Connecting To Sql Server From Asp.net Pages
May 27, 2008
Dear guys
I need to connect to a database from my asp.net page through internet. I encrypt sensitive data before sending them on the net. but I think about a more basic problem: what happens to login data when transfered on the net? I mean, if user name and password are captured by hackers, they can make more serious problems than they find some sensitive data. what shall we do? is there any way for securing sql server login itself?
Regards
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Jun 3, 2008
Hello,
Iam a new developer to asp.net, I have been trying to connect a database to a asp.net page but many times i failed. actually i dont want to connect just directly by dragging and dropping controls rather i wanted to bind controls like textboxes and comboboxes but at first i think i have to make querystrings to and sqlconnection to connect to the database. I mean i have to manually code all these items to get my pages connected. but most of the time i face the bug which is:
Server Error in '/WebSite2' Application.
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
is that because of the fact that i dont sql server management studio installed actually i tried the same process with some other pcs that does not have sql server insatlled but it was working pretty well, but now i dont have a sql server installed and the problem still insists.
hope i have clarified my problem, sorry if it is a bit lenghty
thanks and regards
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Oct 2, 2014
in microsoft doc there is written on the topic of BP Extensions with SSD's in SQL Server 2014: only clean pages are written to disk... does this mean data pages that have not been modified yet? or also those data pages that have already been modified, and where log has finished writing and the transaction has been marked as commited??
why are there clean data pages being written to L2 cache to make space for other not modified pages? I mean, shoudnt they be modified first, before letting other unmodified data pages into the Cache? I mean they have still to be modified..that makes no sense to me to page them out and page them in again just for other data pages...
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Jul 6, 1999
Does anyone know a workaround for the code page translation that occurs if you use bcp to
transfer data in and out of SQL Server. I have a table that I am losing certain characters in the
transfers.
SQL Server 7.0 has the -C code page specifier added to BCP to address this but I am running 6.5 currently.
Any ideas on how to deal with this?
Thanks,
Phil
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Oct 28, 1999
I cannot connect my ASP pages to my SQL Server 6.5 Database. I've got a login error.
Any idea?
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Jul 20, 2005
Dear All,I have developed a Data Access Page with Access as a project. It isconnected to a SQL-Server database. I try to edit the data in the table andam not able to do so. I might be missing some permissions. I have changeda number. What am I missing?Thanks in advance.Jeff Magouirk
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Aug 1, 2007
Hi every body
I have developed an reporting solution for a customer with reporting services and using report builder.
When he connect to http://localhost/reports , he see the page like
http://img215.imageshack.us/img215/583/folderhl1.jpg
But i would to custom design of my default page, and other maybe. Where i can do it ?
Thanks all
Regards
Erwan Sarcelet, France
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Jun 15, 2008
hi,i'm new to deploying asp.net pages with built in asp.net login controls over the web server. i've uploaded my asp.net pages with web.config and placed my ASPNETDB in App_Data folder on the webserver as it was placed in local machine. but it dint work and displayed 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) 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
i also enabled the TCP/IP connection on my local machine to accept remote connections.. Can any1 please provide me a step to step guide on how to deploy the webiste?
Thanking u in advance.
Regards
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Jul 24, 2015
I am reading the official documentation on pages and extents. I've also read an article on the official SQL Server Blog (sadly, I can't link as a new member). These articles do a good job explaining what an extent is.Why use extents at all?I can't find a good example anywhere of how grouping pages into extents make SQL Server work more efficiently. Any good example of what SQL Server would be missing if it didn't have extents at all, and how extents fix this?
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Apr 5, 2008
Hi ,
I have developed some report in Sql Server Reporting services my Page orientation is portrait that is report height and width are 8.5 and 11 respectively and margins are set to 0.3 in when it is printed the pages are printed more that actually viewed Pages.
I need help from someone.
Thanks,
Nikhil
response2nikhil@hotmail.com
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Jun 16, 2008
I am having an asp.net web site hosted in my machine's IIS (5.1). This aspx files are accessing data from an sql server 2000 database located in another machine. While i am trying to open a connection from the aspx files to the database, an error showing login failed for that user. Not a trusted sql server connection. so i unchecked the "allow anonymous access" in the directory security. But now its working from my machine (the web server, localhost). but when i try to access the aspx files from another machine with my system ip, the same error exists-Login failed for the user and not a trusted sql server connection.
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Jul 3, 2007
I have designed a fairly simple report in report designer that uses an analysis services cube as its input, and a basic matrix object as the primary design component. Cube performance either via object browser in Analysis Services or via connection from Excel is great. It does exactly what you build a cube for, i.e. it builds aggregations you can get to quickly. However rendering from a report designer report within Report Manager is a different story.
Even though this report is being rendered from an execution snapshot, it is painfully slow at opening and closing different levels of drill down. The report does have six levels of drill down, which I am sure is a factor. If I use a smaller dataset, performance does become more acceptable. However, I don't consider the requirements of my report to be all that extraordinary.
My conclusion thus far is that larger data sets with many possible page renderings are not the best candidates for HTML rendered reports. In this case Microsoft's cube analysis add-in to Excel might be a better choice. Thoughts and feedback on either how to improve the rendering speed or other presentation alternatives that would perform better would all be welcome.
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Dec 28, 2006
Please add some more substantial needed info in ALL the web pages of "SQL Server 2005 Compact Edition RC1, Release Candidate 1", like at:
http://support.microsoft.com/kb/920700
for:
1) Clarifying the confusing name changes of the Mobile Edition to Everywhere Edition then to CE,
2) Giving installion instructions of the RC1 for mobile devices
Thanks,
Alpoge
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Feb 5, 2007
is there a step by step paper to get there? here is what i need to consider. I Iwill have many customers that will need their own set of records and access pages "branded for their company" each customer will have many clients. I am hosting this application on a windows 2003 server with SQL 2005 server enterprise.
I am using windows authentication, I have created a username in windows, then i added the windows user in SQL management studio in security, granted "DB Read" and "DB write" and again under the database security tab. still from the web authentication fails. i must be nissing a step or two?
I expect to set up a username for each database as i setup new customers.
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Mar 27, 2007
I want to make the ReportServer and Reports pages secured i.e not allow anyone to access these pages via browser.
I login to a machine as user ABC. This user does not have permission on reports.
if this user accesses ReportServer or Reports, expected is that access should be denied unless I enter
an account that has been given permissions.
for e.x. following pages should be secured.
http://<reportserver>/Reports
http://<reportserver>/Reports/Pages/Report.aspx?ItemPath=%2f<Report_Project>%2f<Report_Name>
http://<reportserver>/ReportServer
http://<reportserver>/ReportServer?%2f<Report_Project>&rs:Command=ListChildren
Actual result is that I am able to access these pages. When I click on the report I get the error (this is expected)
but then user ABC should be shown error on first page itself.
In short, for all the accounts that do not already have permissions on reports, the server should challenge me to enter an account and password.
Is there some setting in the configuration file?
Any help would be appreciated
Thanks in advance!
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Jan 22, 2008
My site works fine in VWD2008 express, but I get this error when I try to use it on my live website.
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.
According to this article: http://support.microsoft.com/kb/914277 I am supposed to:
1.
Click Start, point to Programs, point to Microsoft SQL Server 2005, point to Configuration Tools, and then click SQL Server Surface Area Configuration.
Ok, there is no such program in this folder. The only thing in there is "SQL Server Error and Usage Reporting"...
The other thing I am greatly concerned with is this: All is want is for my webpages to be able to access my database for user authentication. I DO NOT want to grant the internet rights to remote connect to my database.
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Dec 10, 2007
I get the following error and have been trying to figure out why I keep getting it. Initially, I had placed my project under wwwroot folder and ran it under IIS and it gave this error. Then I moved it to my local C drive and same thing. I am sharing this project with two other co-workers and all our config files and code files are same...they don't get this error but I do. I checked that SQL Server Client Network Utility has TCP/IP and the 'Named Pipes' enabled. I thought maybe I have setting in the Visual Studio 2005 that I'm not aware of that's causing this problem...it can't be the server since my co-workers aren't having this error and can't be anything in the code since all of us are sharing this project through vss. I dont' think using different version of .net framework can create this error. I changed the version from 2.0 to use 1.1x and it gave same error... Any help would be greatly appreciated. Thanks in advance.
Server Error in '/RBOdev' Application.
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace:
[SqlException (0x80131904): An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +739123
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188
System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject) +685966
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +109
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +383
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +181
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +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.UI.WebControls.WebParts.SqlPersonalizationProvider.GetConnectionHolder() +16
System.Web.UI.WebControls.WebParts.SqlPersonalizationProvider.LoadPersonalizationBlobs(WebPartManager webPartManager, String path, String userName, Byte[]& sharedDataBlob, Byte[]& userDataBlob) +195
System.Web.UI.WebControls.WebParts.PersonalizationProvider.LoadPersonalizationState(WebPartManager webPartManager, Boolean ignoreCurrentUser) +95
System.Web.UI.WebControls.WebParts.WebPartPersonalization.Load() +105
System.Web.UI.WebControls.WebParts.WebPartManager.OnInit(EventArgs e) +497
System.Web.UI.Control.InitRecursive(Control namingContainer) +321
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Control.InitRecursive(Control namingContainer) +198
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +692
Version Information: Microsoft .NET Framework Version:2.0.50727.832; ASP.NET Version:2.0.50727.832
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Jan 24, 2008
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,
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Apr 10, 2008
Hi,I have SQL Server Express Edition. I tried working out some ASP.NET Labs in my local system. Here is the link of the Virtual Lab which I tried. http://msevents.microsoft.com/CUI/WebCastEventDetails.aspx?EventID=1032286906&EventCategory=3&culture=en-US&CountryCode=USI recieve this error in my local system. 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)I tried working out solutions from various websites. But the no solution is effective. Could anyone help me in solving this issue.
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Sep 20, 2007
I am trying to connect to a sql server 2005 server using either windows auth or sql server auth but I can not. When I click on the connect button to connect to a server it never connects. I can not cancel once I press connect. It never times out after I press connect. I removed all registered servers that were registered previously. I have uninstalled all software that involved sql server (and sql2000) run a registry cleaner(not microsofts), installed the software to a new directory and still I can not connect to the sql2005 server (the only db).
Any ideas?
I am running Windows XP with latest services packs for both windows and sql server. I have visual studio 2005 installed on my machine and I have had sql express installed on it previously.
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Jun 20, 2007
Dear All,
I am trying to connect to a remote sql server 2005. So I have install the Microsoft SQL Server Management Studio Express. When I try to connect I get the error below.
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) (Microsoft SQL Server, Error: 53). Can some one please help. I have even port no 1533 on my pc. Thanks.
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Apr 15, 2008
An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this
I use Microsoft Windows Vista Home Professional
I have already installed to my computer Microsoft SQL Server 2005 and SQL Serves Express. I used to be successful to connect to the SQL Server but now I CAN NOT.
Not: I try to run SQL Server 2005 but I can not, even I logged on to my computer with an administrator rights. On the other hand I can start and stop the SQL Server Express easily.
As a result, how can I solve this problem.
Thanks in advance.
Bilgin Kılıç
Additional Details
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)
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Mar 2, 2008
My environment:
Home PC
Vista Ultimate
SQL Server Developer 2005
I'm about to go absolutely nuts. I've tried so many things including:
1) Of course making sure Remote connections and both TCP/IP and named pipes are enabled for SQL 2005
2) Verified my connection string works. I even tested it in Enterprise Library using the tool and it connects successfully via windows authentication
3) Made sure of course my logged in user is a member of the administrator group and that my user in SQL 2005 logins has db_owner and full rights to the DB I am connecting to. I also made sure the NT AUTHORITY as well as the 3 sql service users have db_owner rights as well as the adminstrator in the SQL Server logins all have db_owner to the DB
4) Started the SQL Server Browser service, SQL Server DB engine, and SQL Server Agent
5) Made sure my site is setup right in IIS 7. I checked the connection string in there as well as it shows up in IIS7 in one of the sections. Using Windows authentication and it is enabled for my site
6) Tried running the .net site using both localhost (IIS) and also tried using the Visual Studio built-in web server. Both give this message still
Error Details:
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.
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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)]
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +800131
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +186
System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, SqlConnection owningObject) +737554
System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +114
System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +381
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +181
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +173
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +357
System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +30
System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +424
System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +494
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +82
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105
System.Data.SqlClient.SqlConnection.Open() +111
System.Web.SessionState.SqlStateConnection..ctor(SqlPartitionInfo sqlPartitionInfo) +79
[HttpException (0x80004005): Unable to connect to SQL Server session database.]
System.Web.SessionState.SqlSessionStateStore.ThrowSqlConnectionException(SqlConnection conn, Exception e) +227
System.Web.SessionState.SqlStateConnection..ctor(SqlPartitionInfo sqlPartitionInfo) +349
System.Web.SessionState.SqlSessionStateStore.GetConnection(String id, Boolean& usePooling) +285
System.Web.SessionState.SqlSessionStateStore.SetAndReleaseItemExclusive(HttpContext context, String id, SessionStateStoreData item, Object lockId, Boolean newItem) +178
System.Web.SessionState.SessionStateModule.OnReleaseState(Object source, EventArgs eventArgs) +476
System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +92
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64
Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433
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May 20, 2006
Hi,
I've been trying to fix this error for two days! and I really need the advice of the experts please!
Computer XP Professional Service Pack2, SQL Server 2005 and Visual Studio 2005 (both Standard Edition)
ConnectionString:
<connectionStrings>
<add name="MyConnectionDB" connectionString="Data Source=(MyServerSqlServer2005);Initial Catalog=MyDB;User ID=sa;Password=PasswordforSA" providerName="System.Data.SqlClient" />
</connectionStrings>
C# code
string myConnectionString = ConfigurationManager.ConnectionStrings["MyConnectionDB"].ConnectionString;
SqlConnection myConnection = new SqlConnection(myConnectionString);
myConnection.Open();
Here I get the 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)"}
What I checked so far:
ServerName and Instance Name OK!
Database, Username and password OK!
SQL Server 2005 Surface Are Configuration - Remote connections using both TCP/IP and Pipe Names OK!
SQL Configuration Manager - Protocolos Enabled (TCP/IP, Pipes, shared) OK!
SQL Server Browse running and active OK!
Am I missing something? I never had this problem with SQL Server 2000 and Visual Studio 2003.
Thanks in advance for any help or suggestion you can give me.
Sasa
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Apr 3, 2008
Hi All,
After I installed sql server 2005 64bit standard edition on Windows Server Enterprise 2008 64bit, I cannot connect to the sql instance using the sql management studio on the same machine!
I verified that:
service is running,
in surface area configuration: remote connections to local and remote are enabled, for TCP/IP and named pipes.
ran the command netstat -avn| findstr 49279 to make sure that the server is listening.
firewall is off, but this does not matter since I'm connecting locally to local instance
I'm using domain controller account to login to sql server / also tried the sa account.
what else can be wrong?
thanks.
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Dec 5, 2006
Hi,
I need to connect to a SQL server thats running in say abc.trident.com and also sits in a shared environment..
I have couple of questions
1) That SQL server is accessible from my network, yet when I swtich on my enterprise manager I am unable to view that in the list of running SQL servers in the populated list.
Is it because its sitting in a shared environment I am unable to view that?
2) What is the connection striing I should use to connect to the server..When I try to configure a SQL server registrations it normally asks for SQL Server name along with the user authentication
Should I mention fill the Server: field as
abc.trident.com
or
// abc.trident.com/abc.trident.com
to connect to the clustered server.
Can some one tell me the proper connection string if both aforementioned ones are incorrect?
Thanks in Advance
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Jun 29, 2007
Hi,
I have a msaccess linked server that I use to execute sql 2000 stored procedures from a front end in adp (access data project) format without any problem, if it is used on the same machine where the sql server resides (with any user logged on). In any other machine on the local network where I also need to use it, I get an ole/db error message saying that the microsoft jet database engine can not open the file because it's allready opened exclusivly or because it do not has permissions. I created the linked server with both UNC and normal path with the same result.
Thank's for all the help/clues you can give me.
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May 21, 2006
Hi,
I've been trying to fix this error for two days! and I really need the advice of the experts please!
Computer XP Professional Service Pack2, SQL Server 2005 and Visual Studio 2005 (both Standard Edition)
ConnectionString:
<connectionStrings>
<add name="MyConnectionDB" connectionString="Data Source=(MyServerSqlServer2005);Initial Catalog=MyDB;User ID=sa;Password=PasswordforSA" providerName="System.Data.SqlClient" />
</connectionStrings>
C# code
stringmyConnectionString = ConfigurationManager.ConnectionStrings["MyConnectionDB"].ConnectionString;
SqlConnection myConnection = new SqlConnection(myConnectionString);
myConnection.Open();
Here I get the 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)"}
What I checked so far:
ServerName and Instance Name OK!
Database, Username and password OK!
SQL Server 2005 Surface Are Configuration - Remote connections using both TCP/IP and Pipe Names OK!
SQL Configuration Manager - Protocolos Enabled (TCP/IP, Pipes, shared) OK!
SQL Server Browse running and active OK!
No Firewall
Am I missing something? I never had this problem with SQL Server 2000 and Visual Studio 2003.
Thanks in advance for any help or suggestion you can give me.
Sasa
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Jan 22, 2008
When my default.aspx page loads I get this error for the connection to my SQL 2005 DB. 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) I have already gone to Surface Area Configuration to ensure that Remoting with both Named Pipes or TCP/IP is enabled and it's set to both for remoting.I verified that my local account has access to the DB.Not sure what else to check.
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Oct 17, 2007
Hi all.I use Visual Studio .NET 2002 and SQL Server 2005 Express Edition as database.I try to connect to database using server explorer.Test connection is OK. When I done with it and click OK, the message prompt that "Unable to connect to database".So, is it impossible to connect SQL Server 2005 Express Edition using the server explorer?But, the connection is ok when I connect through code cause I can retrieve and update database.
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Nov 10, 2003
Hello
please assist me I will appreciate it
I have a problem in my scripting I gues,I "ve done the config and server registrations and allow a public permission ,but stil giving me trouble
well this is my coding:::::::
<
<script language="vb" runat="server">
Dim MyConnection As SqlConnection
Sub Page_Load(Sender As Object, E As EventArgs)
MyConnection = New SqlConnection("server=(localHost);Database=CampusLANDB;Trusted_Connection=yes")
If Not (IsPostBack)
Dim DS As DataSet
Dim MyCommand As SqlDataAdapter
MyCommand = New SqlDataAdapter("Select distinct State from Authors",MyConnection)
DS=New DataSet()
MyCommand.Fill(DS,"tStudents") ' This is where the pro underlies
MySelect.DataSource=DS.Tables("Name").DefaultView
MySelect.DataBind()
End if
End Sub
sub GetName_Click(Sender As Object,E As EventArgs)
Dim SelectCmd As String = "Select From tStudents Where Name =@Name "
Dim DS As DataSet
Dim MyCommand As SqlDataAdapter
MyCommand = new sqldataAdapter(SelectCmd, MyConnection)
MyCommand.SelectCommand.Parameters.Add(New SqlParameter("@Name",SqlDbType.VarChar,2))
MyCommand.SelectCommand.Parameters("@Name").Value = MySelect.Value
DS= new DataSet()
MyCommand.Fill(DS,"tStudents")
MyDataGrid.DataSource=DS.Tables("tStudents").DefaultView
MyDataGrid.DataBind()
End sub
</script>
and I will apreciate if anyone vcan help me urgently
PPM
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Jun 18, 2001
I had asked a question last week and I realized that I had phrased it in a misleading way. Within a lab environment at my company, we are experimenting w/ accessing remote SQL data files stored separately on another machine from the SQL server itself (whether it be another client or server).
The experiment is this: You have one client machine accessing a SQL server via Enterprise Manager. The datafiles that you are trying to access are stored on another machine that does not have SQL Server installed. This remote machine only has the datafiles.
Can one map a static path via UNC from the SQL server to the datafiles on the remote machine and then access these datafiles (as long as the user's account has the appropriate permissions to the remote machine)? To my understanding, within SQL server you can only access datafiles that are stored locally on the SQL server itself.
The other thing that I was wondering was if the type of user account had some significance in this situation. More than likely, a local user account would not be able to access the remote machine w/ the datafiles even if the SQL server could map an UNC path and retain it. A domainuser account might be able to do this though.
Any help that you could provide would be appreciated.
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Feb 28, 2007
Hi Everyone,
I am running into a problem and have been browsing the web and reading nonstop for answers with no success. My company just installed SQL Server 2005 and I am trying to connect to it via SQL Server Management Studio from my network computer in the same office building.
When I browse for Local or Network Servers in the initial popup box at SQL Management Studio Startup, it doesn't show any servers at all. Is there something I need to enable on the Server using the Configuration Manager or one of the other tools to allow my network computer to "see" the SQL Server?
Any insight would be MUCH appreciated. Even a link to a how-to would suffice. Thank you.
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