2005: Cannot To Connect From .NET
Aug 4, 2006
Hello,
Could you help me please to solve the prblem with connecting to SQL Server
from .NET development environment?
I have the following error:
"An error has occured 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 setting SQL Server does not allow remote connections.
(provider: Named Pipes Provider, error: 40 - Could nott open a connection to
SQL Server)
Please help. I changed option for remote connections but it doesn't help.
/RAM/
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Dec 12, 2006
I'm having a problem connecting with a Java application but I CAN connect using my .Net application - the user name and password are the same for both (using the same database on SQL Server Express 2005).
The error I get is: "com.microsoft.sqlserver.jdbc.SQLServerException: Cannot open database "CORNERS" requested by the login. The login failed." An interesing note - I get the same message if the database is not running.
SQL Server Express 2005 is installed in mixed mode.
Here is my connection string in the .Net appplication: <add key="connectString" value="Server=(local);UID=sa;PWD=myPasswd;Database=CORNERS" />.
These are my values in my Java app web.xml -
<init-param>
<param-name>DBDriver</param-name>
<param-value>com.microsoft.sqlserver.jdbc.SQLServerDriver</param-value>
</init-param>
<init-param>
<param-name>DBURL</param-name> <param-value>jdbc:sqlserver://localhostsqlexpress:1055;databaseName=CORNERS</param-value>
</init-param>
<init-param>
<param-name>DBUser</param-name>
<param-value>sa</param-value>
</init-param>
<init-param>
<param-name>DBPwd</param-name>
<param-value>myPasswd</param-value>
</init-param>.
And yes, the port is 1055 - I checked to find it.
I am using Microsoft SQL Server 2005 JDBC Driver 1.0 (sqljdbc_1.0.809.102).
Does anyone have any idea what is wrong so that the login fails in the Java application but works in the .Net application?
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Jan 9, 2007
hi,
I have some SQL CE database .sdf file on my handheld, and I was trying to connect to that file via SQL Server 2005 Management Studio, and it does not work. I am wondering if there is any good tool that I can use on desktop to connect to sqlce .sdf database file on my handheld?
Thanks.
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May 26, 2008
Hi,
I have VS Pro 2005 and SQL Server Express 2005 installed on an XP Pro machine. When using VS 2005, in the 'Server Explorer' window I can see and attach to two SQL Server databases that I have set-up. But if I attempt to access the same databases from withn the 'Solution Explorer' window I get the following dialog box message,
"
Required Component Missing (Dialog box heading)
Connections to SQL Server Files (*.mdf) require SQL Server Express to function properly. Please verify the installation of the component or download from the URL: http://go.microsoft.com/fwlink/?LinkId=49251
"
I have uninstalled and then reinstalled both VS 2005 and SQL Server Express twice but it has helped.
I don't understand why I'm getting this error because all of the server configuration tools and connection utilities seem to work fine but VS say's that SQL Server Express is not installed.
Thanks,
CLN
P.S.
I had another application that required MSDE 2000A to be installed. When I removed the other application I also removed MSDE 2000A and that's when the problem began.
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Apr 17, 2007
Hi,all BI experts here,
Thank you very much for your kind attention.
I am having a problem with connecting to SQL Server 2005 database from Office Business Scorecard Manager 2005 (the connection string i am using is: provider=SQLOLEDB;Data source=server_name; Initial catalog=database_name). But the connection failed. Would please any experts here shed me any light on what is the problem and how to fix it then? As there is no any forum for Office Business Scrorecard manager 2005. Therefore I post my thread here as it is related to the connection to SQL Server 2005 database engine, thought here is the best place for this question.
Thank you very in advance for your kind advices and help. And I am looking forward to hearing from you soon.
With best regards,
Yours sincerely,
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Nov 21, 2006
I've used Sql Server 2000 and Visual Studio 2003 for a few years. I've started a new position and they have access to Sql Server 2005 Standard and Visual Basic 2005 Express which I'd like to use for a new project. So I installed Sql Server 2005 and then VB 2005 Express on my workstation. I didn't choose the Sql Server option for VB Express because I already had Sql Server 2005 Standard installed with a simple database created. I created a simple vb project that justs connects to the database but I get the following error.
Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0000, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
I looked at permissions in the database and it looks ok. I'm the db owner and I'm using Windows Auth. My connection string is
"Data Source=MySystem;initial catalog=AdventureWorks;integrated security=true;"
I thought I'd look at the starter kit to get some ideas about what the problem is, but when I started the movie starter kit project, it was upset that I didn't have Sql Server 2005 EXPRESS installed. Yea, but I do have Sql Server 2005 Standard installed.
Any help will be greatly appreciated. Thanks.
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Feb 9, 2007
I've installed, with default settings, VS 2005 and Server 2005 Express and cannot get VS2005 to connect. This is the error:
Unable to open the physical file "..path...mdf". Operating system error 32: "32(The process cannot access the file because it is being used by another process."
I shutdown Server 2005 but that didn't change anything. Any ideas?
Thanks.
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Feb 16, 2007
I have installed MS Visual Web Developer 2005 Express Edition on my Notebook (WinXP Pro SP2). And it's working fine. Then I tried installed SQL Server 2005 Express Edition SP1. There is no error during installation and it seems to be working as I can see the SQL Server (MSSQLServer) service is running. As SQL server configulation manager., the protocal shared memory , named Pipes and TCP/IP are enabled.
But when I want to add connection using VWD 2005 by pointing to datasource (MS SQL Server database file and selecing file from .mdf file from SQL sample database file. Then test connection, I got a error that
"An error has occurred while establishing a conneciton to the server. when connecting to SQL server 2005, this failure may be casued the the fact that under the default settings SQL server does not allow remote connections. (provider: SQL Interfaces, error: 26- Error locating server/instance specified)
Can you please advise what the missing part of my configulation ?
Thanks
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Feb 12, 2006
Hi, I've looked through the search facility and not seen anything discussed for this before, and wonder if someone here has the answer?
I've just setup a new server (Win Server 2003 SE SP1), installed SQL Server 2005 Developer Edition and can connect to it fine locally using Management Studio, but when I try to connecto to it via MS remotely, I get nothing.
I've enabled remote connections, the firewall is set to allow TCP port 1433 through (though even with the firewall off, I get nothing). Just TCP/IP is enabled as a network protocol, but I've tried all others (service doesn't start if trying to use VIA), with all but VIA enabled for Native Client Protocols.
I've fiddled with this for a couple of days now and not got anywhere. If I enable IIS on the server, I can telnet to that fine, so the server is listening on the network fine, but telnet'ing to port 1433 gets no reply.
Am I missing something obvious here? Please help, it's driving me mad!
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Aug 19, 2007
im new to SQL 2005 and recently install it and learn but i got problem when connect the instance with the following error message
TITLE: Connect to Server
------------------------------
------------------------------
ADDITIONAL INFORMATION:
A connection was successfully established with the server, but then an error occurred during the pre-login handshake. (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not trusted.) (Microsoft SQL Server, Error: -2146893019)
Any solution for this problem?
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Sep 11, 2007
installed 2005 on my laptop.
how do i find out my server name?
=============================
http://www.sqlserverstudy.com
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Jan 5, 2008
Hi all,
I have a big project written by VC 6.0 and using SQL 7.0 as a backend, I'm using msado15.dll, any idea on how to connect it to SQL 2005.
regards,
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May 14, 2007
After several attempts to install SQL2005 I finally got Microsoft SQL Server Management Studio installed.But now 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) (.Net SqlClient Data Provider)The sa account username/password are correct and don't work, windows authentication does not work, I have stopped/started all the services, I have all Protocols enabled correctly, I have my Firewall turned off. Is there anything else I can try? Anything!
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Jan 30, 2008
Hi there,
I install microsoft server 2005 and I use the microsoft server management studio express tool to get connection and database tables set up.
To connect to server:
Connection server: localhostSQLEXPRESS
Authentication: windows authentication
Then I click on connect button
I create the tables in YCH1-1SQLEXPRESSDatabasesSystem DatabasesmasterTables
where YCH1-1 is my machine name
The table I have created is called staff I put in the code below in the web.config file but it does not work when I try to insert data into staff table
<appSettings><add key="ConnectionString" value="Data Source=(local);Initial Catalog=Master; 
 Integrated Security=true;"/>
</appSettings>
Error in statement: connection.open()
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)
Can anybody help me ? Thank you in advance.
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Oct 18, 2005
Hi All,I hopen this isnt a stupid question but can I connect asp 1 to sqlserver 2005? i want to update the database used on a ASP.net 1 project, I seem to be able to get it to connect but cant get it to see the tables?Thanks for any helpLee
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Jan 3, 2007
May i know whether SQL2000 is compatible with vb.net 2005?
I cant find OLEDBDataAdapter in vb.net 2005, any ways to connect SQL 2000 to vb.net 2005?
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Mar 22, 2007
Hi
I have 2 severs. Server A uses sql 2005 and Server B uses sql 2000. I want to create sql sever registration on Server B connecting to Server A. But it saied 'To connect to this server you must use SQL Server Management Studio or SQL Server Management Objects (SMO)'
Any idea to solve it? thanks!
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Jul 23, 2005
I have installed SQL Server 2005 Beta 2 on my PC. When I try to make aconnection to it from the DTS environment, I get following error:=============================================Could not get server list. (DTS Import/Export Wizard)=============================================[DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist or accessdenied. (Microsoft OLE DB Provider for SQL Server)----------------------------------------Making a connection from within SQL Server Management Studio works fine.If I try to connect from within a .NET program using SQLConnection, itfails on the conn.Open() call. But SQL Server Management Studio worksfine.Has anyone run into this? Could someone please help?Rob
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Dec 25, 2006
i have allready install mssql2005 Dev version on WinXP in one machine
then try to connect . in browser http://localgost/reports
as a result error
Server Application Unavailable
The web application you are attempting to access on this web server is currently unavailable. Please hit the "Refresh" button in your web browser to retry your request.
Administrator Note: An error message detailing the cause of this specific request failure can be found in the application event log of the web server. Please review this log entry to discover what caused this error to occur.
if try connect from MS managment studio
also have a error
why it can happent ?
when i try to configure :
go to reportin services config manager I see that "web service identity is not configured ",
go to web service identity
ASPNET Service account : = ASPNET
click APPLY
as a result such error :
ReportServicesConfigUI.WMIProvider.WMIProviderException: The account name is not valid. Specify an account in the form domainalias.
at ReportServicesConfigUI.WMIProvider.RSReportServerAdmin.SetWebServiceIdentity(String applicationPool)
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Oct 9, 2007
I cannot seem to connect to SQL server on my local machine.
where would i post this question?
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Jun 26, 2007
Hi, I've installed the evaluation version of sql server 2005 and sp2 on my local machine running vista 64 .. .I can see the mssqlserver service running but I don't see any mssqlserver available in management studio.. maybe i have to do something in the configuration manager? i wish these tools were more intuitive, feel like I'm guessing and testing
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Jan 3, 2008
all,
I have the standard edition of SQL Server 2005 installed on a WIN XP Pro machine. I setup file and print sharing with my laptop. What do I need to be able to connect to SQL Server on my WIN XP Pro machine from my laptop. I hope to do most of my developing on my laptop. Do I need the developers edition of SQL server 2005 installed on my laptop?
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Apr 14, 2006
I have a web app running on a laptop (for demo purposes) with the following connect string:
"datasource=<machine name>SQLExpress;initial catalog=BlueTarp;User ID=sa;Password=xxx"
I can connect to this instance using both oSQL or sqlcmd and can select from the tables within BlueTarp, but my web app won't connect, and I can't figure out why!!
When I installed SQL Express, I used a named instance, called "SQLExpress".
I'm using mixed mode authentication.
One strange thing is that I can connect to either SQLExpress or MSSQLSERVER instances, but they appear to be the same instance -- I can use bluetarp in both.
when I use SQLExpress for instance name in web.config I get "SQL Server does not exist or access denied"
when I use MSSQLServer for instance name in web.config I get "Invalid connection"
And in fiddling with the web.config, I somehow did something to get a machine.config error, something like "machine.config couldn't be loaded because of an unloaded appdomain".
It's driving me nuts because I've spent a good 40 hours on this stupid problem, throwing the whole margin down the toilet.
Does anyone have any ideas?
Thank you,
Aarron
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Sep 23, 2006
I have developed a website that connected to sql2000 db
Now that I have upgraded to SQLserver2005, I always get the follwing message after launching the website:
Microsoft VBScript compilation error '800a0401'
Expected end of statement
/iisHelp/common/500-100.asp, line 11 Dim objASPError, blnErrorWritten, strServername, strServerIP, strRemoteIP Dim strMethod, lngPos, datNow, strQueryString, strURL
--------------------------------------------------------------------------^
Microsoft OLE DB Provider for ODBC Drivers error '80004005'
[Microsoft][Gestionnaire de pilotes ODBC] Source de données introuvable et nom de pilote non spécifié
/FMCQ_Web/Include/Modules/modADO.asp, line 18
I have tried different things (security access, DSN, etc...)but seems that nothing is working,
Can someone out there suggest a move to get this going..
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Apr 8, 2008
Hi all. I have a 64 bit Windows 2003 cluster with 4 named instances of SQL Server 2005.
Im unable to connect via ODBC or from applications from Windows Vista to the named instances.
There are no problem connecting to default intances.
The ODBC give me a SQL State 08001 error. In the bottom of the error it talks about not allowing remote connections, but the instances allows both TCPIP and named pipes.
The SQL 2005 cluster are running SP2 and Vista have Native Client upgraded to SP2.
Any ideas??
THX, Flemming
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Sep 19, 2006
Hi All,
One of our database server has upgraded from SQL Server 2000 to 2005 version some days ago, but I found the application which could run before cannot work fine now. I have followed some intructions got from other guys, such as replace the old driver with a new version, but it still did not work. Now I have two questions
1. What is the driver implementation class name? I found there were several answers. (I don't use XA connections)
2. What is the data source helper class name?
I suspect that the above questions are the causes. However, please give me some other hints if any.
Thank you very much!
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Nov 11, 2007
Hi
I need to know how to connect my DB which is in SQL 2005 with the IIS server, hopefuly this will be in much detials bcuz its my first time working on this staff
Thanx
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Oct 9, 2007
in my application, i can seem to use every page, but ONE. when i access this page, 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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
I have taken the time to answer the questions listed here:
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=975683&SiteID=1
[1] Client side:
What is the connection string in you app? <Setting Name="ConnectionString" Public="False">Server=(local);User ID=asdf;Password=asdf;Database=cwTRU;</Setting>
If client fails to connect, what is the client error messages?
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)
Is the client remote or local to the SQL server machine? Local
Can you ping your server? YES
In cmd.exe console, type €œping -a <server_name>€?.
Can you telnet to your SQL Server? NO, server is local, Connecting To briansomethingdifferent...Could not open connection to the host,n port 23: Connect failed
In cmd.exe console, type €œtelnet <server name> port, where port can be 135, 445 or sql_server_tcp_port. If your cmd.exe console turns into a complete black screen with a cursor flushing on top left corner, you are connected. Type ctrl+€™[€˜ to bring up telnet prompt and type €œquit€? <enter>.
What is your client database provider? ADO.NET2.0 other (please specify] Or/And, what is your client application? Visual Studio
Is your client computer in the same domain as the Server computer? Same domain
What protocol the client enabled? TCPIP | Named Pipes.
Do you have aliases configured that match the server name portion of your connection string? If so, please check if it is correct. You can use cliconfg.exe (SS 2000) or SQL Server Configuration Manager (SS 2005) to configure the alias. no aliases
Do you select force encryption on server and/or client? no
[2] Server side:
What is the MS SQL version? SQL Sever 2005
What is the SKU of MS SQL? not sure, enterprise i believe
What is the SQL Server Protocol enabled? Shared Memory | TCPIP | Named Pipes. Use SQL Server Configuration Manager to configure it and check ERRORLOG or event log to confirm.
Does the server start successfully? YES
If SQL Server is a named instance, is the SQL browser enabled? YES
What is the account that the SQL Server is running under?Local System
Do you make firewall exception for your SQL server TCP port if you want connect remotely through TCP provider? not applicable
Do you make firewall exception for SQL Browser UDP port 1434? In SQL2000, you still need to make firewall exception for UDP port 1434 in order to support named instance. not applicable
[3] Platform:
What is the OS version? Windows XPSP2.
Do you have third party antivirus, anti-spareware software installed? no.
[4] Misc:
If you have certificate configuration issue: Please use €œcertutil.exe €“v €“store my€? to dump certificate specific info and post it in your question.
Tips:
1. Find SQL Server Errorlog: Default to C:Program FilesMicrosoft SQL ServerMSSQL.#MSSQLLOG
Last but not least:
There is a wealth of information already available to help you answer your questions.
(1) SQL Server 2005 Books Online: http://msdn2.microsoft.com
(2) Microsoft Support Knowledge Base: http://support.microsoft.com
(3) SQL Protocol Team Blog: http://blogs.msdn.com/sql_protocols
(4) MSN Search: http://search.msn.com/ or use your favorite search engine.
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Oct 12, 2006
I created test project and want to use SQL 2005 database inside.
1. I created Test database with DEFAULT rights
2. I go into server explorer, press Add Connection. Shows message box for connecting to the server: <PCNAME> using windows authntification.
But NO database allowed to view :(.
Which setting should be set for SQL server database to i could connect and work with it?
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Sep 27, 2006
Hallo,
i developed a little web-application.
I'm using a SQL 2005 Express edition db but i cannot connect.
i tried the connection strings from connectionstrings.com but unfortunately they dont list connectionstrings for SQL Express 2005.
Thats the one i guess it should work with:
Provider=SQLOLEDB;Data Source=SQLServerNameSQLEXPRESS;Initial Catalog=Lizenzportal;Integrated Security=true
I always receive following error:
No error information available: DB_E_ERRORSOCCURRED(0x80040E21)
Hope you can help me with this issue.
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Dec 6, 2007
I have a dts package on SS2000 which loops through connections to a list of databases using activex:
set srv = createobject("SQLDMO.SQLServer")
srv.LoginSecure = True
set gpkg = DTSGlobalVariables.parent
set tserv = gpkg.GlobalVariables ("Server") -- where "Server" contains the name of an instance.
srv.Connect(tserv.value)
This works fine when connecting to ss2000 instances, but not with ss2005 instances. How can I connect to ss2005 instances too??? There must be a way! I don't have time to rewrite the package to IS.
Thanks,
Michael
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Apr 15, 2006
Hello,
I have a problem with connecting to SQL Server 2005. I have a small network at home with a WLAN router connected to Internet. My notebook computer and desktop computer are connected to router. My SQL Server 2005 is installed on notebook computer and Microsoft Server Management Studio is installed on desktop computer. I wanted to add login so I could connect to it from desktop pc and a problem came up. When I tryed to add account (from desktop pc) to local group on notebook pc I couldn't do that becouse there wasn't offered desktop pc as a location. Also, when I try to make connection string in visual studio, i can see sql server but i can not choose database. Is this becouse of router or is it posible to do that only in a real server(domain)?
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Sep 18, 2007
Hi all,
I'm new to this forum and haven't worked with SQL Server for a couple of years. Now it seems I'm getting back into it. I have SQL Express and SQL 2005 installed on an XP sp2 machine with IIS 5.1. I have a C#/ASP.NET web app in Visual Studio 2005 that keeps getting an error on attempting to connect (SqlConnection object). It's a generic error saying a probable cause is SQL Express default setup not allowing remote connections. Remote connections are turned on for both TCP and UDP. I can connect from within a small C# windows application using the same uid and pwd, so I suspect it's something related to IIS talking to SQLExpress. I would appreciate any help on other things to check. I am also fairly new to using IIS in the development environment.
Thanks
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