Cannot See The SQL Express Instance On The Network Server List...
Feb 2, 2007
I have installed SQL Server Express and I can connect with it locally using "localcomputernameSQLEXPRESS". It is configured for remote connection and for some reason, when I browse for this instance on the Network Server, it does not appear in the list. I have unistalled/installed it several times and still I cannot see this instance on the SQL Network server list. Can anyone help troble shoot this frustrating issue...
Thanks!
SAM
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Dec 7, 2006
Hi,
how to build a sql server instance in the network using sql express?
thank you.
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Aug 22, 2007
Hi all,
I have SQL Server Express and VB 2005 Express installed in a Microsoft Windows XP Pro PC that is a terminal PC in our office Network. My Network Administrator has granted my terminal PC for Administrator Use. I tried to do the ADO.NET 2.0-VB 2005 programming in my terminal PC and I could not get a remote connection in the Window Form Application via Window Authorization. I do not know how to make this kind of remote connection in my Network. Please help and advise.
Thanks in advance,
Scott Chang
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Sep 19, 2007
Hi all,
In my office computer network system (LAN), my Windows XP Pro PC has SQL Server Express and VB 2005 Express installed and I was granted to have the Administrator priviledge to access SQL Server Express. I tried to create a SQLCLR project in my terminal PC.
1) I tried to set up a remote connection to SQL Server Express in the following way: SQL Server EXpress => SQL Server Surface Area Configuration. In the Surface Area Configuration for Service and Connection - local, I clicked on Remote Connection of Database Engine, SQLEXPRESS and I had a "dot" on "Local and remote connections" and "Using TCP/IP only". Then I clicked on "Apply" and "OK" buttons. Then I went to restart my database engine in SQL Server Management. When I went to check SQL Server 2005 Surface Area Configuration, I saw the arrow is pointing to "Service", not to "Remote Connections"!!!??? Is it right/normal? Please comment on this matter and tell me how I can have "Remote Connecton" on after I selected it.
2) After I restarted the database engine (I guess!!), I executed the following project code (copied from a book) in my VB 2005 Express:
//////////////--Form9.vb---/////////////////
mports System.Data.SqlClient
Imports System.Data
Public Class Form9
Dim cnn1 As New SqlConnection
Private Sub Form5_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
'Compute top-level project folder and use it as a prefix for
'the primary data file
Dim int1 As Integer = InStr(My.Application.Info.DirectoryPath, "bin")
Dim strPath As String = Microsoft.VisualBasic.Left(My.Application.Info.DirectoryPath, int1 - 1)
Dim pdbfph As String = strPath & "northwnd.mdf"
Dim cst As String = "Data Source=.sqlexpress;" & _
"Integrated Security=SSPI;" & _
"AttachDBFileName=" & pdbfph
cnn1.ConnectionString = cst
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Create a command to create a table
Dim cmd1 As New SqlCommand
cmd1.CommandText = "CREATE TABLE FromExcel (" & _
"FirstName nvarchar(15), " & _
"LastName nvarchar(20), " & _
"PersonID int Not Null)"
cmd1.Connection = cnn1
'Invoke the command
Try
cnn1.Open()
cmd1.ExecuteNonQuery()
MessageBox.Show("Command succeeded.", "Outcome", _
MessageBoxButtons.OK, MessageBoxIcon.Information)
Catch ex As Exception
MessageBox.Show(ex.Message)
Finally
cnn1.Close()
End Try
End Sub
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
'Create a command to drop a table
Dim cmd1 As New SqlCommand
cmd1.CommandText = "DROP TABLE FromExcel"
cmd1.Connection = cnn1
'Invoke the command
Try
cnn1.Open()
cmd1.ExecuteNonQuery()
MessageBox.Show("Command succeeded.", "Outcome", _
MessageBoxButtons.OK, MessageBoxIcon.Information)
Catch ex As Exception
MessageBox.Show(ex.Message)
Finally
cnn1.Close()
End Try
End Sub
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
'Declare FromExcel Data Table and RowForExcel DataRow
Dim FromExcel As New DataTable
Dim RowForExcel As DataRow
FromExcel.Columns.Add("FirstName", GetType(SqlTypes.SqlString))
FromExcel.Columns.Add("LastName", GetType(SqlTypes.SqlString))
FromExcel.Columns.Add("PersonID", GetType(SqlTypes.SqlInt32))
'Create TextFieldParser for CSV file from spreadsheet
Dim crd1 As Microsoft.VisualBasic.FileIO.TextFieldParser
Dim strPath As String = _
Microsoft.VisualBasic.Left( _
My.Application.Info.DirectoryPath, _
InStr(My.Application.Info.DirectoryPath, "bin") - 1)
crd1 = My.Computer.FileSystem.OpenTextFieldParser _
(My.Computer.FileSystem.CombinePath(strPath, "Book1.csv"))
crd1.TextFieldType = Microsoft.VisualBasic.FileIO.FieldType.Delimited
crd1.Delimiters = New String() {","}
'Loop through rows of CSV file and populate
'RowForExcel DataRow for adding to FromExcel
'Rows collection
Dim currentRow As String()
Do Until crd1.EndOfData
Try
currentRow = crd1.ReadFields()
Dim currentField As String
Dim int1 As Integer = 1
RowForExcel = FromExcel.NewRow
For Each currentField In currentRow
Select Case int1
Case 1
RowForExcel("FirstName") = currentField
Case 2
RowForExcel("LastName") = currentField
Case 3
RowForExcel("PersonID") = CInt(currentField)
End Select
int1 += 1
Next
int1 = 1
FromExcel.Rows.Add(RowForExcel)
RowForExcel = FromExcel.NewRow
Catch ex As Microsoft.VisualBasic.FileIO.MalformedLineException
MsgBox("Line " & ex.Message & _
"is not valid and will be skipped.")
End Try
Loop
'Invoke the WriteToServer method fo the sqc1 SqlBulkCopy
'object to populate FromExcel table in the database with
'the FromExcel DataTable in the project
Try
cnn1.Open()
Using sqc1 As SqlBulkCopy = New SqlBulkCopy(cnn1)
sqc1.DestinationTableName = "dbo.FromExcel"
sqc1.WriteToServer(FromExcel)
End Using
Catch ex As Exception
MessageBox.Show(ex.Message)
Finally
cnn1.Close()
End Try
'Read the FromExcel table and display results in
'a message box
Dim strQuery As String = "SELECT * " & _
"FROM dbo.FromExcel "
Dim str1 As String = ""
Dim cmd1 As New SqlCommand(strQuery, cnn1)
cnn1.Open()
Dim rdr1 As SqlDataReader
rdr1 = cmd1.ExecuteReader()
Try
While rdr1.Read()
str1 += rdr1.GetString(0) & ", " & _
rdr1.GetString(1) & ", " & _
rdr1.GetSqlInt32(2).ToString & ControlChars.CrLf
End While
Finally
rdr1.Close()
cnn1.Close()
End Try
MessageBox.Show(str1, "FromExcel")
End Sub
End Class
//////////////////////////////////////////////////////////////////////////////
I got the following error messages:
SecurityException was unhandled
Request for the permission of type 'System. Security. Permissions.FileIOPermission,mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'failed that is pointing to the code statement "Dim int1 As Integer = InStr (My.Application.Info.DirectoryPath, "bin")."
Troubleshooting tips:
Store application data in isolated storage.
When deploying an Office solution, check to make sure you have fulfilled all necessary requirments.
Use a certificate to obtain the required permission(s).
If an assembly implementing the custom security references other assemblies, add the referenced assemblies to the full trust assembly list.
Get general help for the exception.
I am a new Microsoft VS.NET Express user to do the SQL Server 2005 Express and VB 2005 Express programming by using the example of a tutorial book. Please help and tell me what is wrong in my SQLCLR sep-up and project coding and how to correct the problems.
Many Thanks in advance,
Scott Chang
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Mar 28, 2007
Is there a way of limiting the "Databases list" to just the databases which I have permission to?
My databases is in a hosted environment, and the list of databases on that server is HUGE.
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Mar 5, 2008
Hi all,
For the first time, I want to set up the configuration of my SQL Server Management Studio Express (SSMSE) to allow me in doing the non-User-Instance/ADO.NET 2.0 programming from my VB 2005 Express. The SSMSE and VB 2005 Express are in my Windows XP Pro PC that is part of our NT 4 LAN System in our office. I read the article "How to configure SQL Server 2005 to allow remotre connections" in http://support.microsoft.com/kb/914277/ about (i) "Enable remote connections for SQL Server 2005 Express", (ii) Enable the SQL Server Browser service", (iii) Create exception in Windows Firewall, and (iv) Create an exception for the SQL Server Browser service in Windows Firewall. I entered the SQL Server Surface Area Configuration and I could not decide what options I should take for doing the non-User-Instance/ADO.NET 2.0 programming from my VB 2005 Express. I have the following questions on the page of "Minimize SQL Server 2005 Surface Area":
(1) I saw "Configure Surface Area for localhost [change computer]". I clicked on [change computer] and I saw the
following: Select Computer
The Surface Area Configuration of this surface area of this computer or a remote computer.
Specify a computer to configure: O Local computer
O Remote computer
Should I choose the "Local computer" or the "Remote computer" option?
(2) Below the "Configure Surface Area for localhost [change computer]",
I clicked on "Surface Area Configuration for Service and Connections", Select a component and then configure its services and connections: |-| SQLEXPRESS
|-| Database Engine
Service
I picked => Remote Connection
On the right-hand side, there are: O Local connections only
O Local and remorte connections
O Using TCP/IP
O Using named pipes only
O Using both TCP/IP and named pipes
Should I choose O Local and remorte connections and O Using named pipes only?
Please help and tell me what options I should choose in (1) and (2).
Thanks in advance,
Scott Chang
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Jan 10, 2015
Looking for query that lists all databases, in an instance, that are not accessed before a given date (e.g., not accessed before December 31, 2014)?
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Jan 6, 2007
Hi all,
I have read/studied (i) Working with Databases in Visual Web Developer 2005 Express in http://quickstarts.asp.net/QuickStartv20/aspnet/doc/data/vwd.aspx, (ii) Xcopy Deployment (SQL Server Express) in http://msdn2.microsoft.com/en-us/library/ms165716.aspx, (iii) User Instances for Non-Administrators in http://msdn2.microsoft.com/en-us/library/ms143684.aspx, and (iv) Embedding SQL Server Server Express in Applications in http://msdn2.microsoft.com/en-us/library/ms165660.aspx. I do not understand the concepts and procedures to do Xcopy and User Instances for non-administrators completely-I do not know how to connect to databases and create database diagrams or schemas using the Database Explorer. I have a stand-alone Windows XP Pro PC. I have created a ChemDatabase with 3 dbo tables in the SQL Server Management Studio of my SQL Server Express and a website of my VWD Express application with an App_Data folder. I am not able to proceed to use Xcopy and user instance to bring the 3 dbo tables of ChemDatabase to my App_Data folder. Please help and give me some detailed procedures/instructions to bring the 3 dbo tables of ChemDatabase (or ChemDatabase itself) from the SQL Server Management Studio Express to the App_Data folder of the website of my VWD Express project?
Thanks in advance,
Scott Chang
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Oct 29, 2006
Hi,
im redeveloping my application from using access 2000/DAO to VS2005 professional/SQL server express using ADO.NET (i use VB), and just want to make sure i'm on the right lines about using sql server express 2005 on a network. i've spent hours reading every concievable article on the web after failing to create a database on a network drive, and ive just come across a good artricle here but want to be sure i understand what i need to do properly.
am i correct in the following please:
i only need 1 instance of SQL Server installed on the server, local PC's that will be using my SQL database do not need SQL server/management express installing?
obviously the database resides on the same server as SQL server 2005 on the network.
i dont need any additional software/drivers etc installing on the local pc's (as a miniumum all local pc's will be running w2000 or XP)
In my local pc's, i set the connection string to point to the instance of SQL server on the server PC
i need to enable the tcp/ip connection stuff on the server.
all local PC's need .NET framework 2.0 installing, as well as the server.
as an additional question, what if an end user has another SQL version installed already, say the enterprise version? is it recommended i link my app. to that, or still use SQL express for my own purposes, and are there any issues with having both database engines existing on the same server?
is there a limit on the number of concurrent users. i have read in some places that there is a limit of 4 or 5, and elsewhere that there is not.
is there anything else i should consider?, and any other help or advice is welcome.
Many thanks in advance
Bob
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Mar 13, 2008
Is there a limitation in sql server 2005 express that it does not accept connections via the network? I am trying to develop a web application running the web server as a VM but I can't connect to the sql server on the host machine. Similarly, I can't create an ODBC connection on the VM, but I can on the host. I could install sql express on the VM, that is probably the next thing I'll try.
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Dec 14, 2007
I have 2003 server installed on my machine along with MS SQL Server Management Studio and I am able to connect fine to SQL 2000 Instances. On my laptop running Vista Enterprise, I can not connect to these exact same instances via MS SQL Server Management Studio as I am getting the above error. Does anyone else have this problem? I have no idea what to check for anymore. Thanks in advance.
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Jun 20, 2006
ASP v2.0I am getting this error when attempting to sign in to my site once uploaded to the server. Can anyone help me to resolve this error?
Server Error in '/' Application.
An error has occurred while establishing a connection to the server.
When connecting to SQL Server 2005, this failure may be caused by the fact that
under the default settings SQL Server does not allow remote connections.
(provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance
Specified) 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 error has occurred while establishing
a connection to the server. When connecting to SQL Server 2005, this failure
may be caused by the fact that under the default settings SQL Server does not
allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error
Locating Server/Instance Specified)Source Error:
An unhandled exception was generated during the execution of the
current web request. Information regarding the origin and location of the
exception can be identified using the exception stack trace below.
Stack Trace:
[SqlException (0x80131904): An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)] System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +735091 System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188 System.Data.SqlClient.TdsParser.Connect(Boolean& useFailoverPartner, Boolean& failoverDemandDone, String host, String failoverPartner, String protocol, SqlInternalConnectionTds connHandler, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject, Boolean aliasLookup) +820 System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +628 System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +170 System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +130 System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +28 System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424 System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66 System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +496 System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82 System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105 System.Data.SqlClient.SqlConnection.Open() +111 System.Web.DataAccess.SqlConnectionHolder.Open(HttpContext context, Boolean revertImpersonate) +84 System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation) +197 System.Web.Security.SqlMembershipProvider.GetPasswordWithFormat(String username, Boolean updateLastLoginActivityDate, Int32& status, String& password, Int32& passwordFormat, String& passwordSalt, Int32& failedPasswordAttemptCount, Int32& failedPasswordAnswerAttemptCount, Boolean& isApproved, DateTime& lastLoginDate, DateTime& lastActivityDate) +1121 System.Web.Security.SqlMembershipProvider.CheckPassword(String username, String password, Boolean updateLastLoginActivityDate, Boolean failIfNotApproved, String& salt, Int32& passwordFormat) +105 System.Web.Security.SqlMembershipProvider.CheckPassword(String username, String password, Boolean updateLastLoginActivityDate, Boolean failIfNotApproved) +42 System.Web.Security.SqlMembershipProvider.ValidateUser(String username, String password) +83 System.Web.UI.WebControls.Login.OnAuthenticate(AuthenticateEventArgs e) +160 System.Web.UI.WebControls.Login.AttemptLogin() +105 System.Web.UI.WebControls.Login.OnBubbleEvent(Object source, EventArgs e) +99 System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +35 System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e) +115 System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +163 System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5102
Version Information: Microsoft .NET Framework Version:2.0.50727.42;
ASP.NET Version:2.0.50727.42
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Sep 21, 2006
First-time poster (and very new to ASP.NET, so please be patient) - I am using VS 2005. I have an ASP.Net 2.0 app that is using Forms Authentication and a Login server control with AspNetSqlMembershipProvider. I have an instance of ASPNETDB.MDF in the App_Data directory on my local machine and all works well (or at least as expected). I used the Copy Web Site function to port the app (including the ASPNETDB.MDF files) to my production platform, where I encounter the error mentioned in the subject line. I have found posts (both here and other forums) that mention enabling TCP/IP using Surface Area Configuartion Utility, SQL Server Browser are exempt from firewall, and a few other things. My production machine does not have SQL SVR 2005 installed nor SQL SVR Express. Do I have to install SQL Server Express onto my production platform in order to resolve this, or is there another means (something in SQL Server 2005 Management Studio on my local machine) that will enable me to do this on the production machine?Also, I have been told that it is possible to use a database on another machine as the data store for authentication. Does anyone know how to do that? This would make the first question moot.Thanks in advance!
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Mar 21, 2008
I have tried to find the solution for the subjectline(provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) and i got the solution from the below link but when I set my web.config file according to the posted help i couldn't resolve it kindly help me for thatmany thanks,http://www.aquesthosting.com/HowTo/Sql2005/SQLError26.aspx
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Apr 15, 2008
All aspects of my website work as expected when previewed in the browser locally. It appears that I successfully published the website to my hosting company server.After successfully accessing the login page from a hyperlink on the homepage, I attempt to login and receive the following error: Please advise.
Server Error in '/' Application.
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
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 error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace:
[SqlException (0x80131904): An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +800131
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +186
System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject) +737554
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +114
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +421
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +181
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +173
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +133
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +30
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +494
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
System.Web.DataAccess.SqlConnectionHolder.Open(HttpContext context, Boolean revertImpersonate) +84
System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation) +197
System.Web.Security.SqlMembershipProvider.GetPasswordWithFormat(String username, Boolean updateLastLoginActivityDate, Int32& status, String& password, Int32& passwordFormat, String& passwordSalt, Int32& failedPasswordAttemptCount, Int32& failedPasswordAnswerAttemptCount, Boolean& isApproved, DateTime& lastLoginDate, DateTime& lastActivityDate) +1121
System.Web.Security.SqlMembershipProvider.CheckPassword(String username, String password, Boolean updateLastLoginActivityDate, Boolean failIfNotApproved, String& salt, Int32& passwordFormat) +105
System.Web.Security.SqlMembershipProvider.CheckPassword(String username, String password, Boolean updateLastLoginActivityDate, Boolean failIfNotApproved) +42
System.Web.Security.SqlMembershipProvider.ValidateUser(String username, String password) +83
System.Web.UI.WebControls.Login.OnAuthenticate(AuthenticateEventArgs e) +160
System.Web.UI.WebControls.Login.AttemptLogin() +105
System.Web.UI.WebControls.Login.OnBubbleEvent(Object source, EventArgs e) +99
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +35
System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e) +115
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +163
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1746
Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433
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Apr 30, 2008
Ok can somebody please explain to me why only 1/2 my project is getting this error. I am working with SQLExpress on a remote windows 2003 box. The sql server has its service running and the browser is also running. The server has been set to allow remote connections and to accept TCP/IP and Named Pipes. Now, the website uses asp.net membership and roles to allow the users to login, which actually works. So I know that there are no errors in that connection string. However, all the data acess code is compliled as a sepeate class library thats referenced in the bin directory. When calling those methods to beind to a control in code, is where i run into this error. The class library connection string in the app.config file is exactly the same as the connection string in the web.config...i have checked permissions as well, im at a loss to the reason why this is not working....its probably something simple, but im not finding it.
On a seperate note - How do i get the remote database to show up in the server explorer on vs2008, i have tried putting in the ip addressinstance name, and a combo of there items, it will not connect. I have a feeling the two issues are connected. Also fyi, on the remote box, I am able to login with the sql studio express, so im not really sure exactly wuts gong on. Both items are really important and i need to be able to use both of them.
Thanks,
Jeremy
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May 15, 2008
Hello, I have deployed myWebApp on the IIS. All went well now, but the site does not have any connection with the database. I've already done a search on the error 26, which gave me alot of hints about solving the problem.Still I'm gettting this error. I already enabled the remote connections through the sql surface area configuration.Could it have something to do with the fact that I use LINQ? I can't find any connectionstring to modify anywhere ... Help would be appreciated.
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Nov 17, 2005
Hi,I am working with Webparts in ASP.NET and getting following error
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
Can anybody knows how to fix this issue. I have SQL Server 2005 Developer edition.RegardsAhmad
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Mar 24, 2006
I made a simple ASP.NET 2.0 Website that uses memberships, roles, and access to MS SQL Server 2005 database. Everything works fine on my development computer (WinXP Pro). When I deployed this Website on another computer (WinXP Pro) and tried to access the main page from the same computer, I get the error below.
I disabled the Windows Firewall (the only one I use), I ensured that SQL Server Browser is Active and Running, and I changed Remote Connections in SQL Server 2005 Surface Area Configuration to use Local and Remote connections for all the components.
In my Web.Config I used:
<connectionStrings><add name="sqlConnString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|DBdemo.mdf;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"/></connectionStrings>
Any idea why am I getting the following error?
Server Error in '/WebDV' Application.
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
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 error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)Source Error:
Line 2027: sqlConnection = New SqlConnection(sqlString)
Line 2028:
Line 2029: If sqlConnection.State = Data.ConnectionState.Closed Then sqlConnection.Open()
Line 2030: If Not Page.IsPostBack ThenSource File: C:InetpubwwwrootWebDVDefault.aspx.vb Line: 2029 Stack Trace:
[SqlException (0x80131904): An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +734787
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188
System.Data.SqlClient.TdsParser.Connect(Boolean& useFailoverPartner, Boolean& failoverDemandDone, String host, String failoverPartner, String protocol, SqlInternalConnectionTds connHandler, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject, Boolean aliasLookup) +820
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +628
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +170
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +130
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +28
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +496
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
Default1.Page_Load(Object sender, EventArgs e) in C:InetpubwwwrootWebDVDefault.aspx.vb:2029
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +47
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1061
Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42
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Oct 31, 2007
Hi All:
I'm having problem connecting remotely to my sql 2005 server. I do get this error msg
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
I'm using a named Instance and conncting like 192.168.2.1DB120
I have configured to server to accept remote connection.
I can connect locally bout not remotelly
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Jul 13, 2007
Hi,
I have been stuck up with this error.
I am using SQL Srver express edition with asp.net 2.0 on windows XP SP2.
When I open the SQL Management studio and execute queries it works fine.
When I exute query in command prompt using SQLCMD -E -S ServernameInstance
It conect with database and I can freely execute queries in command prompt.
I have also tried to connect with Classical ASP 3.0 It also works fine. No error
I have made all changes that u specified in ur article.
But When I try to connect with asp.net. It gives me error.
"provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)"
Same files are workign fine in my office with SQL Server 2005 enterprise edition and ASp.net 2.0. on Windows server 2003. I do not get this error. But at home I am facing this problem again and again.
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Dec 5, 2006
Hi
There is a service from SQL Server 2005 that "listens" to the network, if the network is down, all data gets saved within the local instance of the SQL server 2005. And when the network becomes available, the local instance of the sql server will automatically "feed" the local records to the central SQL server 2005.
What is that feature called?
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Sep 26, 2007
This problem happens on this particular machine and doesn't happen on other machines that I have. And I think this problem belongs to this forum. Because the problem is triggered by a special setting in the connection string.
I followed the steps of threads including Xinwei Hong's instruction for fixing this error(26) but has no luck.
The problem occurs when I call SqlConnection.Open().
I am using window xp, sql2000. the named instance is on local machine, my connection string is like
"Data Source=MSL-1417762\SQL2000;Initial Catalog=PopulateForeignKeys_MSL_1417762_2_5984;Integrated Security=True;Pooling=False;Asynchronous Processing=true"
Whenever I change Asynchronous Processing=true into Asynchronous Processing=false, the problem is gone.
This problem also occurs when I use Visual Studio - Server Explorer - Add Connection dialog - Advanced button - Advanced Properties window where you can set Asynchronous Processing property to true.
Can you please help?
Thanks,
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Jun 12, 2006
I'm having an issue when moving my site from my laptop that's running VWD Express and SQL 2005 Express to my production Windows 2003 server running SQL 2005 Standard. The site is a portal site that authenticates to my Active Directory, and uses roles bases in SQL. I can open the site on the laptop and everything works fine and I have no problems. Once I copy the site to the production server and try to access the site, I get the login page fine and try to login. The default page never opens so I'm thinking this must be some type of roles issue. Do I need to do anything with my ASPNETDB.MDF file to make it work with SQL 2005 Standard instead of Express version? I've already made sure that the SQL server is accepting remote connections...what other things do I need to do to my SQL server to ensure proper functioning? Any particular security user I need to be running particular services under? Thanks in advance...
MikeD
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Jan 30, 2008
Hi, I have installed SQL Server 2005 and Visual Studio 2005 in my machine.
I got an error when I tried an example.
"An error has occurred while establishing a connection to the server.
When connecting to SQL Server 2005, this failure may be caused by the
fact that under the default settings SQL Server does not allow remote
connections. (provider: SQL Network Interfaces, error: 26 - Error
Locating Server/Instance Specified)" .
I followed many advice online and did the following but still wrong.
Enable networking protocols during managment configuation.
add port 1343 on firewall or turn off the firewall.
make changes in web.confige as
Code Snippet
<?xml version="1.0"?>
<!--
Note: As an alternative to hand editing this file you can use the
web admin tool to configure settings for your application. Use
the Website->Asp.Net Configuration option in Visual Studio.
A full list of settings and comments can be found in
machine.config.comments usually located in
WindowsMicrosoft.NetFrameworkv2.xConfig
-->
<configuration>
<appSettings/>
<connectionStrings>
<remove name="LocalSqlServer"/>
<add name="LocalSqlServer" connectionString="Data Source=localhostand;Initial Catalog=Players;User ID=test;Password=test"/>
<add name="SqlConnectionString" connectionString="Data Source=localhostand;Initial Catalog=Players;User ID=test;Password=test"/>
<add name="OdbcConnectionString" connectionString="Driver={MySQL ODBC 3.51 Driver}; server=localhost;database=players;uid=test;pwd=test" />
<add name="OleDbConnectionString" connectionString="Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:andplayers.mdb" />
</connectionStrings>
<system.web>
<!--
Set compilation debug="true" to insert debugging
symbols into the compiled page. Because this
affects performance, set this value to true only
during development.
-->
<compilation debug="true"/>
<!--
The <authentication> section enables configuration
of the security authentication mode used by
ASP.NET to identify an incoming user.
-->
<authentication mode="Windows"/>
<!--
The <customErrors> section enables configuration
of what to do if/when an unhandled error occurs
during the execution of a request. Specifically,
it enables developers to configure html error pages
to be displayed in place of a error stack trace.
<customErrors mode="RemoteOnly" defaultRedirect="GenericErrorPage.htm">
<error statusCode="403" redirect="NoAccess.htm" />
<error statusCode="404" redirect="FileNotFound.htm" />
</customErrors>
-->
</system.web>
</configuration>
Thanks for your help.
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Jun 12, 2007
I am trying to use the visual studio for database professionals. I get the error 26 when I try to import a schema from an existing database. I am using a database from my local instance. I test the connection and the test succeeds. What is causing the error 26?
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Oct 18, 2006
I am trying to attach a network database to my sql server express
After some reading I "Enabled" tcp/ip, named pipes, and shared memory in sql server confiuration manager.
But when I go to "Attach Database" in Sql Express managemnent studio. It does not show the network drives much less allow me to attach anything on a network drive.
What am I missing here?
If I install sql server on the network machine will my local Sql express recognize it?
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Apr 28, 2006
Hello All,
I am installing SQL Server Express from the command line using the following parameters
INSTANCENAME=MSSQLSERVER ADDLOCAL=ALL SECURITYMODE=SQL DISABLENETWORKPROTOCOLS=0 SAPWD=TEST
After the install is done I start the service form the command prompt using
start mssqlserver
I see that the SQL Server service has started under NETWORK SERVICE account!!! when the documentation i Read on MSDN says it starts in Local System account
Can any one explain me the possible reasons
Thanks
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Feb 6, 2008
Hi All,
I have installed SQL Server Express on several machines on my network using same command line, configuring remote connections to be allowed. I have also added SQL Server and SQL Browser to the exceptions list in Windows Firewall.
All the installed intances in the network are listed when using SMO enumeration to browse through the servers.
But, in one of the machines, only the local SQL Express Instance is listed. The same is the case when trying from SQL Server Management Studio. But when I manually type the remote instance name it successfully connects.
I also found that adding SQL Management Studio to the list of exceptions in the Firewall solves the problem. But I don't want to install Management Studio in my client machines.
Any alternate solution will be helpful
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Oct 7, 2002
Hi,
Is there any function/API in vb to retrieve all the sql servers that are avaiable on a network? Basically, i wanted to implement this facility in my application where users can select a server from list of all avaiable servers on LAN.
Thanks!
Asif
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Feb 11, 2008
Hello. I am called Narsiste.
I have a problem of configuration in SQL server 2005 express train. In fact, I do not know how to make the configuration to tackle the databases SQL server 2005 express train which are on a station has starting from a station B (both being in a network LAN).
But I read in the module of €œconfiguration of the surface of exposure for the services and connections - localhost€? that €œBy defect, the editions Express train, Evaluation and Developer SQL SERVER 2005 authorize only local connections.€?. As it is BY DEFECT, I said myself that it will have to be changed a parameter so that access TCP/IP can go on this version of SQL SERVER.
Here is the message which I have:
€œAn error occurred during the establishment of a connection to the waiter. At the time of connection to SQL Server 2005, this failure can be due to the fact that the default settings of SQL Server do not authorize remote connections. (Provider: Interfaces network SQL, error: 26 - Error during the localization of the waiter/the authority specified) (Microsoft SQL Server, Error: -1)€?.
If somebody encountered this problem in the past, that he wants to inform well me of the solution which he found for this last. Thank you.
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Apr 22, 1999
Hi all,
Does any of you know, how to get the list of all Active SQL Servers on the Network using VB ?
regards,
Anand
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May 27, 2008
I am trying to restore database from network drive but
sql server 2005 express is giving error
"system.data.sqlclient.sqlErroratabase <dbname> cannot be opened due to inaccessible files
or insufficient memory or disk space (microsoft.sqlserver.express.smo)."
But when I restore database from "C:" or local drive it alows to do so.
Can anyone help.
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