User Instance Errors
May 25, 2006
I keep getting User Instance errors -
"Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed."
I get this error:
When I run SSEUTIL
When I open the Movie Collection Starter Kit and hit F5
When I create a new Windows Forms application and use Add Item/SQL Database after right-clicking on the newly-created project node in Solution Explorer.
The first error message in the Error Log in C:Documents and Settings<username>Local SettingsApplication DataMicrosoftMicrosoft SQL Server DataSQLEXPRESS shows something like this after the above operations:
2006-05-25 08:28:26.07 spid5s Starting up database 'master'.
2006-05-25 08:28:26.17 spid5s SQL Trace ID 1 was started by login "sa".
2006-05-25 08:28:26.18 spid5s Starting up database 'mssqlsystemresource'.
2006-05-25 08:28:26.18 spid5s Error: 17207, Severity: 16, State: 1.
2006-05-25 08:28:26.18 spid5s FCB::Open: Operating system error 3(The system cannot find the path specified.) occurred while creating or opening file 'c:Program FilesMicrosoft SQL ServerMSSQL.3MSSQLTemplate Datamssqlsystemresource.mdf'. Diagnose and correct the operating system error, and retry the operation.
2006-05-25 08:28:26.18 spid5s Error: 17204, Severity: 16, State: 1.
2006-05-25 08:28:26.18 spid5s FCB::Open failed: Could not open file c:Program FilesMicrosoft SQL ServerMSSQL.3MSSQLTemplate Datamssqlsystemresource.mdf for file number 1. OS error: 3(The system cannot find the path specified.).
Sure enough, when I look at the c:Program FilesMicrosoft SQL Server directory, there is no MSSQL.3 dir. Those are the symptoms. What's the diagnosis and treatment?
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Feb 20, 2007
Got windows Vista Business edition, installed Visual Web Developer Express, SQL Server 2005 Express SP2, SQL Server Management Studio SP1 in that order. I was developing in VWD express without problems using WinXP but now on Vista Business, the local connection to SQL server appears to be a problem.
I know there's nothing wrong with my web.config or anything like that as it was working perfectly prior to running under Vista. If i specify the database on the live website, it works fine. If I specify the test database in app_data folder, I get the following exception:-
Server Error in '/UKSD' Application.
Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.
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: Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.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): Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +736211
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1959
System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +33
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +237
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +374
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +192
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.SqlRoleProvider.GetRolesForUser(String username) +771
System.Web.Security.RolePrincipal.IsInRole(String role) +272
System.Web.Configuration.AuthorizationRule.IsTheUserInAnyRole(StringCollection roles, IPrincipal principal) +120
System.Web.Configuration.AuthorizationRule.IsUserAllowed(IPrincipal user, String verb) +300
System.Web.Configuration.AuthorizationRuleCollection.IsUserAllowed(IPrincipal user, String verb) +191
System.Web.Security.UrlAuthorizationModule.OnEnter(Object source, EventArgs eventArgs) +3509206
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +92
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64
Version Information: Microsoft .NET Framework Version:2.0.50727.312; ASP.NET Version:2.0.50727.312
I am taking a guess it's somerthing to do with access issues, but can't find anything out on searching the forums etc..
I am setup as an administrator, running VWD as an administrator and for the record, SQL Server Management Studio express works fine.
Another small issue, when I run the application from VWD, I always have to minimise the application and restore it as the graphics get corrupt.
Please help!! I cannot debug when running of the live website.
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Feb 6, 2006
As a starter i tried to modify and translate the Personal Website Starters kit from the VS2005Team SDK.
When i'm working on the machine were it's installed , under debugging, all works great.
But when i try to develop from my laptop, via RDP on the develop machine, i've got this message and can not debug (connect to the SQLxpres Server)
Does anybody now a solution ??
Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.
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: Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.
Source Error:
Line 5: Sub Application_Start(ByVal sender As [Object], ByVal e As EventArgs)
Line 6: AddHandler SiteMap.SiteMapResolve, AddressOf Me.AppendQueryString
Line 7: If (Roles.RoleExists("Administrators") = False) Then
Line 8: Roles.CreateRole("Administrators")
Line 9: End If
This is the connecting string
<add name="Personal" connectionString="Data Source=.SQLExpress;Integrated Security=True;User Instance=True;AttachDBFilename=|DataDirectory|Personal.mdf" providerName="System.Data.SqlClient" />
<remove name="LocalSqlServer"/>
<add name="LocalSqlServer" connectionString="Data Source=.SQLExpress;Integrated Security=True;User Instance=True;AttachDBFilename=|DataDirectory|aspnetdb.mdf" />
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Nov 21, 2007
my web app was working fine but as soon as i added in a page and few store procedures and 2 tables it just pop up with that error message.
Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.
i did go into the folder C:Documents and SettingsdnguyenLocal SettingsApplication DataMicrosoftMicrosoft SQL Server Datasqlexpress and delete the directory but this didnt help much. I still get the same error message. please help
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Nov 13, 2007
Hello,
I have just reinstalled windows xp pro with service pack 2 and framework 2.0.
I am using SQL Express and visual studion 2005.
I am trying to run my website and i keep getting this error message, i followed few instructions but i still failed to make it work. could someone who faced similar issues guide me,
thanks
MM
Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed
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: Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.
Source Error:
Line 112: Public Overridable Property Theme() As String
Line 113: Get
Line 114: Return CType(Me.GetPropertyValue("Theme"),String)
Line 115: End Get
Line 116: Set
Source File: C:WINDOWSMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Fileswroxunitedeecd65d2e1a6a798App_Code.ws-dzmjl.6.vb Line: 114
Stack Trace:
[SqlException (0x80131904): Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.]
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +437
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.Profile.SqlProfileProvider.GetPropertyValuesFromDatabase(String userName, SettingsPropertyValueCollection svc) +766
System.Web.Profile.SqlProfileProvider.GetPropertyValues(SettingsContext sc, SettingsPropertyCollection properties) +428
System.Configuration.SettingsBase.GetPropertiesFromProvider(SettingsProvider provider) +410
System.Configuration.SettingsBase.GetPropertyValueByName(String propertyName) +117
System.Configuration.SettingsBase.get_Item(String propertyName) +89
System.Web.Profile.ProfileBase.GetInternal(String propertyName) +36
System.Web.Profile.ProfileBase.get_Item(String propertyName) +68
System.Web.Profile.ProfileBase.GetPropertyValue(String propertyName) +4
ProfileCommon.get_Theme() in C:WINDOWSMicrosoft.NETFrameworkv2.0.50727Temporary ASP.NET Fileswroxunitedeecd65d2e1a6a798App_Code.ws-dzmjl.6.vb:114
Wrox.Web.GlobalEvents.ThemeModule.app_PreRequestHandlerExecute(Object Sender, EventArgs E) in C:WebsiteWroxUnitedApp_CodeThemeModule.vb:30
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +92
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64
Version Information: Microsoft .NET Framework Version:2.0.50727.832; ASP.NET Version:2.0.50727.832
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May 25, 2006
Hello everyone,
I am new in .NET development and currently trying to learn VWB through Microsoft online tutorials.
Here is the problem that prevents me from getting further:
in VWB, when you right click App_Data and chose "Add New Item" and then select SQL database, the following error message is displayed:
"Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed."
If I cancel out of it, it does generate mdf file under App_Data folder in Solution Explorer, but when I try to open it, it says:
"The item does not exist in the Web directory. t may have been moved, renamed or deleted." and that is where the whole sharade deadends.
I can connect via mycomputersqlexpress under Data Connections in Database Explorer (it then adds "master.dbo" to the path) and then create custom tables, but that is not the same, isn't it? I mean, this will not integrate my database tables through default configuration that I am trying to follow?
All this happens on local machine.
Thanks to everybody who can help!
Jeff
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Sep 11, 2007
when I try to connect to an mdf as a power user,
---------------------------
Microsoft Visual Basic 2005 Express Edition
---------------------------
Failed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.
---------------------------
OK
---------------------------
I was able to do do this before until Saturady when I had to re-install sql server, and express etc due to some system problem on my xp Pro PC. What have I misconfigured?
I do see the service SQL Serer(SQLEXPRESS) started under Network Service and SQL Serfver(MSSQLSERVER) started under local system.
My power user ID does have modify access to the sql 90 database folders. and to the mdf.
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Mar 12, 2006
No wonder Microsoft is giving it away for free. It€™s not worth anything. I am very disappointed in this version of SQL server. I decided to start learning VB so I downloaded and installed VB 2005 express edition and SQL 2005 express. I tried to build a personal website using the starter kit. I kept getting the following error message, for which I have seen numerous postings on this forum.
€śFailed to generate a user instance of SQL Server due to a failure in starting the process for the user instance. The connection will be closed.€?
I went out and bought the Standard version of VS 2005 thinking there may be a feature that the free express version is lacking. I uninstalled the express version, cleaned the registry, deleted all the folders it created and installed the Standard edition. Then I tried to create a personal web using the starter kit and it does the same thing again.
I can not create a database file, connect to a database file. I can not create or attach a database on the SQL 2005 express from VS 2005. The SQL server Express seems to be working OK since I can attach to it using Microsoft SQL Server Management Studio Express. There is something about the way VS tries to connect to the database server that is not working. VB does recognize the local computer as a SQL server but can not connect to it.
SQL server is set to accept Shared memory, TCP/IP and named pipes for local clients.
What is causing this?
This is some information on the system I am using:
MS XP (SP2)
Microsoft Visual Studio 2005
Version 8.0.50727.42 (RTM.050727-4200)
Microsoft .NET Framework
Version 2.0.50727
Installed Edition: Standard
Microsoft SQL Server Management Studio Express 9.00.1399.00
Microsoft Data Access Components (MDAC) 2000.085.1117.00 (xpsp_sp2_rtm.040803-2158)
Microsoft MSXML 2.6 3.0 4.0 5.0 6.0
Microsoft Internet Explorer 6.0.2900.2180
Microsoft .NET Framework 2.0.50727.42
Operating System 5.1.2600
I am now to programming but nor computer illiterate. I have been working with MS SQL servers since version 6.5 and have MCSE, Network+, A+ and Security plus certifications. Installing and using VS should not be this problematic. What is wrong with Microsoft?
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Mar 3, 2008
Hello everybody,I was configuring a SqlDataSource control using SQL Authentication mode.I first added a database file (testdb.mdf) through Solution Explorer-Add New Items. Then through Database Explorer I created a table named "info"Then while configuring the SqlDataSource control I used the SQL Authentication mode and attached the "testdb.mdf" database file.Test Connection showed success. But when I hit the Ok button of the wizard it displayed the following error message:Failed to generate a user instance of SQL Server. Only an integrated connection can generate a user instance.While configuring the SqlDataSource control I clicked "New Connection". Under Data Source section I tried both Microsoft SQL Server and Microsoft SQL Server Database File. And in both the cases I attached a databese file(testdb.mdf). Plz enlighten me on this.Thanks and Regards,Sankar.
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Dec 7, 2006
This is my first time to deploy an asp.net2 web site. Everything is working fine on my local computer but when i published the web site on a remote computer i get the error "Failed to generate a user instance of SQL Server due to failure in retrieving the user's local application data path. Please make sure the user has a local user profile on the computer. The connection will be closed" (only in pages that try to access the database)
Help pleaseee
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Jan 22, 2008
I'm using the RTM version of Visual Studion 2008 and SQLServer Express.
Logged in as an administrator, I can create a connection to an mdf file and all is well.
As a normal user, attempting to create a connection gives the message "sqlservr.exe has stopped working A problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available."
I have tried this with UAC turned on and turned off. The result is the same. In Services I can see that SQLEXPRESS is running, but each time I try to connect, I get the "stopped working" message.
For existing database programs that have the .mdf file stored in the project folder, I can run the program in the VS IDE on my XP machine and on my Vista machine as administrator, but not as a normal user.
I'm not looking for a workaround to make this work once, but the cause and solution to the problem. This is for an introductory VB textbook and we must be able to move a database program from one machine to another and make it work. Everything I have read says that SQLExpress should be able to do that.
Can anyone help me with this?
Judy Fraser
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Apr 28, 2008
Hi all hope some one can help - please bear with me new to this
Basically I have had to change pc's so I copied and pasted my ASPNET.MDF and LDF from my old pc to new PC including webpages/apps etc.. created.
However now all I get is "Failed to generate a user instance of SQL Server due to failure in retrieving the user's local application data path """"
Just don't understand what permissions the db should have, does it need to match the SQL Express owner...
any help would be most appreciated
Thanks
Chris
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Jun 21, 2005
I installed my asp.net 2.0 web application and sql express june editon on my windows 2003 server.When the application tries to reach the database i am getting the following error"Failed to generate a user instance of SQL Server due to failure in retrieving the user's local application data path. Please make sure the user has a local user profile on the computer. The connection will be closed."I can understand that it has something to do with user right but more than that I am pretty lost. Can anyone translate this error for me and give me some tips on what do to.I checked first the user running the sql express service and saw it was the NETWORK SERVICE user. I changed it to be the local system account but that did not make any difference. The application is running just fine on my local computer(Win XP sp2). This one has SQL express April edition though.
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Oct 9, 2007
We have set-up log shipping in both our development and production environments. The difference between the two is that development is using SQL 2005 Developer Edition SP2 and production is using SQL 2005 Enterprise Edition SP2. As well, the production environment runs using 64-bit 3-node failover cluster set-up for the source, whereas the development source server environment is 32-bit and not clustered. Also, our development environment destination/monitor instance is located within the same geographic location mapped to the same domain controller. The production environment destination/monitor instance is located off-site, and although is part of the same domain, uses a different domain controller which is synched-up with the primary domain controller used for the source server and entire development environment. Other than that, both environments run using Windows 2003 Server Enterprise Edition SP1.
Originally, both environments were configured to use Monitor connections "By impersonating the proxy account of the job (usually the SQL Server Agent service account of the server instance where the job runs)". This presented no problems in the development environment, but in the production environment, this results in the following error whenever the source server tries to update the monitor instance with the backup alert status:
Error: 18456, Severity: 14, State: 11.
Login failed for user 'NT AUTHORITYANONYMOUS LOGON'. [CLIENT: XXX.XX.XX.XX]
This also results in the log-ship alert job falsely reporting that backup jobs are "out-of-synch", since the source server cannot write log information to the log ship tables on the destination/monitor instance.
Now, according to BOL, when choosing to impersonate the proxy account, this is supposed to default to the SQL Server Agent Service account, which in our systems (both development and production), is a Windows domain account with full administrator priviledges and a SQL system adminstrator on both source and destination/monitor instances.
Upon trying to open a case with Microsoft originally when we were running on SQL 2005 SP1, and spending several hours ensuring there were no duplicate SPNs and linked servers were properly configured, they had come to the conclusion that this was the result of a known SP1 issue (http://support.microsoft.com/kb/925843), and would be solved by applying SP2. We are now running SP2 + hotfix (9.0.3152), but are still receiving this error.
The only way I have currently of fixing this issue is by changing the Monitor connection from authenticating via proxy account to using a SQL Server login account which has system admin priviledges.
I have limited knowledge of how security is applied across different domain controllers within the same domain. Any help would be greatly appreciated.
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Jan 31, 2002
I'm trying to copy a database from one server to another. I'm attempting to do this by restoring a SQL 7 DB from a saved disk backup.
The FULL backup works fine. I'm only backing up "db1" with all objects, tables, etc.
I then proceed to do a restore... but it keeps bombing on the restore part because the users are not present in the new database.
I've also tried doing this as an export from on database to another. But it also fails because the users are not in the new database.
Am I missing something? Do I need to copy the Master DB too?
How do I copy the users w/o having to install each and EVERY one .... individually...? (There are 500+)
Is there a better way to restore/copy a db from one server to another? I can't figure out why it's bombing out on the part where it adds users. (I'm trying to copy my database from prod to test... but exact mirror copies)
Thanks!
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Aug 4, 2006
Hello,
I have a problem with setting up a connection in visual studio 2005 professional.
Sqlserver express is installed on the machine so I try to set up a connection by means of a microsoft sql server databasefile. When I click ok I get the error :
The user instance login flag is not supported on this version of sql server.
Can someone help me to resolve this problem.
Thanks in advance Ilja zwolsman
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Feb 23, 2008
Hello.I am trying to connect to a MsSQL Server database and i keep getting this error. Instance FailureDescription: 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.InvalidOperationException: Instance failure.
Source Error:
Line 23: SqlConnection connection = new SqlConnection();Line 24: connection.ConnectionString = str;Line 25: connection.Open(); [InvalidOperationException: Instance failure.] System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject) +737932 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) +282 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) +357 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 sign.enter_Click(Object sender, ImageClickEventArgs e) in e:WorkLicentasign.aspx.cs:25 System.Web.UI.WebControls.ImageButton.OnClick(ImageClickEventArgs e) +86 System.Web.UI.WebControls.ImageButton.RaisePostBackEvent(String eventArgument) +115 System.Web.UI.WebControls.ImageButton.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 Here is my code. I am trying to read my connection string from webconfig. I tried to put the connection string directly in the code and it works fine, but i want to get it from the webconfig xml. string str = System.Configuration.ConfigurationManager.ConnectionStrings["messengerConnectionString"].ConnectionString; SqlConnection connection = new SqlConnection(); connection.ConnectionString = str; connection.Open(); if (connection != null) { connection.Close(); connection.Dispose(); } <connectionStrings> <add name="messengerConnectionString" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=messenger;User ID=muncitoru;Password=alcatel" providerName="System.Data.SqlClient" /> </connectionStrings> Thanks in advance!
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Nov 28, 2012
I'm database novice and would like to get confirmation or correction on my understanding of the difference between a user under a sql server instance vs a user in a sql server database. For example, a user can be added under Instance-->Security--Login and a user can be added under Instance-->Databases-->Database Name-->Security-->Users.
Is the difference that the login under the instance is used for logging into the database via management studio and the user under the database is for database access? Also, is one dependent on the other? So if I want to add a user to the database, they have to be added to the instance first?
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Jun 2, 2007
Does annybody know how I can chance de User Instance to True.
I don't mean chanching it in web.config but by the SQL Server 2005 configuration.
I try to add a database to my project but i get the following message.
Generating user instance in SQL Server is disabled. Use sp_configure 'user instance enabled' to generate user instance.
Thanks for responding.
Erich.
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May 9, 2006
What would happen if I deploy my Asp.net Web Application with default setting of Sql Express and user instance set to true in the connection string? Where will the database be created and under whose account?
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Nov 26, 2007
I have built a site that uses form-based authentication. Am I correct in assuming that the users and passwords will be stored in the SQLServer database in the aspnetdb.mdf file? The website works great and the authentication works how I want it to. However, I've tried to copy over the file onto a remote machine. The first page is a login screen and this is displayed without any problems but as soon as I attempt to log in I get an error message of: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 wondering if this is something to do with the fact I installed SQLServer Express edition on the remote machine. The website works no problem on the local machine in debug mode of Visual Studio 2005 (Professional Edition). I followed instructions to enable remote connections on SQLServer Express from a Microsoft support doc. If anybody can point me in the right direction I'll be very grateful as I've hit a wall here.
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Jun 14, 2007
Hi
I am new to this forum so I hope I have got the right one.
The problem I am having is I installed a new server into an office with 25 users. I joined the users to the new domain with new logins.
The server process then installed outlook 2003 onto each machine. Most machines are windows 2000
Problems arose in sage I have tied this down to the report designer and odbc.
On every machine bar 1 the report designer crashed when running a report. The problem like I said was that you cannot now connect to the odbc driver for sage and when you go into odbcad and try to look at the driver you get an error saying
The setup routines for the sage line 50 odbc driver could not be loaded due to system error 127
Then after that comes
Could not load the setup or translator library
I have looked on the net for this error and it tells you to look in the registry to make sure that the odbcinst is pointing to the correct location, I have checked this and it is. I ahve also checked the security and this seems ok aswell.
The next step was I loaded a fresh copy of windows 2000 into a new folder and tried to load the odbc driver again. This failed with the same as above.
This points to the software settings but I cannot find out where.
Iwas wondering if anyone has had the same problem and they could point me in the right direction.
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Sep 10, 2014
I am using vs 2010 to write my dtsx import scripts.I use a script component as a source to create a flat file destination file.Everything have been working fine,but then my development machine crashed and we have to install everything again.Now when i use the execute package utility to test my scripts i get the following error:
Error system.NullReferenceException: Object refrence not set to an instance reference.
In PreExecute section
TextReader = new system.io.streamreader(" file name")
In the CreateNewOutputRows:
dim nextLine as string
nextLine = textReader.ReadLine
[code]...
is there something which i did not install or what can be the error?
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Jun 13, 2007
I'm developing my website in my docs. Once I get a version that is stable I move it over to inetput/wwwroot. When I login to my site it says it failed to generate a user instance.... for (Server)/aspnet. However, I have specified a username / password in my connection string. Any ideas?
<add name="tppConnection" connectionString="Server=(local)SqlExpress;Database=theProductPad;User ID=username;Password=password;" providerName="System.Data.SqlClient"/>
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Apr 2, 2008
Hi
Im in a bit of a pickle due to a large amount of data in a table and the query Im running is taking a very long time, so Id like to get some advice from the guys here to see if it can be done another way.
Ok, so heres the background. I have a table, see desc below, that contains transaction data for a number of users. Each user may have more than one transaction. In each row the SEQUENCENUMBER column is populated with a timestamp for the transaction, so I was using this to get the latest. However there are over 1 million rows in the table and the query below has taken over 12 hours so far to run. Has anyone any ideas on how I can make life a little easier for myself here?
SQL Query
Code:
select user,recipient,sequencenumber from trans_database where user IN (select distinct(user) from trans_database)
order by sequencenumber desc limit 1;
Table Layout
Code:
ID int(10) unsigned (NULL) NO PRI (NULL) auto_increment select,insert,update,references
RECIPIENT varchar(5) latin1_swedish_ci NO select,insert,update,references
DONOR varchar(5) latin1_swedish_ci NO select,insert,update,references
USER varchar(20) latin1_swedish_ci NO select,insert,update,references
UPDATETYPE varchar(10) latin1_swedish_ci NO select,insert,update,references
REPFLAG varchar(1) latin1_swedish_ci NO select,insert,update,references
OPFIELD varchar(20) latin1_swedish_ci NO select,insert,update,references
SEQUENCENUMBER varchar(18) latin1_swedish_ci NO select,insert,update,references
REQUESTDTS varchar(20) latin1_swedish_ci NO select,insert,update,references
PROCESSED varchar(1) latin1_swedish_ci YES (NULL) select,insert,update,references
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Mar 2, 2007
Hello...
Is there any way to create a new database directly as a user instance. I guess this means creating a new mdf/ldf pair which is detached from the server after its created.
Thank you...
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Sep 17, 2007
I was wondering whether anybody could confirm an assumption for me. The information on SQL Server Express talks a lot about its special "User Instance" mode and how it can help to simplify deployment because you can go back to just copying in a file to set up your database, and how this is great for dealing with limited user security environments. However, I have some questions surrounding whether or not this is really as great as it's cracked up to be -- I saw somewhere, for example, that made it sound like you have to be coding your application in .NET in order to use it; and it sounded like it pretty much gives the end user full access to their personal SQL Server instance, which I might not necessarily want from an application perspective. The assumption that I wanted to confirm was this€¦ Let's say that you're NOT using the "User Instance" mode. What do you then need to do in order to create the initial shell of your application database at deployment time? I was assuming that you end up having to have some sort of SQL script that does the database creation instead (including, I assume, assigning proper rights to tables to BUILTINUsers as necessary). Is that correct?
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Feb 7, 2007
Hello:
I have a requirement to connect to a user instance of sql express from a visual basic 6.0 project. I'm having trouble with my connection string.
I'm able to connect with my connection string to sql express:
Set cn = New ADODB.Connection
cn.ConnectionString = "Provider= SQLOLEDB; Data Source=.SQLEXPRESS; Integrated Security=SSPI;Connect Timeout=30"
and the get user instance name:
'Get the user instance name
strSQL = "SELECT owning_principal_name, instance_pipe_name From sys.dm_os_child_instances"
but don't know how to query the instance name. Currently, I am returning the user instance name in a function. My questions are:
1. Is there any parameter for the user instance name in the connection string?
2. To attach and detach, what providers are available?
3. Using the Provider=SQLNCLI, is the AttachDBFileName parameter optional if I supply the database?
4. What is best recommended practice for querying a user instance from application code in vb6?
5. Are there any articles that specifically describe how to query a user instance if the dbfilename path is dynamic?
Sorry if my questions are not clear. I'm new to microsoft programming (coming from Lotus/Domino)
Thanks for any help you can give me.
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Feb 17, 2006
Basically I need to know how to detach a db from a user instance of SQL Express from inside a VS2005 windows forms application.
The application is project oriented and the design calls for each project to be stored in its own separate .mdf file. When the user wants to switch projects the application will detach the current database and attach a different one, containing the data for the desired project.
I have this working fine with the default (.SQLEXPRESS) db instance, but I am having a problem getting the code to work with a SQL Express user instance (also part of the specification).
I am using the SMO library to do the Detach, and this works fine with the default instance, but for the user instance I am unable to connect to the necessary (user) instance of the db server.
I have tried selecting the instance name from dm_os_child_instances on the default instance and using the dynamically generated instance name to create the Server object. I get a good instance name, but when I create the Server object, the connection fails. I have also tried issuing "sp_detach_db" on the user instance, but this fails because the db is in use.
Any ideas would be greatly appreciated...
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Feb 11, 2008
Hi,
I have installed Microsoft SQL Server 2005 Express Edition with Advanced Services
When I try to create a new DataBase (*.mdf) in Visual Studio 2005, I get an error " Unable to create user instance. This option has been disabled"
How should I overcome this issue?
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Feb 6, 2007
Just when I think I have this stuff figured out, it bites me back everytime.
I'm
trying to deploy an mdf out to a different machine, and attached to it with local user instance. I connect without problem from my development
machine with a local user instance, which also has Express Manager resident,
and I can connect to a server instance without problem.
What I can't do is
copy the .mdf database over to another workstation, which has Sql Native
Client installed, and connect to the database using a local user
instance! I can connect to a server instance without problem from this
other workstation. Here's my connect string for local user instance
that works fine from my dev machine:
Provider=SQLNCLI.1;Persist
Security Info=False;Integrated Security=SSPI;Data
Source=.sqlexpress;AttachDBFileName=<full path_name and mdf
filename>;User Instance=true;
The error I get upon trying to connect with other stations is:
Error -2147467259
Database not found or cound not connect to database
I've
tried this every way I know how. I've copied the database from my dev
machine both with and without having detached the database from the
local instance. I've tried detaching from a server instance and copying
the file over. Nothing works, and I've done this before! What gives with this thing?
Rick
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Dec 29, 2006
Is there a way to re-index a SQL Server Express User Instance? If I try to open the .mdf while the website is still running, I get a message stating that the file is in use. If I shut down the web service and open the .mdf, then restart the website, then the website cannot access the .mdf while I have it open in VStudio (reminds me a lot of Access).
In the past I tried to open a user instance with SQL Server Management Studio, but then it goofed up my user-instance...so I am hesitant to try that again. Is there any way to re-index?
Thanks!
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Mar 3, 2007
Hi,
As per my understanding, if the user instance property is set to true for an express database then it is not multiuser/shared. A copy of the database is made for each user so he works on his private data. On the other hand, if user instance property is set to false then the express database is multiuser/shared. Thus different users will connect to the same instance of the database and changes by one user will be seen by the other users.
Now, if we use an express database with asp.net and our application is installed on IIS then it is mandatory for the express database to have the user instance property set to true. But we see that in this case when different users visit our website, the data they enter goes into the same common database, ie. all the users share the same common database, even though user instance is true for the express database.
Please shed some light to explain the correct functionality of the user instance property as related to the express database.
Regards, Sandy
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