Inserting Of Duplicate Records Error Message

Jan 15, 2004

I would like to know what options I have with regards to trapping a duplicate record


before it tries to post to a SQL database. I have set the column to unique in SQL. But


when I try to use ASP and post a duplicate record I get a system error. I would like to


just create a referential error to notify the user that they cannot post a duplicate record


please try again. Any help would be greatly appreciated.





RT

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To Display An Alert Message While Inserting A Duplicate Record

Dec 21, 2005

I am duplicating a record from my asp.net page in to the database. When i click on save I am getting the following error message
Violation of PRIMARY KEY constraint 'PK_clientinfo'. Cannot insert duplicate key in object 'clientinfo'. The statement has been terminated.
The above message i am getting since i have tried to duplicate the clientname field of my table which is set as the primary key.
What i want is instead of this message in the browser i need to display an alert saying "the clientname entered already exists" by checking the value from the database.
Here is my code. pls modify it to achieve the said problem
if(Page.IsValid==true)    {           conn.Open();     SqlCommand cmd = new SqlCommand("insert into clientinfo (client_name, address) values ('"+txtclientname.Text+"', '"+txtaddress.Text+"')", conn);     cmd.ExecuteNonQuery();     conn.Close();     BindData();     txtclear();      System.Web.HttpContext.Current.Response.Write("<script>alert('New Record Added!');</script>");     Response.Redirect("Clientinfo.aspx");    }

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I do not want duplicates in this Encrypted Column. So before each insert the insert programs reads the table and verifies that the Encrypted Column value does not already exist. But unfortunately several duplicates are falling through the cracks. What are my options for not allowing duplicates?

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Feb 1, 2005

I have a web app that calculates tax filing status and then stores data about the person.

Facts
The insert is done through a stored procedure.
All the sites that this program is being used are connecting through a VPN so this is not an external site.
The duplicate records are coming from multiple sites (I am capturing there IP address).
I am getting a duplicate about 3 or 4 times a day out of maybe 300 record inserts.

Any help would be greatly appreciated.

There are many sqlcmdInsert.Parameters("@item").Value =

cnTaxInTake.Open()
sqlcmdInsert.ExecuteNonQuery()
cnTaxInTake.Close()

And that is it.

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Jan 15, 2008

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SQL Server VARCHAR(MAX) Column Returns Error While Inserting Records Into Table(ODBC Driver: SQL Native Client)

Aug 15, 2007

I created very simple table with 3 columns and one is varchar(max) datatype

When i insert records thru VC++ ADO code i am getting this error



Exception Description Multiple-step OLE DB operation generated errors. Check e
ach OLE DB status value, if available. No work was done. and Error Number:: -2147217887



ODBC Driver: SQL Native Client

SQL server 2005



Table

CREATE TABLE [dbo].[RAVI_TEMP](

[ID] [int] NULL,

[Name] [varchar](max) NULL,

[CITY] [varchar](50) NULL

)



VC++ code

#include "stdafx.h"
#include <string>
#include <strstream>
#include <iomanip>


int main(int argc, char* argv[])
{
try
{
HRESULT hr = CoInitialize(NULL);
_RecordsetPtr pExtRst = NULL;
_bstr_t bstrtDSN, bstrtSQL;
bstrtDSN = L"DSN=espinfo;UID=opsuser;PWD=opsuser;";
bstrtSQL = L"SELECT * FROM RAVI_TEMP";

_variant_t vartValueID,vartValueNAME,vartValueCITY;
_bstr_t bstrtValueID,bstrtValueNAME,bstrtValueCITY;

pExtRst.CreateInstance(__uuidof(Recordset));
hr = pExtRst->Open(bstrtSQL, bstrtDSN, adOpenDynamic, adLockOptimistic, adCmdText);

hr = pExtRst->AddNew();

bstrtValueID = L"1";
vartValueID = bstrtValueID.copy();

bstrtValueNAME = L"RAVIBABUBANDARU";
vartValueNAME = bstrtValueNAME.copy();

bstrtValueCITY = L"Santa Clara";
vartValueCITY = bstrtValueCITY.copy();

pExtRst->GetFields()->GetItem(L"ID")->Value = vartValueID;
pExtRst->GetFields()->GetItem(L"NAME")->Value = vartValueNAME;
pExtRst->GetFields()->GetItem(L"CITY")->Value = vartValueCITY;
pExtRst->Update();
pExtRst->Close();

}
catch(_com_error e)
{
printf("Exception Description %s and Error Number:: %d",(LPTSTR)e.Description(),e.Error());
return e.Error();
}
return 0;
CoUninitialize();
}


if i use regular SQL ODBC driver, no error but its truncating the data



Adv Thanks for your help

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Jan 10, 2006

My problem is that the 'INSERT INTO' query that sends the records to thetable is dynamically compiled in VBA and and the target table has a twocolumn primary key. I have made a number of attempts at getting 'WHERENOT EXISTS' to cure the problem but so far without success and previouspostings have resulted in advice to create an 'ignore duplicates' index.This solved the problem in asmuch as it allowed the SQL to insert the records that did not alreadyexist but resulted in the message appearing every time the user ran thethe query. Whilst this is not a major problem it is vaguely irritatingand I would like to find a way to stop it happening. I suspect that thesolution may involve using the @@ERROR command but I am not sure of thesyntax.RegardsColin*** Sent via Developersdex http://www.developersdex.com ***

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Jul 20, 2005

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Dec 31, 2006

 
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Is there any way that I can check distinct data before row is added to this table?
For example, current data is
PID MID------------100 2001100 2005101 3002102 1009102 7523102 2449
If my query is about to insert PID 100, MID 2001, since it's existing data, i don't want to add it. Can I use trigger to solve this issue?
 
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When i insert it tries to insert a duplicate entries and gives me an error. Since I am new to SQL SERVER 2000 i need some help. I tried IF NOT EXISTS, EXCEPT but i guess i am wrong at the syntax.

Can anybody help me out?

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Oct 2, 2007

Hello Everyone:

I am using the Import/Export wizard to import data from an ODBC data source. This can only be done from a query to specify the data to transfer.

When I try to create the tables, for the query, I am getting the following error:




Msg 2714, Level 16, State 4, Line 12

There is already an object named 'UserID' in the database.

Msg 1750, Level 16, State 0, Line 12

Could not create constraint. See previous errors.


I have duplicated this error with the following script:


USE [testing]

IF OBJECT_ID ('[testing].[dbo].[users1]', 'U') IS NOT NULL

DROP TABLE [testing].[dbo].[users1]

CREATE TABLE [testing].[dbo].[users1] (

[UserID] bigint NOT NULL,

[Name] nvarchar(25) NULL,

CONSTRAINT [UserID] PRIMARY KEY (UserID)

)

IF OBJECT_ID ('[testing].[dbo].[users2]', 'U') IS NOT NULL

DROP TABLE [testing].[dbo].[users2]

CREATE TABLE [testing].[dbo].[users2] (

[UserID] bigint NOT NULL,

[Name] nvarchar(25) NULL,

CONSTRAINT [UserID] PRIMARY KEY (UserID)

)

IF OBJECT_ID ('[testing].[dbo].[users3]', 'U') IS NOT NULL

DROP TABLE [testing].[dbo].[users3]

CREATE TABLE [testing].[dbo].[users3] (

[UserID] bigint NOT NULL,

[Name] nvarchar(25) NULL,

CONSTRAINT [UserID] PRIMARY KEY (UserID)

)



I have searched the "2714 duplicate error msg," but have found references to duplicate table names, rather than multiple field names or column name duplicate errors, within a database.

I think that the schema is only allowing a single UserID primary key.

How do I fix this?

TIA

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Imagine a user has found an item they are interested in and is about to tag it. They type their tag into a textbox and hit Enter.
Here's what I want to do:
I want to search the TagText column in my TAGS table, to see if the chosen tag is already in the table. If it is, the existing entry will be used in the new relationship the user is creating. Thus I avoid inserting a duplicate value in this column and save space. If the value is not already in the column, a new entry will be created.
Here's where I'm up to:
I can type a tag into a textbox and then feed it to a query, which returns any matches to a GridView control.
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Dim con As New SqlConnection(ConnectionString)
Dim cmd As New SqlCommand(InsertSQL, con)

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cmd.Parameters.AddWithValue("UserName", UserID)
cmd.Parameters.AddWithValue("CG_PFLocation", CG_PFLocation)

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Try
con.Open()
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Status.Text &= added.ToString() & " records inserted into CG Process Flow Inventory, Located in Boule_Storage."
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Yes, I know this subject has been exhausted, but I need help in locating the discussion which took place a few months ago.
Sharon relayed to the group a piece of software (expensive) which would help in my particular situation. I grabbed a demo and have gotten the approval for purchase. Unfortunately, I don't have the thread with me at work.

The problem:

Number Fname Lname Age ID
123 John Franklin 43 1
123 Jane Franklin 40 2
123 Jeff Franklin 12 3
124 Jean Simmons 39 4
125 Gary Bender 37 5
126 Fred Johnson 29 6
126 Fred Johnson 39 7
127 Gene Simmons 47 8

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Number Fname Lname Age ID
123 Jeff Franklin 12 3
124 Jean Simmons 39 4
125 Gary Bender 37 5
126 Fred Johnson 39 7
127 Gene Simmons 47 8

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UNION
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