N'[dbo].[tblTSCollected]') and OBJECTPROPERTY(id,N'IsUserTable') = 1)drop table [dbo].[tblTSCollected]GOCREATE TABLE [dbo].[tblTSCollected] ([fldCollectedID] [int] IDENTITY (1, 1) NOT NULL ,[fldEmployeeID] [int] NULL ,[fldLocationCode] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_ASNULL ,[fldTimeStamp] [datetime] NULL ,[fldRuleAppliedID] [int] NULL ,[fldBarCode] [varchar] (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL) ON [PRIMARY]GOINSERT INTO dbo.tblTSCollected(fldEmployeeID,fldLocationCode,fldTimeStamp,fldBarCode)VALUES (963, 'VB001', '2005-10-18 11:59:27.383', 45480)INSERT INTO dbo.tblTSCollected(fldEmployeeID,fldLocationCode,fldTimeStamp,fldBarCode)VALUES (963, 'VB002', '2005-10-18 12:06:17.833', 45480)INSERT INTO dbo.tblTSCollected(fldEmployeeID,fldLocationCode,fldTimeStamp,fldBarCode)VALUES (964, 'VB001', '2005-10-18 12:56:20.690', 45481)INSERT INTO dbo.tblTSCollected(fldEmployeeID,fldLocationCode,fldTimeStamp,fldBarCode)VALUES (964, 'VB002', '2005-10-18 15:30:35.117', 45481)INSERT INTO dbo.tblTSCollected(fldEmployeeID,fldLocationCode,fldTimeStamp,fldBarCode)VALUES (964, 'VB003', '2005-10-18 16:05:05.880', 45481)INSERT INTO dbo.tblTSCollected(fldEmployeeID,fldLocationCode,fldTimeStamp,fldBarCode)VALUES (966, 'VB001', '2005-10-18 11:52:28.307', 97678)INSERT INTO dbo.tblTSCollected(fldEmployeeID,fldLocationCode,fldTimeStamp,fldBarCode)VALUES (966, 'VB002', '2005-10-18 13:59:34.807', 97678)INSERT INTO dbo.tblTSCollected(fldEmployeeID,fldLocationCode,fldTimeStamp,fldBarCode)VALUES (966, 'VB001', '2005-10-18 14:04:55.820', 97678)INSERT INTO dbo.tblTSCollected(fldEmployeeID,fldLocationCode,fldTimeStamp,fldBarCode)VALUES (966, 'VB003', '2005-10-18 16:10:01.943', 97678)INSERT INTO dbo.tblTSCollected(fldEmployeeID,fldLocationCode,fldTimeStamp,fldBarCode)VALUES (968, 'VB001', '2005-10-18 11:59:34.307', 98374)INSERT INTO dbo.tblTSCollected(fldEmployeeID,fldLocationCode,fldTimeStamp,fldBarCode)VALUES (968, 'VB002', '2005-10-18 12:04:56.037', 98374)INSERT INTO dbo.tblTSCollected(fldEmployeeID,fldLocationCode,fldTimeStamp,fldBarCode)VALUES (968, 'VB004', '2005-10-18 12:10:02.723', 98374)INSERT INTO dbo.tblTSCollected(fldEmployeeID,fldLocationCode,fldTimeStamp,fldBarCode)VALUES (977, 'VB001', '2005-10-18 12:05:06.630', 96879)INSERT INTO dbo.tblTSCollected(fldEmployeeID,fldLocationCode,fldTimeStamp,fldBarCode)VALUES (982, 'VB001', '2005-10-18 12:06:13.787', 96697)

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May 12, 2006

Hi - I've got a table in SQL server that has its unique ID field as binary data. I have a gridview displaying data from this table and I have set the datakey of this gridview as that binary data field.I have a 'Select' ciolumn in my gridview that, when selected, will display more details from the selected record. The problem is, how do I pass the selected id back to sql server bearing in mind that it's binary data? Here's what I'm doing at the moment:I have a function in my data accsess class that queries the database:Public Function getDetailsById(ByVal Id As System.Byte) As DataSet        Dim con As New SqlConnection(conStr)        Dim cmd As New SqlCommand("SELECT * FROM tableName WHERE Id=@Id", con)        cmd.Parameters.Add("@Id", SqlDbType.Binary)        cmd.Parameters("@Id").Value = Id        Dim ds As New DataSet        Dim adp As New SqlDataAdapter(cmd)        adp.Fill(ds)        Return ds    End FunctionAnd then I call this function from my page with the gridview using: Dim da As New myDataAccess        Dim ds As New DataSet        ds = da.getDetailsById(GridView1.SelectedDataKey.Value)But I get the error:Conversion from type 'Byte()' to type 'Byte' is not valid.Any ideas where my data/code is going wrong? I'm not sure how to pass this sort of data around?Thanks

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Jun 15, 2004

Is it possible to use the DISTINCT clause on just one field in the SELECT statement?

The following SQL statement causes an error:

SELECT DISTINCT appt.ref, appt.notes FROM Appointments appt

...because DISTINCT can't be used on the notes field as it of type 'text'.

How can I focus the DISTINCT keyword on just the ref field?

(I know ref is the primary key, so this example wouldn't need the DISTINCT keyword, but I've simplified a much more complex statement)


Paul

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Jan 25, 2000

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Randy Garland

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Jun 18, 2004

Hi,
Following is my table:Bets

BetId GameID

500 108
500 109

501 108
501 109
501 110

502 108
502 109

I want BetId 500 and 502 to be returned as result if i give select
criteria where game id = 108,109.
Pls.Note: It should not return BetId 501 in the result, since it belongs to different combination(108,109,110).
Similarly if i give, select criteria where game id =(108,109,110) it should return
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Hope i clarified my problem..pls help me in this regard.Thanks a lot...

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Nov 15, 2006

Hi,

I am trying to do a join which involves more than 3 tables. One is a parent table and the other two table have 1:n relationship with that parent table.

But duplicate records are being returned in the resultset. How do I eliminate duplicate records?

This is my query.

SELECT table1.* from table1 left outer join table2 on table1.id=table2.id
left outer join table3 on table1.id=table3.id

I tried doing DISTINCT here but with no success.

SQL with distinct clause.

SELECT distinct table1.id, table1.* from table1 left outer join table2 on table1.id=table2.id
left outer join table3 on table1.id=table3.id

This is the error I get:
The text data type cannot be selected as DISTINCT because it is not comparable

Please help.

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Jun 3, 2008

I have the following sql:

SELECT DISTINCT patient.patientID, patientFirstName, patientLastName, patientDOB, patientGender, completed_date
FROM patient
LEFT JOIN patient_record ON patient_record.patientID = patient.patientID
WHERE (sub_categoryID = 4 OR patient_record.allocated = 4)
AND (patient_status = 1 OR patient_status = 2 OR patient_status = 5)
GROUP BY patient.patientID, patientFirstName, patientLastName, patientDOB, patientGender, completed_date

This brings up duplicate records, my aim is to bring distinct records, now if I take out the other returned fields after patientID
and using the following sql:

SELECT DISTINCT patient.patientID
FROM patient
LEFT JOIN patient_record ON patient_record.patientID = patient.patientID
WHERE (sub_categoryID = 4 OR patient_record.allocated = 4)
AND (patient_status = 1 OR patient_status = 2 OR patient_status = 5)
GROUP BY patient.patientID

This bring up distinct results, but I need to retrieve the other fields from the database i.e. patientFirstName and patientLastName

Please can you help.

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Oct 4, 2006

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Mar 20, 2008

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May 17, 2007

Using DISTINCT with SELECT have effect only for one column.
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Select DISTINCT a1,a2,a3,a4 From Y ---> results 167 rows
Select DISTINCT a4 From Y ---> " 85 rows

Any thoughts?


Jorge3921

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Jul 24, 2013

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I have code in VBA that will loop through my SQL and change out the field name, but I can't seem to get the SQL right before I can start looping it. For just one field name this would be what I have to count the unique names...

So far I have this:

INSERT INTO newtable
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And its not going too well.

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Sep 18, 2007

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tried a few different ways & just keep getting strange errors that refer to courier font ??

SQL Team Your my Hero !

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Mar 18, 2007

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Description: An
unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the
error and where it originated in the code.

Exception Details: System.Data.SqlClient.SqlException:
An expression of non-boolean type specified in a context where a
condition is expected, near ')'.

Source Error:




Line 52: //dAdapter = new SqlDataAdapter("SELECT DISTINCT * FROM [Poc_" + suffix + "] ORDER BY [CustomerLastName]", cnStr); Line 53: dAdapter = new SqlDataAdapter("SELECT * FROM [Poc_" + suffix + "] WHERE (SELECT DISTINCT [CustomerLastName], [CustomerFirstName], [CustomerEmail] FROM [Poc_" + suffix + "])", cnStr); Line 54: dAdapter.Fill(pocDS, "Data Set");Line 55: Line 56: //Dataset for name comparison  1: Can someone explain to me why this error is happening?2: Can soemone confirm that my intentions are correct with my code?3: If I'm completely off, can someone steer me in the right direction?Thanks alot!-Terry  

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[code]...

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http://www.webfound.net/qst_how_to_add_header_PK_and_FKs.JPG

Here is a print screen of the conditional split:

http://www.webfound.net/conditional_split.jpg

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http://www.webfound.net/split.txt

http://www.webfound.net/rows.jpg

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<code>
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19393Can YCustomer Two 3732.0 17-Apr-14
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19396New YCustomer One 3732.0 21-Apr-14
19397New ZCustomer One 3732.0 20-Apr-14

In the above table project number and id shouldn't be considered and I should get the unique rows considering rest of columns and sorted based on date. Expected result is

IdStatusmanager Team Comments Proj number Date
19391New XUnassigned One 3732.0 16-Apr-14
19392Can YCustomer Two 3732.0 17-Apr-14
19394Can YCustomer One 3732.0 18-Apr-14
19395New YCustomer One 3732.0 19-Apr-14
19397New ZCustomer One 3732.0 20-Apr-14
19396New YCustomer One 3732.0 21-Apr-14

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Transact SQL :: How To Compare Duplicate Rows Within A Unique Process

Nov 9, 2015

We write to a log file each time a job runs. We give each job a unique batchid. I want to compare the run times of each step/record between two batch ids: '20150101888' and '20150101777'. Column Mins in the number of minutes each step ran. I am having trouble comparing the rows that have generic process and stepname – Trans Switch in this example. A new process within a batchid starts with a 'XX', 'Load'.

So I want to compare CA's Trans to CA's Tran Switch and ER's Trans Switch to ER's, etc. There can be multiple Trans Switch per process. There should be the same number between each batch, but no guarantees that  something might change. Also, Trans Switch is not the record right after the new process (CA, ER) in production.

I have just made a very simplified example.

/**
Want to compare 20150101888 to 20150101777 and end up with this result set. Notice that the duplicate process/step within a process has the process (CA and ER in this example) and a sequential number added to it: 'CA Trans 1'. Need this to pull out the largest time differences.

Time difference, process, step, mins1, mins2, batchid1, batchid2
-6, CA, Load, 17, 23, 20150101888, 20150101777
0, CA Trans 1, Switch, 8, 8, 20150101888, 20150101777
-6, CA Trans 2, Switch, 9, 15, 20150101888, 20150101777
-4, ER, Load, 7, 11, 20150101888, 20150101777
-4, ER Trans 1, Switch, 7, 11, 20150101888, 20150101777

**/

[Code] ....

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Transact SQL :: Query To Update A Table With More Than 150 Million Rows Of Data?

Sep 17, 2015

I have been tasked with writing an update query to update a table with more than 150 million rows of data. Here are the table structures:

Source Tables :

OC
CREATE TABLE [dbo].[OC](
[OC] [nvarchar](255) NULL,
[DATE DEBUT] [date] NULL,
[DATE FIN] [date] NULL,
[Code Article] [nvarchar](255) NULL,
[INSERTION] [nvarchar](255) NULL,

[Code] ....

The update requirement is as follows:

DECLARE @Counter INT=0 --This causes the @@rowcount to be > 0
while @@rowcount>0
BEGIN
    SET rowcount 10000
    update r
    set Comp=t.Comp

[Code] ....

The update took more than 48h and didn't terminate , how to accelerate it ?

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SQL Server 2008 :: Returning Unique Rows - Read Date Field?

Jul 26, 2015

I have the following query:

Select p.Id [SenderId], p.Username, up.PhotoId,
CASE
WHEN mr.ReadDate is null then 1 -- New message
ELSE 0 -- Message has been read
END AS NewMessage,
p.LastLoggedIn, p.LoggedIn

[Code] ....

The above query returns me all messages (inbox functionality) that have been sent to mr.ReceipientId, the issue I have is when I send another email to the recipient the readdate field will be null, and the other emails linked to the recipient which have also been sent via me will have a readdate date. This causes duplicate rows to appear due to the case statement, I'm trying to figure out if / how it is possible to only display the one row per conversation and set newmessage to 1 if there is an un-read message otherwise show 0 ?

So instead of showing this:

2Person102015-07-26 17:07:24.9370
2Person112015-07-26 17:07:24.9370

I'm trying to get it to look like this:

2Person112015-07-26 17:07:24.9370

Or if we have no new mail (read date is not null) then it will appear like this, and I can confirm when there is no new mail it works as expected.

2Person102015-07-26 17:07:24.9370

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ERROR - The Row Value(s) Updated Or Deleted Either Do Not Make The Row Unique Or They Alter Multiple Rows.

Sep 8, 2006

i am getting the above error on my database i have 2 rows with the same info on and another 2 with the same info on.  example:

ID    username   password

1            bob       bob

1            bob       bob

1           john       john

1           john        john

 

I know this is a fault with ms sql 2005 however how do i fix it?

Ive found this link which explains everything but how do i start a query.  I tried clicking on new query and copying the code.  What is table1 meant to be?  the database is dbl.tbl_admin.  It wont find my database.

Im not sure how to do it anyway.

I need to change it though as its my admin password and Ive given it out to web design companys

http://geekswithblogs.net/allensb/archive/2006/07/27/86484.aspx

Can some 1 read the above page and give me full instructions, I dont know what im doing thanks

info@uktattoostudios.co.uk

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Update Rows To Resolve Issues About Duplicate Keys On Create Unique Index

May 7, 2008





Hi there ...here comes a tricky one.

I have a database table which needs to make the Index "ParentREF, UniqueName" unique - but this fails because duplicate keys are found. Thus I now need to cleanup these duplicate rows - but I cannot just delete the duplicates, because they might have rows in detail tables.
This means that all duplicate rows needs an update on the "UniqueName" value - but not the first (valid) one!

I can find those rows by

SELECT OID, UniqueName, ParentREF, CreatedUTC, ModifiedUTC FROM dbo.CmsContent AS table0
WHERE EXISTS (
SELECT OID, UniqueName, ParentREF FROM dbo.CmsContent AS table1
WHERE table0.ParentREF = table1.ParentREF
AND table0.UniqueName = table1.UniqueName
AND table0.OID != table1.OID
)
ORDER BY ParentREF, UniqueName, ModifiedUTC desc

...but I struggle to make the required SQL (SP?) to update the "invalid" rows.
Note: the "valid" row is the one with the newest ModifiedUTC value - this row must kept unchanged!

ATM the preferred (cause easiest) way is to rename the invalid rows with
UniqueName = OID
because if I use any other name I risk to create another double entry.


Thanks in advance to whoever can help me

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Transform To Remove Rows From Data Set A That Match Rows In Data Set B On A Given Key?

Jun 28, 2006

Hi,

I have a common requirement in numerous SSIS processes to take my main input data set and to remove all rows from it that match a second input data set on a given key and output this as the main output. I also want to output (as a second output) all the rows from the main input data set that did match on the given key. However, I don't want to merge in data from the second input, nor am I interested in rows from the second input data set that have no match in the main input.

E.g. If I have the following data:

Main input:
Key Name
--- ----
1 Steve
2 Jamie
3 Donald

Second Input
Key DontCareAboutThisField1
--- -----------------------
1 ...
3 ...
4 ...

Then I would like the following output:

Main Output
Key Name
--- ----
2 Jamie

Second Output
Key Name
--- ----
1 Steve
3 Donald

Can I do this with a standard transform, or will I have to write my own? Any help on this would be greatly appreciated!

Thanks in advance,

Lawrie

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Rows Skipped Out In Stored Procedure While Return All Rows If Query Executed Seprate

Nov 8, 2007

Hi All,

I am using sql server 2005. I stuck out in a strange problem.
I am using view in my stored procedure, when I run the stored procedure some of the rows get skipped out means if select query have to return 10 rows then it is returning 5 rows or any other but not all, also the records displyaing is randomly coming, some time it is displaying reords 12345 next time 5678, other time 2468.

But if I run seperately the querys written in SP then it returns all the rows. Please give me solution why it is happening like this.

There are indexes in the tables.

Once I shrink the database and rebuild the indexes, from then this problem is happening. I have rebuild the indexes several time, also updated the statistics but nothing improving.


But nothing is improving

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