SqlClient Vs. OleDb

Mar 6, 2005

Hi.





Somewhere around I find a message, which affirmed that for perfonmance it is better to use OleDb for SQL 6.5. Is this true?.





Then el SqlClient, only have perfomance in SQL 2000?

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Feb 29, 2008

I am porting a VB.NET application using Access as its backend to use SQL Express as its new backend.
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Moreover, if I continue using OleDb, would I need to make such small changes to embedded Sql statements like using single quotes around strings or dates instead of double quotes or pound symbols that are currently being used for String or date data respectively???

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Hi all,

I got an error when i do an OLE db Source pointing to an sql 2000 database and executing a sql query inside the OLE Source. The ole source will point to an OLE DB destination which is an sql 2005 database.

But i got the below error:

Error at Data Flow Task [OLE DB Destination [245]]: the column firstname cannot be processed because more than one code page (936 and 1252) are specified for it.

Error at Data Flow Task [DTS.Pipeline]: "component "OLE DB destination" (245)" failed validation and returned validation status "VS_ISBROKEN".

Error at Data Flow Task [DTS.Pipeline]: One or more component failed validation.

Error at Data Flow TaSK: There were errors during task validation.

(Microsoft.DataTransformationServices.VsIntegration)



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Hi Experts
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The same feature works fine, under windows xp machine having IE 6.0 SP2, that proves that there is no problem with my application or code but its windows 2000 client having problem.
I tried to update the windows 2000 machine with all the patches from microsoft but no success same problem.
Any help on this issue will much appreciated.
Regards
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Hi guys,
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The sample code is below; sorry if it's a little large.  There a connection string right at the top that you may need to tweak.  It creates a stored procedure in the initial catalog; see line 95 for details - it's nothing offensive!  The sample compiles just fine from the command line with no special options needed.
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Here's hoping someone can tell me what I've done wrong!
Cheers,
Steve
using System;

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Feb 19, 2004

Hi All,

I am new to ASP.NET and trying to learn. I am getting the problem when I try to insert data into SQL. The exception that I am getting is

Exception Details: System.Data.SqlClient.SqlException: An explicit value for the
identity column in table 'Customers' can only be specified when a column list is used and IDENTITY_INSERT is ON.

My table name is 'Customers' and its as below.
-----------------------------------------------------------------------
CustomerID--numeric---Identity Seed is 1000---Identity Increment is 1---No Nulls.
Name--------varchar---No Nulls.
address------Varchar---No Nulls.
State--------Varchar---No Nulls.
Zip-----------VarcHar---No Nulls.
PhoneNumber-Varchar---No Nulls.
Email---------Varchar---No Nulls.

and my code is (No fun of my code please--I am a learner)
-----------------------------------------------------------------------

Imports System.Data

Imports System.Data.SqlClient

Public Class register

Inherits System.Web.UI.Page

Protected WithEvents cnNWind As SqlConnection

'Protected drCustomers As SqlDataReader

Protected WithEvents lbladd As System.Web.UI.WebControls.Label

Protected WithEvents lblState As System.Web.UI.WebControls.Label

Protected WithEvents lblcity As System.Web.UI.WebControls.Label

Protected WithEvents lblzip As System.Web.UI.WebControls.Label

Protected WithEvents lblPhone As System.Web.UI.WebControls.Label

Protected WithEvents lblEmail As System.Web.UI.WebControls.Label

Protected WithEvents TxtName As System.Web.UI.WebControls.TextBox

Protected WithEvents txtAdd As System.Web.UI.WebControls.TextBox

Protected WithEvents txtState As System.Web.UI.WebControls.TextBox

Protected WithEvents txtCity As System.Web.UI.WebControls.TextBox

Protected WithEvents txtZip As System.Web.UI.WebControls.TextBox

Protected WithEvents txtPhone As System.Web.UI.WebControls.TextBox

Protected WithEvents TxtEmail As System.Web.UI.WebControls.TextBox

Protected WithEvents BtnSubmit As System.Web.UI.WebControls.Button

Protected WithEvents Label1 As System.Web.UI.WebControls.Label

#Region " Web Form Designer Generated Code "

'This call is required by the Web Form Designer.

<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()

End Sub

Private Sub Page_Init(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Init

'CODEGEN: This method call is required by the Web Form Designer

'Do not modify it using the code editor.

InitializeComponent()

End Sub

#End Region

Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

'Put user code to initialize the page here

End Sub

Private Sub BtnSubmit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles BtnSubmit.Click

cnNWind = New SqlConnection()

cnNWind.ConnectionString = "Data Source=(local); Initial Catalog=cart; Integrated Security=SSPI"

cnNWind.Open()

If cnNWind.State = ConnectionState.Open Then

Dim cmCustomers As New SqlCommand("INSERT INTO Customers VALUES ('',' " & TxtName.Text & "','" & txtAdd.Text & "','" & txtState.Text & "','" & txtZip.Text & "','" & txtPhone.Text & "','" & TxtEmail.Text & "')", cnNWind)

cmCustomers.ExecuteNonQuery()

cmCustomers.ExecuteNonQuery()

cnNWind.Close()

End If

End Sub

End Class

The Error I am getting:
-----------------------------------------------------------------------
Server Error in '/SCart' Application.
--------------------------------------------------------------------------------

An explicit value for the identity column in table 'Customers' can only be specified when a column list is used and IDENTITY_INSERT is ON.
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 explicit value for the identity column in table 'Customers' can only be specified when a column list is used and IDENTITY_INSERT is ON.

Source Error:


Line 46: If cnNWind.State = ConnectionState.Open Then
Line 47: Dim cmCustomers As New SqlCommand("INSERT INTO Customers VALUES ('','" & TxtName.Text & "','" & txtAdd.Text & "','" & txtState.Text & "','" & txtZip.Text & "','" & txtPhone.Text & "','" & TxtEmail.Text & "')", cnNWind)
Line 48: cmCustomers.ExecuteNonQuery()
Line 49: cnNWind.Close()
Line 50: End If


Source File: d:inetpubwwwrootSCart
egister.aspx.vb Line: 48

Stack Trace:


[SqlException: An explicit value for the identity column in table 'Customers' can only be specified when a column list is used and IDENTITY_INSERT is ON.]
System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
SCart.register.BtnSubmit_Click(Object sender, EventArgs e) in d:inetpubwwwrootSCart
egister.aspx.vb:48
System.Web.UI.WebControls.Button.OnClick(EventArgs e)
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
System.Web.UI.Page.ProcessRequestMain()

--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:1.1.4322.573; ASP.NET Version:1.1.4322.573


The code works fine If I Dont use Identity Column, But I need to use Identity Column in my Project :( ...Please Help.

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strTable = "<table>"For i = 0 To table.Length
For Each dr In headlinesDS.Tables(table(i)).Rows
strTable += "<tr><td>" & dr(0).ToString() & "</td></tr>"
Next
Next
strTable += "</table>"
'display the data
lblHeadlines.Text = strTable
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May 1, 2008

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{decimal intamount = Convert.ToDecimal(txtAmount.Text);
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Hi everybody,

We are developing Asp.Net Application in following environment.

Windows 2003
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Problem :

We have team of four people. We made one machine as database server and rest of the people trying to connect to that database server. we are getting error "SQL server not found.".

We are using following string as a connection string.

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We have tried same connection string with the VB.Net program. It is working fine.

But when we are trying same string in the web application. It is giving me the above mentioned error.

Can any one help me ?

Thanks is advance.


From

Jigar Shah

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