User Instance Property In VWD Express Database
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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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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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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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 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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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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Apr 18, 2008
(have reposted this here from Setup group, since no answers there)
Hi,
I am having a lot of trouble connecting to a user instance I've created. User instances have been enabled, Named pipes are also enabled. Running on XP SP2 with SQL2K5 SP2. I also have a standard SQL2005 instance running on this development machine.
When using SqlClient in a .Net2.0 application, my connection string to create the user instance looks like:
"Data Source=.SQLEXPRESS;integrated security=true;attachdbfilename=c: emp3500.mdf;user instance=true"
This connection succeeds and I see the new service being started etc. I also see the log file being created in my Application Data area. The log file all looks normal except for these lines at the very top of the report.
2008-04-15 16:29:13.57 Server Error: 17156, Severity: 16, State: 1.
2008-04-15 16:29:13.57 Server initeventlog: Could not initiate the EventLog Service for the key 'D69F8BFF-E490-47'.
2008-04-15 16:29:13.67 Server Error: 17054, Severity: 16, State: 1.
2008-04-15 16:29:13.67 Server The current event was not reported to the Windows Events log. Operating system error = 6(The handle is invalid.). You may need to clear the Windows Events log if it is full.
2008-04-15 16:29:13.67 Server Microsoft SQL Server 2005 - 9.00.3054.00 (Intel X86)
I can also run a query on the main express instance to check if a child instance is running:
SELECT owning_principal_name, instance_pipe_name, heart_beat FROM sys.dm_os_child_instances
gives:
METECHsteve \.pipeD69F8BFF-E490-47 sqlquery alive
If i try to connect via sqlcmd with this command line:
C:Program FilesMicrosoft Visual Studio 8VC>sqlcmd -S np:\.pipeD69F8BFF-E49
0-47 sqlquery -l 60
this will give:
HResult 0x57, Level 16, State 1
SQL Network Interfaces: Connection string is not valid [87].
Sqlcmd: Error: Microsoft SQL Native Client : 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..
Sqlcmd: Error: Microsoft SQL Native Client : Login timeout expired.
If i try to connect via SSMS using the pipe name above and everything else defaulted, i get the 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: 25 - Connection string is not valid) (.Net SqlClient Data Provider)
Both errors are pretty similar. I am running this locally, so I suspect the 'remote connection' error text is a red herring. The connection string is pretty minimal so I cant see why the connection string is invalid.
Heres another wierd thing. It used to consistently work. It now consistently fails. I have also tried creating a VM with SQLX. Now that works initially but once it fails, it seems to fail consistently. Reboots of the VM dont seem to fix it. That sort of leads me to believe that I've done something to my server (ie a setting somewhere).
Any help getting this connection issue sorted would be appreciated!
Thanks,
Steve
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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.
€œFailed 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 23, 2006
How do you create a user instance so that you dont have to be logged on as administrator?
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Dec 10, 2006
how do I attach my user instance mdf and chagne scheme etc? for example my mdf is at c:sqldatamyapp.mdf
I tried attach and got
TITLE: Microsoft SQL Server Management Studio Express
------------------------------
Attach database failed for Server 'IEI-A64SQLEXPRESS'. (Microsoft.SqlServer.Express.Smo)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=9.00.2047.00&EvtSrc=Microsoft.SqlServer.Management.Smo.ExceptionTemplates.FailedOperationExceptionText&EvtID=Attach+database+Server&LinkId=20476
------------------------------
ADDITIONAL INFORMATION:
An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.Express.ConnectionInfo)
------------------------------
Directory lookup for the file "c:sqldatamyapp.mdf" failed with the operating system error 5(Access is denied.). (Microsoft SQL Server, Error: 5133)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=09.00.2047&EvtSrc=MSSQLServer&EvtID=5133&LinkId=20476
------------------------------
BUTTONS:
OK
------------------------------
I was able to run application with integrated security on teh mdf file.
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Aug 31, 2007
Hello, I'll try to make the description of this multi-problem scenario as short and sweet as possible.
First Problem
The default named instance of "SQLEXPRESS" was somehow installed on my machine and nothing can get rid of it. However, it is somehow invisible to everything else on my system, so I can't use it. How do I get rid of the instance or repair it?
Second problem
I installed another instance of the SQL Server 2005 Express and named it, "SQLEXPRESS02". I attached a database to it and successfully retrieved data from it using an application that used the following connection string:
Data Source=(local)sqlexpress02;AttachDbFilename=|DataDirectory|MyDatabase.mdf;Initial Catalog=MyDatabase;Integrated Security=True;User Instance=True
Next, I tried to use a different application to retrieve data from a copy of the same database located in a different directory and used the same connection string as that shown above. When I do this, I receive an error message similar to the following:
Database 'C:PathToMyOriginalProjectinDebugMyDatabase.mdf' already exists. Choose a different database name.
Cannot attach the file 'C:PathToMyNewProjectinDebugMyDatabase.mdf' as database 'MyDatabase'.
I then tried, out of curiosity, to change the Initial Catalog portion of the connection string to "MyDatabase2" and attempt the data retrieval again. The connection string looked like this:
Data Source=(local)sqlexpress02;AttachDbFilename=|DataDirectory|MyDatabase.mdf;Initial Catalog=MyDatabase2;Integrated Security=True;User Instance=True
Interestingly enough, it worked. However, when I switched back to the original connection string, I got the same error message as before.
What's going on here? I thought that one of the virtues of user instances was that they would attach at run-time, then disconnect when the application was through with them. If that's the case, then why am I getting errors stating that a database of the same name is already attached? Is there a way to detach these databases from a user instance? Can it be done by some value in the connection string?
Thank you in advance for your help.
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May 30, 2006
Hello,
I get the following message after updating to sql server express 2005 advanced.
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 noticed that in my C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLTemplate Data I have not databases? How do I get them back?
I also had to add back the aspnet to the permissions and the network and network service to the app_data folder.
Can any one help?
Thanks
Tom
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May 23, 2008
Hi,
I have been working around with SQL Server Express 2005 on VISTA. I created a small C++2008 application which interface with SSE 2005. When running my application, it automatically created a user instance which I would like to get rid of. I just forgot from start to set "User Instance = False" in my connectionstring. (oups...)
I'm aware, from readings I did, that a couple of tables as well as log files, etc. are created under directory "utilisateurs...AppDataLocalMicrosoftMicrosoft SQL Server DataSQLEXPRESS". SQLEXPRESS is the instance name chosen during install of SSE2005.
Also using following SQL Statement:
select owning_principal_name, instance_pipe_name, heart_beat
from sys.dm_os_child_instances
I got following result:
owning_principal_name: PC-DE-STEPHANEStéphane
instance_pipe_name: \.pipe6172F4E8-622E-4A sqlquery
heart_beat: dead (at this moment...)
==> How can I make a good cleanup of all this as well as get rid of the user instance itself?
Thanks in advance for any help.
Stéphane
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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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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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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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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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Mar 17, 2007
Hi, Folks. I hate to have to come back and ask about restores right after I had to ask about Back ups, but I'm in a bind and can't seem to find other resources that address this issue.
I'm using VB Express 2005 and SQL Express 2005 to develop a windows form application that uses a User Instance of a database. With help from this forum, I was able to get the backup working. Now, I can't get the restore to work. Here's the code I'm using:
Dim SqlConnection As SqlClient.SqlConnection = New SqlClient.SqlConnection(My.Settings.NCSConnectionString)
SqlConnection.Open()
Dim ServerConnection As ServerConnection = New Microsoft.SqlServer.Management.Common.ServerConnection(SqlConnection)
Dim srv As Server = New Server(ServerConnection)
'Declare a BackupDeviceItem by supplying the backup device file name in the constructor, and the type of device is a file.
Dim bdi As BackupDeviceItem
bdi = New BackupDeviceItem(My.Settings.DefaultBackUpPath & "NCS_Full_Backup1.bak", DeviceType.File)
''Define a Restore object variable.
Dim rs = New Restore
'Set the NoRecovery property to true, so the transactions are not recovered.
rs.NoRecovery = True
rs.ReplaceDatabase = True
'Add the device that contains the full database backup to the Restore object.
rs.Devices.Add(bdi)
rs.NoRecovery = False
'Specify the database name.
rs.Database = SqlConnection.Database.ToString()
'Restore the full database backup with no recovery.
rs.SqlRestore(srv)
'Inform the user that the Full Database Restore is complete.
MsgBox("Full Database Restore complete.")
The error is:
- InnerException {"RESTORE cannot process database 'C:DOCUMENTS AND SETTINGSMARCOSMY DOCUMENTSVISUAL STUDIO 2005PROJECTSWORKING COPY OF NCSNCSBINDEBUGNCS.MDF' because it is in use by this session. It is recommended that the master database be used when performing this operation.
RESTORE DATABASE is terminating abnormally."} System.Exception
I think that I need to either free up something that's locking the database or I need to switch to the master table in the User Instance. I tried a number of variations in attempt to try both of these avenues without sucess.
I'd really appreciate any guidance that I might be able to get.
Thank you,
MF
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Apr 11, 2007
Hi all. I have read and implemented the very helpful threads on backing up and restoring with user instance posted with MFriedlander. Thank you. However, during the rs.SqlRestore(srv) command I am getting the following error "Restore failed for Server '\.pipe4A1F91FF-F6FE-45 sqlquery'. "
"Exclusive access could not be obtained because the database is in use."
I have implemented the changedatabase method as described in that thread.
SqlConnection.ChangeDatabase("master")
right before the line
rs.SqlRestore(srv)
I do not use the default instance of sql express, but I do use an instance called 'test' for my app. Should my changedatabase method also refer to my sql instance?
I am running from VS 2005 debug (F5) when it fails and cannot think of anything that would be locking it. Any help would be appreciated. Thank you. Below is the full code of the restore.
Robert
Dim sqlconnection As SqlConnection = New SqlConnection(My.Settings.dbTestConnectionString)
sqlconnection.Open()
MsgBox(sqlconnection.Database.ToString())
Dim ServerConnection As ServerConnection = New ServerConnection(sqlconnection)
Dim srv As Server = New Server(ServerConnection)
'Declare a BackupDeviceItem by supplying the backup device file name in the constructor, and the type of device is a file.
Dim bdi As BackupDeviceItem
bdi = New BackupDeviceItem(txtRestoreFile.Text, DeviceType.File)
''Define a Restore object variable.
Dim rs As New Restore
'Set the NoRecovery property to true, so the transactions are not recovered.
rs.NoRecovery = True
rs.ReplaceDatabase = True
'Add the device that contains the full database backup to the Restore object.
rs.Devices.Add(bdi)
'don't know why the below norecovery is changed to false
rs.NoRecovery = False
'Specify the database name.
rs.Database = sqlconnection.Database.ToString()
sqlconnection.ChangeDatabase("master")
'Restore the full database backup with no recovery.
rs.SqlRestore(srv)
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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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Aug 18, 2006
I get an error dialog when I try to create a new SQL database, both via the Add New Item dialog and the property wizard of a new SqlDataSource control. The error is:
Local Database File:
User does not have permission to perform this action.
I've searched for help with this.
I ensured the App_Data folder exists and I added the local ASP.NET account to the group that have R/W access to it (although the RO flag is in an unchangeable tri-state on the folder).
The SQL Server Express error log is clean and indicates full functionality.
Everything is running locally.
No VWD installation errors.
Any ideas?
Thank you!
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Jul 10, 2007
Okay, I've read massive topics on ClickOnce, and embedded database applications, etc, etc.
I need a handful of good suggestions how I can create a deployment package, to get my sql express database onto a SQL Express server.
The database will need to be multi-user, because I am also developing a WinForms application to connect to the SQL Express database.
I'm thinking I need to use some automated scripting features, to generate scripts for the database once I am done (unless you have a better suggestion).
After that, I need to know what to do with those scripts, and how can I create a setup / deployment packages to run those scripts against a SQL Express server.
The other alterntative obviously is to copy my sql express database, and run an attach command. This will work the first time, only because this will have been the first deployment of this database.
Please keep in mind when answering this question, that I will not be embedding the database, and as far as I understand ClickOnce is a feature for use with embedded databases or user instance databases (not sure).
Daniel Crane
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Jan 15, 2007
I've set up a website on another computer using sql server express and visual web developer express, and it works as expected. However halfway through the development i've had to move to another computer. I installed visual web developer express + sql server express, and copied the project files across, but now when I attempt to run it I get the error: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've tried reinstalling the software and it doesn't help. Any idea why this is happening, and what I can do to fix it?thanks
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Mar 3, 2008
Hi all,
I'm using VS2005 + SQL Compact 3.1 and Enterprise Library 3.1 May 2007
I can successfully create a db using pull method, when I try to push back data I got the following SQLCE error:
"Another user has opened the database with different instance-level initialization properties. [ 32 ]"
Before calling the push method I did
SqlCeDatabase eCE = Helper.GetDB() as SqlCeDatabase;
eCE.CloseSharedConnection();
SqlCeConnectionPool.CloseSharedConnections();
SqlCeRemoteDataAccess rda = new SqlCeRemoteDataAccess();
rda.InternetUrl = webSynchronizationUrl;
rda.InternetLogin = webuser;
rda.InternetPassword = webpass;
rda.LocalConnectionString = eCE.ConnectionStringWithoutCredentials;
but after the assignment the LocalConnectionString is different from ConnectionStringWithoutCredentials, there are much more ssce parameters.
What I don't understand is:
why I'm getting this error even after closing the connection ?
Since the error report [32] the ssce conflicting parameters shoud be AUTO_SHRINK_THRESHOLD, FLUSH_INTERVAL and MAX_DATABASE_SIZE
I tried to cut & paste the same values from LocalConnectionString into app.config connection string, at first It seemed to work, but now I got the same error.
Any help will be greatly appreciated
Thanks
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Oct 18, 2006
If I create a database in SQL Express and then copy the MDF/LDF files and attach them to a machine running SQL Server 2005 Standard - will this new database have SQL Express limitations?
Are there good reasons not to do this and create the database in SQL Server Standard using scripts generated from the SQL Express instance instead?
Basically, I'm setting up a merge replication between Standard and SQL Express for a common database and I figure attaching a copy of the database created in SQL Express is the fastest way to get this started.
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Apr 15, 2007
I've been using my DotNetNuke database for weeks on my local PC with SQL Server Express. It attaches as a "User Instance". Basically, I am using all the DotNetNuke defaults. Today I decided to attach the DotNetNuke database in SQL Server Management Studio Express and peek at the tables. I attached the database; then I detached it when I was done. This all went well. But when I tried to open my DotNetNuke web site again I now get a message that it cannot connect. Attaching and detaching the database in SQL Server Management Studio obviously changed something about the database, but I don't know what. My connection string to the database has not changed.
The specific error displayed in the browser is:
ERROR: Could not connect to database specified in connectionString for SqlDataProvider
In event viewer is this message:
Exception information:
Exception type: SqlException
Exception message: Cannot open user default database. Login failed.
Login failed for user 'NT AUTHORITYNETWORK SERVICE'.
My connection string is this:
<add name="SiteSqlServer" connectionString="Data Source=.SQLExpress;Integrated Security=True;User Instance=True;AttachDBFilename=|DataDirectory|Database.mdf;" providerName="System.Data.SqlClient" />
Any suggestions about how I can correct this?
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Jan 30, 2008
I am using the following C# code to establish a SQL connect to a SQL database file:
// connection string
// attach a SQL database file to a local SQL server express instance
string _connectionString = @"Server=.SQLExpress; AttachDbFilename=C:BalanceDatabase_1.mdf; Trusted_Connection=Yes; User Instance=True";
// using System.Data.SqlClient;
SqlConnection _sqlConnection = new SqlConnection(_connectionString);
// open the connection
_sqlConnection.Open();
// do something
// close the connection
_sqlConnection.Close();
So far, the connection works fine.
However, next, I want to copy the database file to another folder. So the following codes:
// source database file name
string sourceDatabaseFileName = @"C:BalanceDatabase_1.mdf";
// target database file name
string targetDatabaseFileName = @"D:BalanceDatabase_1.mdf";
// copy database file
System.IO.File.Copy(sourceDatabaseFileName, targetDatabaseFileName, true);
Then the program came with runtime exception: "IOException was unhandled: The process cannot access the file 'C:BalanceDatabase_1.mdf' because it is being used by another process."
Is it because the database file was sill attached to the local SQL Server express instance? What can I do to bypass this problem? Detach the database file? or dispose the local SQL Server express instance?
Many thanks indeed!
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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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