User Instance=True Causes Invalid Connection String
Feb 14, 2006
Whenever I use "User Instance=True" as in the connection string below, I get an invalid connection string error. If I take it out, the connection string generates other errors.
"Provider=SQLNCLI.1;Integrated Security=SSPI;Persist Security Info=False;User Instance=True;AttachDBFileName=|DataDirectory|DbName.mdf;Data Source=.\sqlexpress;"
Removing User Instance=True always eliminates the invalid connection string message.
BTW, I tried both Data Source=.\sqlexpress and Data Source=.sqlexpress.
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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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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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Feb 20, 2007
I am trying to set up a ODBC connection to a remote database using the ODBC data source administrator. I am getting an error message complaining of an invalid instance(). The database I am trying to connect to does have a default instance and a named instance. Do I need to specify the instance name somewhere in the connection settings? I tried specifying the server name as <Remote computer IP Address>/<Instance Name> but this didn't work. Any ideas?
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Apr 1, 2008
Hi All,
Now i am using window authentication to login to SQL2005 Express. Everything is fine when I logged with administrator.
But if I use normal user to log in, then I can not connect to SQL database, even I am using user instance. I got the error message is:
Microsoft SQL Native Client (0x80004005)
Invalid connection string attribute
My connection String is:
Provider=SQLNCLI;Initial Catalog=***;Data Source=***;
Persist Security Info=False;User Instance=True;
Integrated Security=SSPI;
AttachDBFileName=directory***.mdf;"
Any idea? Thanks.
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Jan 7, 2008
Hi all,
We have recently been having some problems with our server, and im stuck for ideas of what to try next!
Basically we have a busy period every 2 hours where we have many records that need to be processed etc, but we are getting an error coming back saying 'Invalid connection string attribute'.
Now this would be fine but we are using a UDL and 80% of the records are going in fine and its just this few that are coming back with this error. This happens at 3mins and 55 secs past the hour everytime too.
Now i ran SQL profiler over this time and there are records and such being processed fine, then all of a sudden at 3min and 55 secs past there is a mass 'Audit Logout' noted in profiler.
It would seem to me it has nothing to do with the connection string as it was working perfectly fine before.
The processing is done using a VB6 dll being called through ASP on IIS 6.
Does anyone have any ideas on what to try next or advice?
Thanks all
Danny
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Sep 4, 2006
Hi.
I'm using SQLXMLBulkLoad to insert data into the SQL database. It worked with the test database on my PC but when I changed it into a VPS it throws an error: Invalid Connection String. This connection string that I used worked in my program before the addition of 'provider = sqloledb'.
Here's the connection string:
@"Provider = sqloledb; Data Source=CRM;Initial Catalog=Works;Persist Security Info=True;User ID=userid;Password=password;Asynchronous Processing=True";
Anyone?
heres the error code:
-2147217887
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Nov 15, 2007
The box I am trying to connect to is running two instances of SQL Server.
There is a SQL Server 2005 instance which is the default. There is a SQL Server 2000 instance which is named 'SQLSERVER'.
I can connect to the SQL Server 2000 instance no problem:<add key="ConnectionString" value="server=MYPCSQLSERVER;database=mydatabase;user id=****;password=****" />
However, I am having trouble connecting to the Default SQL Server 2005 instance. I have tried:
<add key="ConnectionString" value="server=MYPC;database=mydatabase;user id=****;password=****" />
but it doesn't work. I have tried explicitly setting SQL Server 2005 to use port 1434 (as SQL Server 2000 is running on port 1433), and then used:
<add key="ConnectionString" value="server=MYPC,1434;database=mydatabase;user id=****;password=****" />
but this doesn't work either.
Am I mssing something here? Any help much appreciated
Thanks...
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Jan 30, 2008
Hi All,
I created a SSIS package to import an excel spreadsheet into my data warehouse.
When I run the package it runs fine. When I created a SQL Job to run the package I get the following error:
Option "Source=D:HelpDeskImportBook2.xls;Extended" is not valid. The command line parameters are invalid.
Now if I look at my source connection string in the job it looks like the following:
Provider=Microsoft.Jet.OLEDB.4.0;Data Source=D:HelpDeskImportBook2.xls;Extended Properties=HDR=YES;EXCEL 8.0;HDR=YES";
Does anyone know why it appears that my connection string looks like it is being cut off and does anyone know how I can correct the problem?
Thanks,
Scott
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Sep 27, 2006
Hello, I had started my project with the express edition, then I switched to the pro one. The problem is that in my webconfig I still have .SQLEXPRESS and I don't know how to modify that to use the full version of Sql server. <add name="MyConnectionString" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|MyDataBase.mdf;Integrated Security=True;User Instance=True"providerName="System.Data.SqlClient" /> When I look at the surface area manager I can see that I have 2 instances running : MSSQLSERVER and SQLEXPRESS.When starting Sql Server Management Studio I can connect to 2 servers: NEWDELL and NEWDELLSQLEXPRESS.And when I try to replace SQLEXPRESS by MSSQLSERVER in the connectionstring, then it doesn't connect.I remember having lost connection already when playing with all these tools, so I pay attention now ! That's why any help would be really appreciated ! Thank you.
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Apr 13, 2008
Hi
I am trying to connect to SQL Express from Excel VBA using an user instance.
I have tried the following connection string:
Driver={SQL Native Client};Server=.SQLExpress;AttachDbFilename=full_path_to_mdf; Database=dbname;Trusted_Connection=Yes;
And I get the following error : Could not open new database 'dbname' CREATE DATABASE is aborted.
Any ideas on what I am doing wrong?
All I want is an Excel document to connect to a .mdf that is stored on a CD (The database will be readonly). I do not want the database to be stored on the users hard drive.
Many Thanks
MP
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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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Aug 21, 2007
Hi experts,
I have sql express installed on my machine and i'm using visual studio to create database files. After i've build a connection to my database file thru Server Explorer (choose Add attach files) i opened Management Studio Express and found that the new database has been attached to sqlexpress database engine----technically speaking it's under the user instance which i use to run my visual studio. right?? that's totally fine.My question is, after i'v closed the connection in visual studio, that attached database file still exist.I want it to be detached immediately after i've closed the connection in visual studio.How can i do that?
I've searched through internet and was told that sp_config can solve this problem by setting the user instance time out. I ran sp_config against my database but did not find that item. Could anybody give me some directions? thanks in advance.
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Dec 11, 2006
I created a database that will be distributed to my customers. This database is running on an Instance of SQL Server 2005 Express edition. I removed the admin logins from my SQL Server Instance so in theory, only my application connecting itself using the Sql Server autenthication will be able to be access the data (using "sa" having a password that I set at the installation).
For now, all this is working fine and after some tests, I haven't been able to access the data in any ways except by using the "sa" and the password my app is the only one to know.
But the problem is coming from a security leak when using User Instance. Indeed, I've been able to create a program getting the content from my MDF file. If somebody try to get connected using User Instance on his own SQL Server instance, he will be able to reach the data.
How could I prevent this to happend? Is there a property or something that could be set into the database that would prevent the database (mdf file) to be used with User Instance?
Thanks!
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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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May 7, 2008
I am working on a C# stored procedure for SQL 2005, and i've uncovered a couple questions.
First a description of the procedure:
I have a series of equations taking place to calculate a score based on activities in which the user participated in, that will give them an over all grade or rating. The calculations currently take place in the database, and I am moving this from T-SQL to C# CRL.
1. In order to connect the stored procedure to the database I use a SqlConnection and a SqlCommand to execute either dynamic sql or a stored procedure to return data to a data reader. Is there an easier way to connect to the database? In SSMS if i open up the query it knows what database i am connected to. Do I have to make a sql connection in C# stored Procedures?
2. I have multiple functions within the main C# Stored Procedure that I'm working on. This ends up requiring Multiple Active Recordsets. I must set this withing the connection string. Seeing as I'm using a named instance of SQL 2005, I now must put the userid, password, and server name into the code. Is there a more secure way to connect to SQL Server in a C# Stored procedure that allows MARS?
3. I encryped the connection string, and put it into the assembly, I wrote a decryption class, and in the procedure itself everytime I need to refrence the connection string, I call it, decrypt it, and pass it along. But my code to decrypt the connection string is in the compiled DLL, if the server was ever compromised the encrypted connection string and the key to decrypt it are sitting in the DLL. Is there a config file that I can use for C# Stored Procedures?
4. If I have to keep the connection string in the file, then I need to change that per environment. Example I have 3 test environments before production. So I would need to change the connection string for each file. That may be fine for one procedure, but what if I have 20, that will quickly get of hand?
5. Along the security lines, can the assembly for a C# Stored Procedure be called from outside the assembly? From a command prompt, or by a maliceous program? Or could it be called directly by a .NET application instead of going through a T-SQL Stored Procedure that is using
WITH EXECUTE AS CALLER
AS
EXTERNAL NAME [PROJECTNAME].[CLASSNAME].[METHODNAME]
Thanks
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Aug 15, 2006
Is there a way to find out my user id and password that should be used in my connection string? If I can not find this information out for myself, do I need to go to some type of system administrator.
Here is the connection string in my web.config file.
<connectionStrings>
<add name="SPK" connectionString="Server=localhost; User ID=AppUser;Password=meander;Database=atstdb01;
Persist Security Info=True" providerName="System.Data.SqlClient"/>
</connectionStrings>
When I access this connection string via my code, A little dialog box pops up with the following error message:
Login failed for user AppUser. Reason: Not associated with a trusted SQL Server connection.
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Jul 6, 2006
Hi. New to ASP.NET and first time posting.
My web app connects to a SQL database - SQL authentication.
Users login to the web app through the login server control. Once authenticated, it is my understanding that the user name and password are stored on the client as a cookie.
How do you programmatically get this user info and use it for the userid and password parameters of the connection string?
Is there a better way to use the authenticated user info to access a SQL database?
Thanks
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Oct 23, 2007
Hi All,
His there any way to build a connection string to sql server based on the current user credential?
I mean, intead of using
user id=Adminpassword=adminPass
Is it possible to do something like
user id= Context.User.IDpass=???
I'm asking cause, iI don't want to use impersonisation in my code.So that I can be sure logged user only sees what they can
(I'm a newbie, so this whole thing may makes no point(thanks for clarifying
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Nov 25, 2007
Hi;I am making a software (.Net) which is going to connect a ms sql server but I cant conect yet :(.1- I dont know what I have to type for user id (name)2- What is my password, it has been long time that I hvae installed it but I dont need any password with Microsoft SQL Server Management Studio Express which has windows authentication option. My software can work via internet or network. So I need to know my user name and password. I am using oledbconnection. Do I need any password?3- I visited www.connectionstrings.com already so I have the format of it.Thanks very much for any help...
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Mar 1, 2007
I’m working with a team of programmers who are in the process of upgrading an older ASP application to ASP.NET 2.0 (VB). The existing application connects to the SQL Server Database using different Logins, depending on the User logged into the ASP Application.
We are hoping to do the same using ASP.NET 2.0, although we haven’t been able to find a simple solution. The most feasible solution we have found includes programmatically trapping all the Selecting etc events and changing the SqlConnection at run time. This allow for ease during Designing of the Web Pages, but implementation requires adding code to each web page (>100 pages).
We are hoping there may be a simple solution which can be implemented once for the application where the event can be trapped at the application level, and the SqlConnection set at this point. Or possibly another type of solution such as creating a new class etc that can be used?
Does anyone have a simple solution where the username / password for the Database Connection can be set at run time?
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Apr 30, 2008
I'm trying to setup a dynamic ole db connection using the SA user ID, it has to be dynamic because the server name will change and it has to be SA because we're pulling information from system databases that some users don't have access to.
If I setup a regular static connection using SA credentials it works like a charm of course. When I create an expression to use the User:erver variable it doesn't work, it throws an error message saying that "The login failed for user sa" among other things, I'm thiking that the sa's password is not being saved.
Where exactly do I place a password for dynamic connections using sql server users? On the connection string? On the password property of the source? Any ideas?
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May 24, 2007
Hi All...
I am trying to move my site (incomplete) for testing and I am finding that the Db connection process to be
the most difficult, well back to my problem. I can't seem to get past this error and am frustrated with overall
connectivity problems. Please help!!!
===================================================================================
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) +735123
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:2.0.50727.210
Now you all must admit that, if your somewhat new to this databasing, It's a ***.
The source for my application is Visual Web Designer 2005 Express
It is an ASP.Net driven site with membership roles and all the good stuff.
the latest theory is that I need to change the provider config in the web.config file from AspNetSqlProvider
to something else. Most of my complications and frustrations come from GoDaddy and no access to the
shared server (understandibly).
I hope I gave enough info for help and not too much..
Dave
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Feb 18, 2007
Hi, I am deploying my web through a web hosting services which provides SQL database support. I got following errors whenever I try to open my webpage,which never happen when I run my web on the local machine. I have my connection string configured in my web.config as below:
<add name="ArtHouseConnection" connectionString="Server=serveripaddress; Integrated Security=True; Database=arteh3_database;User Id=username;Password=password;" providerName="System.Data.SqlClient"/>
<add name="ASPNETDBConnectionString1" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|ASPNETDB.MDF;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"/>
This is the source code where error was generated:
public static class ArtHouseConfiguration
{
//cache connection string
private readonly static string dbConnectionString;
//cache data provider name
private readonly static string dbProviderName;
private readonly static string siteName;
//initialize constructor properties
static ArtHouseConfiguration()
{
dbConnectionString = ConfigurationManager.ConnectionStrings["ArtHouseConnection"].ConnectionString;
dbProviderName = ConfigurationManager.ConnectionStrings["ArtHouseConnection"].ProviderName;
siteName = ConfigurationManager.AppSettings["SiteName"];
}
and finally this is the error mg I got:
Object reference not set to an instance of an object.
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.NullReferenceException: Object reference not set to an instance of an object.Source Error:
Line 30: static ArtHouseConfiguration()
Line 31: {
Line 32: dbConnectionString = ConfigurationManager.ConnectionStrings["ArtHouseConnection"].ConnectionString;
Line 33: dbProviderName = ConfigurationManager.ConnectionStrings["ArtHouseConnection"].ProviderName;
Line 34:
Source File: d:inetpubvhostsartehouse.orghttpdocsApp_CodeArtHouseConfiguration.cs Line: 32 Stack Trace:
[NullReferenceException: Object reference not set to an instance of an object.]
ArtHouseConfiguration..cctor() in d:inetpubvhostsartehouse.orghttpdocsApp_CodeArtHouseConfiguration.cs:32
[TypeInitializationException: The type initializer for 'ArtHouseConfiguration' threw an exception.]
ArtHouseConfiguration.get_EnableErrorLogEmail() in d:inetpubvhostsartehouse.orghttpdocsApp_CodeArtHouseConfiguration.cs:74
Utilities.LogError(Exception ex) in d:inetpubvhostsartehouse.orghttpdocsApp_CodeUtilities.cs:100
ASP.global_asax.Application_Error(Object sender, EventArgs e) in d:inetpubvhostsartehouse.orghttpdocsGlobal.asax:20
System.EventHandler.Invoke(Object sender, EventArgs e) +0
System.Web.HttpApplication.RaiseOnError() +182
Anyone got any ideas? thank you!
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Jul 14, 2006
I have a trigger that writes changes to an audit table. In the case of Updates, I only want to write out the fields that have actually changed. My code for COLUMNS_UPDATED evaluates to true for all varchar fields, even when they haven't changed. All other scenarios appear to be working correctly.
WHILE @field < @maxfield
BEGIN
SELECT @field = min(ORDINAL_POSITION) FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = @TableName AND ORDINAL_POSITION > @field
SELECT @bit = (@field - 1 )% 8 + 1
SELECT @bit = power(2,@bit - 1)
SELECT @char = ((@field - 1) / 8) + 1
IF ((@TriggerType = 'I') OR (@TriggerType = 'D') OR (@TriggerType = 'U' AND substring (COLUMNS_UPDATED(),@char, 1) & @bit > 0))
BEGIN..........
END
END
Ideas? Thanks!
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Jul 20, 2005
I have a SQL database with an Access front end. In the database Ihave a read only and a read write role. When a read only user opensthe database I want all the fields on the form to be locked so thatthe user will not try to change data and get an error from the server.Right now I am doing that with a table. But it's a hassle to have tomaintain a table when if I could answer the question is the currentlylogged in user in the read write role?My server is running SQL Server 2000. So I was wondering if I couldwrite a function to do this? The function would take the role beingchecked as a text parameter and return true if the currently logged inuser is in that role or false if he/she isn't.
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Mar 15, 2008
Hi
I have a DLL deployed in SQL2005 which uses Thread pool. Since DLL exists in DB we can directly access it using context connection = true.
In my case the following works fine, if i execute the same out side Threadpool
SqlCommand cmd = new SqlCommand("select 1...", connection);
SqlContext.Pipe.ExecuteAndSend(cmd);
When i execute inside threadpool, either by passing opened connection object, or tried to open connection to "context connection = true" i am getting following error.
System.InvalidOperationException: The requested operation requires a Sql Server execution thread. The current thread was started by user code or other non-Sql Server engine code. at Microsoft.SqlServer.Server.SmiContextFactory.GetCurrentContext() at Microsoft.SqlServer.Server.SqlContext.get_CurrentContext() at Microsoft.SqlServer.Server.SqlContext.get_Pipe() at hiqidty4.hiqidty4.Identify_Search(Object identifyin)
Let me know if i am missing any more here
Thanks in advance
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Jul 31, 2015
I have a cube that has a Dimension set up with several values some of which are bools. While Browsing in Excel or SSMS, two new values, when used as a filter shows (All) (Blank) and (True) for selections instead of (All) (True) and (False).Â
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