Record Exists Insert Or Update

Oct 25, 2007



I had implemented as in the link to insert or update
http://blogs.conchango.com/jamiethomson/archive/2006/09/12/SSIS_3A00_-Checking-if-a-row-exists-and-if-it-does_2C00_-has-it-changed.aspx


What i want to know is... how can i assume there are no duplicate records.
I used Distinct keyword and queried it showed me all are distint but some where i find some duplicates just don't know why i am having when i look at the data both are exactly same...

Please let me know how can i fix it.
Urgent..

Thanks

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Dec 17, 2007

Is there a way to structure a query to update an existing table record if it already exists, otherwise insert a new record into that table?

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Feb 9, 2007

I've decided to post this as a sticky given the frequency this question is asked.

For those of you wishing to build a package that determines if a source row exists in the destination and if so update it else insert it, this link is for you.

http://blogs.conchango.com/jamiethomson/archive/2006/09/12/SSIS_3A00_-Checking-if-a-row-exists-and-if-it-does_2C00_-has-it-changed.aspx

Thanks Jamie!

If you want to do a similar concept to Jamie's blog post above, but with the Konesan's Checksum Transformation to quickly compare MANY fields, you can visit here:
http://www.ssistalk.com/2007/03/09/ssis-using-a-checksum-to-determine-if-a-row-has-changed/

Phil

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Oct 6, 2003

Hello folks,

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My Code:
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Dim strFavID, strUserID
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strUserID = request.Form("userid")

Set objConnection = Server.CreateObject("ADODB.Connection")
Set objRecordset = Server.CreateObject("ADODB.Recordset")
objConnection.Open Application("ConnectionString")

strSQL = "INSERT INTO FAV (UserID,FavID) (SELECT DISTINCT " & strUserID & " AS UserID " & _
strFavID & " AS FavID" & " FROM FAV)" & _
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response.Write(strSQL)
'response.End()

If strFavID <> "" Then
On Error Resume Next
objConnection.Execute(strSQL)

objConnection.Close
Set objConnection = Nothing
End If


This code is giving me a syntax error, how do I write the correct statement. I am using MS Access 2k

Thanks for your help

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Jun 21, 2004

/*if key values exist don't insert new record*/
SELECT

/*if exists don't insert*/
CASE
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(gtStudentId, assignmentId, score)
VALUES (@nStudent, @nAssignment, 0)
END

FROM tblScores
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tblScores has two fields comprising its primary key (gtStudentId, assignmentId) and the gradeId field is a required filed in this table.

I'm getting syntax errors when I click check syntax (near keywords insert from and end).

one other note: this CASE END is nested inside a BEGIN END loop, is this the problem? Is the 'End" of the 'Case' closing the 'End' of the 'Begin'?

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Apr 4, 2007

Hello,

it's me again :)
I've got a - what I think - simple question.
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I want all rows from B in A. If a row already exist in A, then update all columns, else just insert the row.
Can someone please help me with a small syntax.
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Hi,

I have a 'Products' table (with: 'uid' and 'CatName' columns) and 'ProductCategory' table (with: 'uid', 'ProductID', 'CategoryID' columns).

I got stored procedure below to update or insert new row to 'ProductCategory' table whenever 'Products' table has been updated or new products has been added to it.

Update part works just fine but when new row has been added to 'Products' this storedProc dosn't insert it into 'ProductCategory' table, it does that only when 'ProductCategory' table is empty, I'm afraid it's because first column 'uid' in 'ProductCategory' table is an Identity column... I’m not sure how should I go about that problem. This is my stored procedure:

DECLARE @CatNo INT, @CatName varchar(10)
SET @CatNo = 2
SET @CatName = 'bracket'

IF exists (SELECT ProductID from ProductCategory, Products where ProductCategory.ProductID = Products.uid and Products.CatName = @CatName )
BEGIN
UPDATE ProductCategory SET CategoryID = @CatNo
FROM Products WHERE Products.CatName = @CatName and ProductCategory.ProductID = Products.uid
END
ELSE
BEGIN
INSERT INTO ProductCategory ( ProductID, CategoryID)
SELECT uid, @CatNo FROM Products
WHERE Products.CatName = @CatName
END

SET @CatNo = 3
SET @CatName = 'cable'

IF exists (SELECT ProductID from ProductCategory, Products where ProductCategory.ProductID = Products.uid and Products.CatName = @CatName )
BEGIN
UPDATE ProductCategory SET CategoryID = @CatNo
FROM Products WHERE Products.CatName = @CatName and ProductCategory.ProductID = Products.uid
END
ELSE
BEGIN
INSERT INTO ProductCategory ( ProductID, CategoryID)
SELECT uid, @CatNo FROM Products
WHERE Products.CatName = @CatName
END
(... Goes for another 37 categories)



Thank you for help.

Kooba

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[code]....

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Here is what I've tried with no luck.

create trigger [updategbkmut] on [dbo].[gbkmut]
after insert
as

update g1
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Table:PR_Template
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1000 01
1000 02
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Update Rows With Next Higher Id, If It Exists

Jul 20, 2005

I am trying to determine the next registered session of a student so Ican calculate the number of skipped sessions.Scenario: I have a student registration summary table. One row foreach student and the student's registered session. I want to update agiven row with the next higher registered session (into a field callednext_registered_session_skey if the row exists). I can then use thediff of the skeys to determine how many sessions the student skippedfor each registration period.Example: Student X registers each fall for one session for 4 years.The file might look like:STUDENT_ID SESSION_ID SESSION_SKEYNEXT_REGISTRED_SESSION_SKEY123456789 200201 100null123456789 200301 104null123456789 200401 108null123456789 200501 112nullI need to update the NEXT_REGISTRED_SESSION_SKEY so I end up with:STUDENT_ID SESSION_ID SESSION_SKEYNEXT_REGISTRED_SESSION_SKEY123456789 200201 100104123456789 200301 104108123456789 200401 108112123456789 200501 112nullI can then say SESSIONS_SKIPPED = NEXT_REGISTRED_SESSION_SKEY –SESSION_KEY (logically speaking, not syntactically)This is what I have so far as example:UPDATE F_REGISTRATIONSET NEXT_REGISTERED_SESSION_SKEY = (select top 1 nextr.session_skeyfrom f_registration rinner joinf_registration nextron r.student_skey = nextr.student_skey and nextr.session_skey[color=blue]> r.session_skey[/color]order by r.session_skey desc)WHERE STUDENT_ID = '577665705';SELECT student_skey, student_id, session_id, session_skey,next_registered_session_skey, * FROM F_REGISTRATION WHERE STUDENT_ID= '577665705' order by session_skey descRESULTS:STUDENT_SKEY STUDENT_ID SESSION_ID SESSION_SKEYNEXT_REGISTERED_SESSION_SKEY125137 577665705 200404 309 311125137 577665705 200403 308 311125137 577665705 200402 307 311125137 577665705 199804 285 311125137 577665705 199803 284 311125137 577665705 199802 283 311125137 577665705 199704 281 311TIARob(I restricted with the where = ‘577665705' so I did not have to waitto update all the rows)

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