Impersonate And Sqlexpress
Oct 2, 2006
I don't want to use "network service" account for app poll identity for asp.net applications because of security reason. But I try to use sqlexpress I receive following error message.
"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."
But when I try to connect master db with same account (test) there is no problem. Then I create to user profile for "test" account but same error occurred.
Does anyone know how I can resolve this? Thanks!
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Sep 24, 2007
Say i have two login accounts in sql server 2005,I want to do context switch operation for two accounts.
I want to know to get impersonate permission....
any suggestions?
thanks
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Mar 14, 2007
I am currently logged in as local admin on my laptop, and I want to connect to clients SQL Server 2005.
I can't use my local admin and have to use company network login.
How can I impersonate my network login when connecting to the SQL Server when using local admin account?
Peter Larsson
Helsingborg, Sweden
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Mar 17, 2004
Hello,
On my SQL Server 2000, I have successfully created a linked server to my Exchange 2000 server (located on the same physical computer). I can't send request and everything is fine.
But now, I would like to apply the "Impersonate" setting. The big problem I've got is that Exchange doesn't use a login and password for the authentification but use the Windows credentials.
I have try things like :
login : <domain name><username> with the real password
login : <username>@<internet domain name> with the real password
but that doesn't work.
I would like to know if there is a way to "impersonate" user log on the SQL Server when they try to use the linked server to Exchange Server.
Thank a lot
Felix Pageau
fpageau@NOSPAM.str.ca
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Dec 26, 2007
I am calling SqlContext.WindowsIdentity.Impersonate() within a CLR Stored Procedure and getting the following error:
System.InvalidOperationException: Data access is not allowed in this context. Either the context is a function or method not marked with DataAccessKind.Read or SystemDataAccessKind.Read, is a callback to obtain data from FillRow method of a Table Valued Function, or is a UDT validation method.
The CLR Routine does not do any kind of data accees (as far as SQL is concerned).
Here is the routine:
[SqlFunction(
DataAccess = DataAccessKind.Read,
SystemDataAccess = SystemDataAccessKind.None )] public static int CallService( string sServer, int iPort, string sPath, SqlXml cSqlXmlRequest, out SqlXml cSqlXmlResponse ) { string sXmlResponse = string.Empty; WindowsImpersonationContext cImpersonationContext = null; try {
cImpersonationContext = SqlContext.WindowsIdentity.Impersonate(); sXmlResponse = SoapTransport.CallService( sServer, iPort, sPath, cSqlXmlRequest.Value );
...
} catch (...) { throw; } finally { if ( cImpersonationContext != null ) cImpersonationContext.Undo(); } return SQL_SUCCESS; }
The only SQLContext method/properties that are called is the WindowsIdentity. Further, if I "push" the SqlContext.WindowsIdentity.Impersonate(); call inside CallService, everything work. (It also works correctly if I leave the call of and change the execution identity of SQLServer).
Any ideas as to why this error is occurring and how to resolve it?
Thanks.
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Dec 26, 2006
Hello all,
I have a quick question. The sql reporting server is on server A, and the actual data for the report is on a sql server 2005 called server B. When I am actually developing my report and click preview, everything works perfectly using windows authentication. However, whenever I publish and try to view the report, i get this error:
An error has occurred during report processing.Cannot create a connection to data source 'serverB'.Login failed for user 'NT AUTHORITYANONYMOUS LOGON'.How do I change the login for this datasource while still using windows authentication and not mixed mode?
Thanks
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May 26, 2008
Hi all,
I encountered a problem when I tried to generate .rdl report in my PWA website integrated with report server. In the "Manage Data Source", when I set the credential type to "Windows authentication (integrated)", it works.
However, when I changed it to "Stored credentials" with the windows account as the Login, the following error occurs:
An error has occurred during report processing. (rsProcessingAborted)
Cannot impersonate user for data source 'CustomizedDB'. (rsErrorImpersonatingUser)
Logon failed. (rsLogonFailed)
Logon failure: the user has not been granted the requested logon type at this computer. (Exception from HRESULT: 0x80070569)
Does anyone know the reason behind? Thanks in advance.
The problem also happens when "Prompt for credentials (use as Windows Credential)" is used.
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Mar 13, 2007
I can't start SQLEXPRESS.
The SQL ERRORLOG shows: Error is 3414, Severity 21, State 2 and says: "An error occurred during recovery, preventing the database 'model' (database ID 3) from restarting." Just prior to this, I get a warning: "did not see LP_CKPT_END".
Any thoughts why this might be and how I can fix this?
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Sep 21, 2006
hiya,
I have sqlExpress and sqlServerManagementStudio on my XP pro box.
Will the installation of sqlExpress (Advanced Services) cause any problems?IS thereanything that I shold be aware of in advance?
many thanks,
yogi
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Jan 19, 2007
Hi All,
I have created an installation application which will install the application with SQL Express and .NET Framework 2.0.
If i install this application in a Fresh system(i.e which is not having SQL Express), it is installing the application with new database instance successfully.
But if i try to install the same in a system which is already having SQL Express, throwing "Object reference exception" because it is not able to create the new database instance.
Can anybody help me out .
Regards,
Doppalapudi.
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Mar 21, 2006
Because of numerous problems trying to get sqlexpress working, I uninstalled it with the intention of reinstalling (via Add or Remove Programs). However, now when I try to reinstall it, I get a message that the I am not making a changes so it won't let me install it.
I do have sql server 2005 developer's edition installed; is that the reason? and does that mean I cannot have both installed on the same machine?
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Jul 1, 2006
Hi All,I've been struggling with this for hours...Could someone please advise me on how to convert my current File based SQL Server Express website to a Server based SQL Express one.Particularly interested in what I need to do in the SQL Express management tool, changes I need to make the projecvt itself and changes needed to get IIS to understand things have been changed.Thanks,Martin.
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Aug 6, 2006
Hi
I'm pretty new to all of this. I downloded a starter kit and am a bit confised as to SQLExpress. I have SQL Server already installed and just wondering what the option are.
I am currently using Visual Web Developer Express Edition and in the config file data source is SQLExpress and can't go any further. I don't want to mess with my current setup so just want to get some sugestions first.
Anyway hope this makes sense.
Thanks
GP
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Apr 2, 2007
I have just created a website with membership just using the standard SqlExpress auto generated file
Everything works fine until I upload it to webspace :(
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: 26 - Error Locating Server/Instance Specified)
I don't have SQL Server 2005 :(
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Apr 3, 2007
if my SQl server/COnnection is "SQL EXPRESS"..Im using an Import name "Import System.SqlClient" on every web form that i have...
as well as other SQl command name like "SQLConnection,SQLCommand etc..."is this the correct that im using all sqlcommand in my webform???
well sorry for this im just new..and one more thing..can i include Ado.net on it if my connection is "SQLEXPRESS" just i said?
Thanks for the answer....
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Jun 20, 2008
Hi
I am new to this forum .
I am running through few problems for sqlserver account settings .
I) My registery key entry for MSSQLserver just has a client folder .
2) My sql server configuration manager just has
sqlserver 2005 services , native client configuration and 2005 network configuration.
I can't see any server name or databases under it.
3)I normally work on EMS lite so I can see my ./SQLEXPRESS as server and databases under it and i can create logins etc ..I assigned db_owner role to one of my recent created database.
but when I try to connect it says :
The user is not associated with sqlserver connection.
5) i have sqlserver express service running, vss and sql server browser running.
I googled and searched for the solution and it says the authentication mode should be turned to mix mode form win authentication.
But from where. Have i missed some installation .I am able to connect to my other database from EMS.
Please help me out.
Thanks in advance
SJ
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May 25, 2007
I am trying to write an application for a MSSQL database, using SQL Express,and Visual Studio (Express edition)I tried to connect to an existing database (named testing) but to no avail.Visual Studio claims the database does not exist.Any ideas?TIA--Q: What is the difference between a mathematician and a philosopher?A: The mathematician only needs paper, pencil, and a trash bin for hiswork - the philosopher can do without the trash bin...
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May 27, 2007
Installation of SP2 in step "Feature Selection" shows SQLEXPRESS unchecked and can''t be edited/checked.
I tried it many times on different servers with different OSes, etc
Does it mean that SP2 for Expres Edition should be downloaded and applieв separately?
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Jul 19, 2006
Hello,I am just getting reaquainted with programming and all. I work in GIS mapping and am having diffilculty using a ASP.net internet Map site and adding records to a needed database.I would like to be able to add records to a linked SQLExpress table when the user clicks on a map location. I adapted the following code snippet from an example that does what I would like only using an .mdb file.CODE: // create connection to database var connection; connection = Server.CreateObject("ADODB.Connection"); connection.Open("Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=OutdoorsExp;Data Source=NOLOGOSQLEXPRESS;"); status = "Can't access 'FishSQL' table."; // create recordset var recordset; recordset = Server.CreateObject("ADODB.Recordset"); recordset.CursorType = 1 recordset.LockType = 3; recordset.Open("dbo.FishTable", connection); status = "Can't append new record."; // append record for clicked location recordset.AddNew(); recordset.Fields("LongitudeI").Value = xco; recordset.Fields("LatitudeI").Value = yco; recordset.Update(); recordset.Close(); // release the .mdb file connection.Close();However, this does not add anything to the SQLEx table. What am I missing? I am thinking that it might have something to with the primary key.I had a table with way more columns then just lat/longs (as above) but only coded it to add data to the latitude and longitude fields. Nothing got added of course. Would have to add data to every field that doesnt allow nulls.How do I generate a random, unique ID for a primary key on the fly and for example add it to the appropriate column.Thanks you in adavnce for any insights.
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Jul 22, 2006
To be as brief as possible:I had Visual Studio 2005 installed with SQLExpress 2005. worked reallll good :) I needed to convert an excell spreadsheet to SQL, so I migrated it to Access. Then the upsizing wizard would not/could not create an sql table with the data. Just would not take the data when the table was created. Argh.FINALLY figured out that the SQLexpress 2005 doesn't come with import/export.So I uninstalled the sqlexpress and installed SQL 2000 - Developer. Veeola, able to convert and created the table I needed.Now Visual Studio 2005 won't let me touch the sql file, says it requires sql server express 2005.My ISP does not support SQL 2005 yet. Is there anyway to get Visual Studio 2005 to work with SQL 2000 (only?)If I install SQLExpress over again, will it create problems when I go to publish my website, and more importantly right now, will anything bad happen when I reinstall sql express, or do I need to uninstall SQL 2000 first? Thanks...
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Sep 29, 2006
hi:I set up a DSN via Adim tools, then I specify the connection string as "DSN=UserAppSample;Trusted_Connection=True".When I run my aspx page, it says: ERROR [42000] [Microsoft][ODBC SQL Server Driver][SQL
Server]Cannot open database "UserAppSample" requested by the login. The
login failed. It asks for login, but I use windows authentication. So what is wrong with this? :(
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May 4, 2007
** For those 20 users (or fewer) who've read http://forums.asp.net/thread/1692306.aspx, I'm sorry that I ask the same question.Like I said above, what is the limitation of SQLEXPRESS, in terms of performance and scability?I'm creating a new webboard application that will replace the old one. I intend it to handle 200 concurrent users + 70000 records (9 years of data)The current system use Microsoft Access, which is reaching it's limit in performance and size. I took a look in the SQL Server product information page : http://www.microsoft.com/sql/prodinfo/features/compare-features.mspx.It didn't tell me what I want, like how many connections it can handle, for example.If there are limitations that might cause my application to not reach the required specification (above), I may need to switch to MySQL. I've no intention buying a licensed SQL Server 2005.Thanks in advance.PS: Why there're so few users viewing my posts? Anyone know a more active forum that may help me?
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Oct 2, 2007
i'm using sqlexpress edition for my application and i'm wondering whether i will be able to execute the below sql statement
use masteralter database <dbname> SET ENABLE_BROKER
when i execute the above two lines its executing from last 30+ minutes...
i'm wondering will that support in sqlexpress edition ?
also, in order to use sqldependency do i have to enable broker service?
thanks.
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Nov 28, 2005
Ok it seems to me that if you use the ms recommended code to connect your apps using the app_data folder etc, that the dbs never show up in the SQLExpress manager.So I can't back them up like I can databases I connect to SQLExpress the 'old fashioned way'. Only 2 out of 6 dbs are visible in SQLExpress manager.What is the proper way to do this?Thanks,Jamey
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Dec 6, 2005
1. Is there a white paper on how to upgrade an SQLExpress DataFile to a SQLServer attached database?
2. More importantly: Is there a way to upgrade a Beta 2 SqlExpress database to a RTM version? This lack of compatibility between beta 2 and RTM is killing me. Are their any resources for this transformation? Would be great!
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Apr 17, 2008
As of right now I have two networked machines. I have a sql database on one that I have no problem connecting to, but I cannot connect to the database from the second machine.
From the second machine, I've come up with this connection string after all my research...
"server=[MACHINE_NAME]SQLExpress;databse=[NAME];User ID = sa;Password=[PASS]"
I keep getting a cannot connect to database error.
Any ideas?
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Apr 23, 2008
I know this isn't exactly SQL help, but I alwasy get great help here and thought someone might know why I'm having problems. I'm trying to map to a drive where I have a SQLExpress database on another computer within a workgroup. This is the cmd line I'm using...
NET USE * \XPPRO1SQLExpress /USER:Admin /SAVECRED /PERSISTENT: YES
I'm thinking the problem is with the * (which names the new drive with the next available letter), or that I have to use a password. Everything I've found says nothing about specifying a password though.
The error message I get says "A command was used with conflicting switches."
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Dec 3, 2005
I just reinstalled SQLExpress and all the dbs that I created are no more linked. The files still exist in the folder where the current version stores dbs (...Microsoft SQL ServerMSSQL.1MSSQLData) but they are not "linked" (don't know the right term).
Is there anybody who could help me how to "relink" these dbs to the actual .SQLExpress instance?
Thank you very much for any help!
Regards,
Fabian
my favorit hoster is ASPnix : www.aspnix.com !
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Feb 14, 2006
Hi friends
I insalled Visual Studio 2005 standard edi on XP machine. as you all know it also installs sqlexpress. i want to uninstall this sqlexpress as i also have sql server 2005 standard edition on my machine.
but i dont see any option to uninstall in add/remove programs or in start menu for sqlexpress.
any ideas on this ?
Thanks for your help.
Cheers
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Sep 1, 2006
I made a big mistake and deleted this program and now I cannot reinstall it. I get error messages stating that an instance is already on my machine and I need a unique name to restart install. I also get messages that say to install from the command line but I cannot get there the only access I have is error reporting. Is there any way I can make a FREASH install of this program????
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Jul 31, 2007
Hello,
I have finish building my ASP.NET site using VS 2005 and it compile just fine. Than I try hosting it to the web via IIS v5.1 and I am getting permission error from SQL express.
I have posted a detail question in experts-exchange.com and since you need a user account to even view the thread, I have taken the liberty to save the thread as .html file and host it to my ISP site. You can see the detail problem I am having here: http://users.accesscomm.ca/mm/EEdetail.html
I am going to list out some stuff I have done:
1. I have two database that need access, the ASPNETDB.mdf for user login and another database (PhotoDataBase.mdf) to store information relating to the photo I uploaded to my ASP.NET site.
2. I have already follow this How to site: http://blogs.msdn.com/sqlexpress/archive/2005/05/05/415084.aspx and setup:
- TCP/IP enable, as shown here:
- I have started SQL Browser service
- The firewall part I am not so sure about. I am currently using Zonealarm....
3. I have installed SQL Server Management Studio Express(SSMSE) and attach the two database to it.
4. I have set SSMSE server properties to accept both SQL and window authentication.
5. I have made sure that both database "read only" setting to false
6. I have setup SQL login with User ID = SQLLOGIN
Here is the original connection in web.config:
<add name="ConnectionString"
connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|Da
taDirectory|PhotoDataBase.mdf;Integrated Security=True;User Instance=True"
providerName="System.Data.SqlClient" />
and here is the new connection I just type in web.config that replace the original one:
<add name="ConnectionString"
connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|PhotoDataBase.mdf; Server=MINGDESKTOP; Integrated Security=False; uid=SQLLOGIN; Password=XXXXXX;"
providerName="System.Data.SqlClient" />
and the error i get are the follow:
Server Error in '/' Application.
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
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.
7. I did haven't done much to ASPNETDB.mdf yet and the error i get right now are the following:
________________________________________
__________________
Server Error in '/' Application.
Cannot open user default database. Login failed.
Login failed for user 'MINGDESKTOPASPNET'.
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: Cannot open user default database. Login failed.
Login failed for user 'MINGDESKTOPASPNET'.
_______________________________________________
Please help! I am really running out of ideas.... and I need to have this setup in a few days....
Thanks!
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Dec 1, 2006
Hi, I'm using Microsoft SQL Sever Management Studio Express. But all of a sudden, if I clicked connect button, the messageBox pops up and it doesn't let me connect. It says "TITLE: Connect to Server
------------------------------
Cannot connect to YOUR-4105E587B6SQLEXPRESS.
------------------------------
ADDITIONAL INFORMATION:
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) (Microsoft SQL Server, Error: -1)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=-1&LinkId=20476
------------------------------
BUTTONS:
OK
------------------------------
I didn't have such a problem before. If someone could help to solve to this problem, I appreciate it. Thanks.
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May 18, 2008
I am a novice at working w/SQL and am trying to learn on my own... I download SQLExpress and installed it. However, I received a warning message that Internet Information Systems was not installed or enabled. I checked cpanel and it was not there. Figured out that I needed to check the windows components and attempted to enable it. I was asked for my XP Pro discs (which I can't find of course) in order to load admxprox.dll. How can I get a copy of that file so I can move forward???
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