Error Connecting To Database - Please Help

Oct 11, 2007

When i am trying to connect to SQL Server(Express edition) on production server i am getting 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: TCP Provider, error: 0 - No such host is known.)"
My SQL connection string is like this which i wrote in web.config.

<add key="conn1" value="Data Source=xxx.xxx.x.xxxyz,1433;Initial Catalog=abcdef_xyz;persist Security Info=true;User ID=xx;Password=xxxxxx"/>

string constr = ConfigurationManager.AppSettings["conn1"];
SqlConnection con = new SqlConnection(constr);

con.Open();

When i searched microsoft help to resolve this error, it suggested me to enable TCP/IP protocol for SQL server, i did that, but even after doing that i am still not able to connect to the database. Could any one please tell me what else i need to configure in order to connect to the database.

Thanks

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Error Connecting To Database

Mar 10, 2007

Hi guys,
 I created a database using SQL Server EXpress edition but now i need to use SQL Server Development edition. I cant connect to the database now?
Anyone tell me what the problem is.
 
 

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Error Connecting To Database

Nov 21, 2007

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: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
How do I correct it?

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Error Connecting To Database?

Sep 7, 2005

Hi Again,I have MSDE on ASP1.1 on a PC and have a logon page that uses a stored procedure to check my auth_user table, if logon and password exist then it returns (1) else returns (0).I used objparams.return to pick up the returned value and either server.transfer to opening page or label text message 'login not valid'. This is insde a try and the catch is another label, 'cannot connect to database'.Running on my local PC all is fine, transferred SP and table to hosting server, along with web.comfig set to the host servername, uid, password and database. On the host server all errors messages are returned. I have created a connection in my VS7 database manager to the remote host and the same happens after amending my connection string to run on the remote server.It clearly is the connection string, I am using the <appsettings> add Key to connect as I thought it would mean no change of coding in my pages when moving from Dev PC to Server. I have checked the hosting server setup and used the server name associated with the database (mssql3.securedc.com) , checked uid, password and database settings. Is there something I have missed like permissions, specific security settings on the host server (I have to go through a third party as the hosting is done through a friend of my client)?? Many thanksEarle

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Connecting To Database Error

May 8, 2007

Hi there



i have a problem connecting creating a data source to SQL server express.



I am running winXP with service pack2



My machine is APOLLOSQLEXPRESS



i AM USING AN ODBC CONNECTION.



i GET THE FOLLOWING ERRORS:



SQL SERVER ERROR 1231



AND



SQL SERVER ERROR 17.



Having done a google search and looked at the local security settings i am not sure what to add to the object names.

Can anybody please help.Gino

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May 19, 2015

I've remoted into our domain controller which houses our SQL database. From there I've been using the Microsoft SQL Database manager to run queries. However, I would prefer to do this from my desktop and not have to remote in whenever I need to look something up. I've found that Microsoft Visual Studio Express 2013 can create a connection where I can do my work. I've created the connection (or I believe so). "Testing the connection" is successful and in the Database Explorer window I can see my database and the folders of tables, views, etc. However, all of these folders are empty..When I choose the database everything in the settings pops up and I use the same authetication I use on the domain controller..

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Apr 10, 2008

Hi
Am developing a web application in asp.net ,c# and Sql server 2005(management studio express). Am using VS 2008 version. Getting the following error while connecting to database.
plz help me

"Cannot open database "Form" requested by the login. The login failed.
Login failed for user 'SUNS-97A7CC82A0Suns Solutions'."
Thanks in advance

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Jun 26, 2007

Dear All,

I am trying to connect to a .sdf database. I am building a console application. First I got an error "Could not load file or assembly 'System.Data.SqlServerCe, Version=9.0.242.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)". Then I manage to solve "Unable to load DLL 'sqlceme30.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E)". So wat is the possible error on my side ?

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Oct 18, 2007

Hi,
    I am getting the following error when i am trying to connect to the database server installed on different box.
"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)"
When i searched google, some postings suggested to enable the TCP/IP and Named Pipes Protocols from SQL Server configuration Manager. I did so and also ran mofcomp command. But even after doing this i am not able to connect to the server. Following is my connection string.
<add key="conn2" value="Data Source=xxxxxxxx;Initial Catalog=xxxxxx_xxxxxx;User ID=xx;Password=xxxxxx;"/>
Could any one please tell me what else the configuration settings i need to do in order to connect to the database from my application.

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Strange Error When Connecting To Database.

May 11, 2008

 Hello,
I'm tyring a simple piece of code to conenct to my database: SqlConnection con = new SqlConnection("Data Source=localhost; Initial Catalog=OrderingSystem; Integrated Security=SSPI");
try
{
// Try to open the connection.
con.Open();
label1.Text = "&lt;b>Server Version:</b> " + con.ServerVersion;
label1.Text += "&lt;br /><b>Connection Is:</b> " + con.State.ToString();
}
catch (Exception err)
{
// Handle an error by displaying the information.
label1.Text = "Error reading the database. " + err.Message;
}
finally
{
// Either way, make sure the connection is properly closed.
// Even if the connection wasn't opened successfully,
// calling Close() won't cause an error.
con.Close();
label1.Text += "&lt;br /><b>Now Connection Is:</b> " +
con.State.ToString();
}
When I try this, I get an error:"Error reading the database. Cannot open database "OrderingSystem" requested by the login. The login failed. Login failed for user 'NT AUTHORITYNETWORK SERVICE'."
The strange thing is, this code works perfectly If I use it in a Windows Forms application.
Is it a problem with SQL server, IIS or my code?I'm using SQL Server 2005 (SP2) 32bit developer edition + IIS 6.0 + Visual Studio 2008 Pro all runnign on my Windows XP x64 PC.
Thankyou

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Error Connecting To Database Engine

Apr 25, 2006

I have been successfully using SQL Server 2005 developer
edition for a couple of months now. However,
when I started Microsoft SQL Server Management Studio this morning I could not
connect to the €śDatabase Engine€? (I€™m using Windows Authentication). I can still connect with the €śIntegration
Services€? and €śAnalysis Services€? on the same server. The server running on my local machine, so
there shouldn€™t be any problems with the network. I am also able to connect with it through
ODBC, it just seems to be the Server Management Studio which can€™t connect, and it only has
problems with the €śDatabase Engine.€? Any
help would be appreciated.David

The detailed error message says:



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: TCP Provider, error: 0 -
No connection could be made because the target machine actively refused it.)
(.Net SqlClient Data Provider)

------------------------------

For help, click:
http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&EvtSrc=MSSQLServer&EvtID=10061&LinkId=20476

------------------------------

Error Number: 10061

Severity: 20

State: 0

------------------------------

Program Location:
at
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception,
Boolean breakConnection)

at
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject
stateObj)

at
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)

at
System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection
owningObject, SqlConnectionString connectionOptions, String newPassword,
Boolean redirectedUserInstance)

at
System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity
identity, SqlConnectionString connectionOptions, Object providerInfo, String
newPassword, SqlConnection owningObject, Boolean redirectedUserInstance)

at
System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions
options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection
owningConnection)

at
System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection
owningConnection, DbConnectionPoolGroup poolGroup)

at
System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection
owningConnection)

at
System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection
outerConnection, DbConnectionFactory connectionFactory)

at
System.Data.SqlClient.SqlConnection.Open()

at Microsoft.SqlServer.Management.UI.VSIntegration.ObjectExplorer.ObjectExplorer.ValidateConnection(UIConnectionInfo
ci, IServerType server)

at
Microsoft.SqlServer.Management.UI.ConnectionDlg.Connector.ConnectionThreadUser()



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Error Connecting To ASPNETDB - Cannot Open Database

Feb 15, 2007

Hi everyone, i have already created posts about this problem and im aware theres millions of replys, but i still cant get this to work and its driving me mad. The posts i have seen i dont understand?
 Im using the standard ASPNETDB Database, i have never opened up SQL Server Management studio, although i do have the express edition.
i have tried everything and i am totally stumped as to what to do. Heres my web.config.
It works in VWD 2005 Express, but not in WWWROOT or on webserver?
PLEASE PLEASE PLEASE Can someone help me!!!!!!!!!
 Dan :)
<?xml version="1.0"?>
<configuration xmlns="http://schemas.microsoft.com/.NetConfiguration/v2.0">
<appSettings/>
<connectionStrings>
<add name="northwindsConnectionString1" connectionString="Data Source=.SQLEXPRESS;AttachDbFilename=|DataDirectory|ASPNETDB.mdf;Integrated Security=True;User Instance=True"
providerName="System.Data.SqlClient" />
<add name="ConnectionString" connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|MyDatabase.mdb;Persist Security Info=True"
providerName="System.Data.OleDb" />
</connectionStrings>
<system.web>
<profile>
<properties>
<add name="FullName" defaultValue=""/>
</properties>
</profile>
<roleManager enabled="true" />
 
<compilation debug="false" />
<authentication mode="Forms" />
 
</system.web>
</configuration>

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Feb 10, 2008

when i am running both sql server management studio and beb developer and i try to connect to a database in web developer simultaneously it gives me errorfile used by another process  file located on UNC sharebut if i am only running web developer it gives me no  errorso please tell me how to connect to a same database simultaneously 

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Mar 8, 2006

    Newbie strikes again..   I'm attempting to connect to a SQL Server database (using VS 2005).  My code generated no errors in the build but when I tried to access the database, I got the following message:"The ConnectionString property has not been initialized."My connection string is stored in my web.config file.  My code goes as follows:Dim strSQL As String = "SQL string stored here"Dim objConnection as SqlConnection = New SQLConnection(ConfigurationManager.AppSettings("name of connection string is here"))Dim objCommand as SQLCommand = New SqlCommand(strSQL, objConnection)objConnection.Open()Then I go on to open my reader and such.  Where should I be initializing the ConnectionString property?TIA,Lesley

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Feb 11, 2005

I've got code that on my own machine (visual studio .net 2003 and iis and sql server all exist on this box) works great. I display my test page, which loads a dropdownlist on page_load. This works great on my own machine.

When I move the code to our dev environment. Web server and database servers on separate boxes. I get the error "Object reference not set to an instance of an object" when i try to open the connection to the database. I thought it had to do with permissions and I check all through sql server and everything looks great. I then thought it was the connection string. I still haven't ruled this out, but I wrote a quick vbscript app to attach to the database and try to pull a record. The vbscript worked fine. So, the code works fine on my computer, but not on the web server. The connection does work with vbscript, but through my asp.net web app I get the "object reference" error.

All code below...

ASP.NET webpage:
private void Page_Load(object sender, System.EventArgs e)
{

if( !IsPostBack )
{
// Create a command object for the query
string mySelectQuery = "select id from vw_abcd order by ID";

SqlCommand myCommand = new SqlCommand(mySelectQuery,sqlConnection1);
sqlConnection1.Open();

DropDownList1.DataSource = myCommand.ExecuteReader(CommandBehavior.CloseConnection);
DropDownList1.DataBind();
sqlConnection1.Close();

RangeValidator1.MinimumValue = "1";
RangeValidator1.MaximumValue = DropDownList1.Items.Count.ToString();
}
}

Connection string on my machine:
workstation id=wXXXXXX01;packet size=4096;user id=testuser;password=testpass;integrated security=SSPI;data source=wXXXXXX01;persist security info=False;initial catalog=TestDB"/>

Connection string on web server:
network library=DBMSSOCN;data source=xxx.xx.xxx.xxxinstance1;user id=testuser;password=testpass;initial catalog=TestDB


vbscript:
Dim connConnection, rstresultset
strConnectionString = "driver={Sql Server};server=xxx.xx.xxx.xxxinstance1;user id=testuser;password=testpass;database=TestDB"

Set connConnection = CreateObject("ADODB.Connection")

connConnection.Open strConnectionString
Set rstresultset = createobject("ADODB.Recordset")

rstresultset.ActiveConnection = connConnection

rstresultset.Open "select id, comment from testtable", connConnection

msgbox rstresultset(0)
msgbox rstresultset.Fields(0).Value



Error message and stack trace:
Object reference not set to an instance of an object.

at System.Data.SqlClient.ConnectionPool.GetConnection(Boolean& isInTransaction)
at System.Data.SqlClient.SqlConnectionPoolManager.GetPooledConnection(SqlConnectionString options, Boolean& isInTransaction)
at System.Data.SqlClient.SqlConnection.Open()
at Web2.Drilldown.Page_Load(object sender, System.EventArgs e)




Any ideas what's going on?????

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Oct 1, 2006

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http://www.trianglepowers.com/ppc6700/Default.aspx

I have installed the latest Net Compact Framework and service patches / updates
I have installed MS SQL Mobile Edition
I have installed Client CAB

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Can anyone suggest a solution?

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Jan 22, 2008

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Mar 20, 2008



















I've had some problems with Reporting Services and getting connected to the database server after configuration. I am now getting the following error message:

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In my Database Setup everything runs fine when I click apply except for the Setting Connection Info for Reporting Server this has a yellow triangle with a ! and says that the report server cannot access internal information.

I also have not been able to Initialize as there are no instances to initialize and none are created when I go through setup. Is there something I need to delete from the registry or the file system that does not get removed upon uninstall?

Thanks.

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Nov 9, 2007

I have moved my databases to 2000 to instance of 2005 on the same server.
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& my connection string
Password=test;Persist Security Info=True;User ID=test;Initial Catalog=databasename;Data Source=ipaddress

i was using above connection string to connect when using 2000 databases form applications in the production machine

I get the following error when i am running my applications now after moving to 2005


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 it because i have two server on one server or
What do i need to do in order to fix this....tried several thing by searching nothing worked out..

Let me know
thanks


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Mar 11, 2008

Hello,

i tried to connect to a SQL Server Compact Database (version 3.5) with SQL Server Management Studio Express (Version 9.00.3042.00).

But i get the follwing error message (sorry, it's a german message):

.....................................
Es kann keine Verbindung mit 'D:DocumentsVisual Studio 2008Projects\_ProduktivSuperkalibrator_PrototypenSuperkalibrator_PrototypenDatenbankDatabaseTest.sdf' hergestellt werden.

------------------------------
ZUSĂ„TZLICHE INFORMATIONEN:

Sie versuchen, auf eine ältere Version einer Datenbank von SQL Server Compact Edition zuzugreifen. Falls es sich um eine Datenbank von SQL Server CE 1.0 oder SQL Server CE 2.0 handelt, führen Sie 'upgrade.exe' aus. Falls es sich um eine Datenbank von SQL Server Compact Edition 3.0 oder höher handelt, führen Sie die Komprimierung und Reparatur aus. [ Db version = 3505053,Requested version = 3004180,File name = D:DocumentsVisual Studio 2008Projects\_ProduktivSuperkalibrator_PrototypenSuperkalibrator_PrototypenDatenbankDatabaseTest.sdf ] (SQL Server Compact Edition ADO.NET Data Provider)
.....................................

Is there a solution to manage Compact Databases in Version 3.5?

Thanks!
Stefan Wagner

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May 20, 2008

Hello,

I recently joined a company that is having an issue connecting to SQL Server Integration Services on one of their production servers. When trying to connect via management studio, both locally and remotely, they receive the error below. The server is a 64 bit server and is using third party replication (Veritas).

It sort of sounds like the issue described in this knowledge base article: http://support.microsoft.com/kb/919224. However, we do not have a problem creating maintenance plans. I'd just give it a shot but its a production server and getting approval to do anything that modifies the registry with the registry replication setup is a pain, so I'd like to determine if there could be another cause first.

TITLE: Connect to Server
------------------------------

Cannot connect to ***************.

------------------------------
ADDITIONAL INFORMATION:

Failed to retrieve data for this request. (Microsoft.SqlServer.SmoEnum)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&LinkId=20476

------------------------------

Error loading type library/DLL. (Exception from HRESULT: 0x80029C4A (TYPE_E_CANTLOADLIBRARY)) (Microsoft.SqlServer.DTSRuntimeWrap)

------------------------------

Error loading type library/DLL. (Exception from HRESULT: 0x80029C4A (TYPE_E_CANTLOADLIBRARY)) (Microsoft.SqlServer.DTSRuntimeWrap)

------------------------------
BUTTONS:

OK
------------------------------

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Feb 14, 2008

Hi all,

In the VB 2005 Express, I can get the SqlConnection and ConnectionString of a Database "shcDB" in the Object Explorer of SQL Server Management Studio Express (SSMSE) by the following set of code:
///--CallshcSpAdoNetVB2005.vb--////

Imports System.Data

Imports System.Data.SqlClient

Imports System.Data.SqlTypes

Public Class Form1

Public Sub InsertNewFriend()

Dim connectionString As String = "Data Source=.SQLEXPRESS;Initial Catalog=shcDB;Integrated Security=SSPI;"

Dim connection As SqlConnection = New SqlConnection(connectionString)

Try

connection.Open()

Dim command As SqlCommand = New SqlCommand("sp_insertNewRecord", connection)

command.CommandType = CommandType.StoredProcedure
.......................................
etc.
///////////////////////////////////////////////////////
If the Database "shcDB" and the Stored Procedure "sp_inertNewRecord" are in the Database Explorer of VB 2005 Express, I plan to use "Data Source=local" in the following code statements to get the SqlConnection and ConnectionString:
.........................
........................

Dim connectionString As String = "Data Source=local;Initial Catalog=shcDB;Integrated Security=SSPI;"

Dim connection As SqlConnection = New SqlConnection(connectionString)

Try

connection.Open()

Dim command As SqlCommand = New SqlCommand("sp_insertNewRecord", connection)

command.CommandType = CommandType.StoredProcedure
........................
etc.

Is the "Data Source=local" statement right for this case? If not, what is the right code statement for my case?

Please help and advise.

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Feb 1, 2004

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<configuration>
<appSettings>
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<authentication mode="Forms" >
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</authentication>
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My computer is running in Windows Authentication Mode.

I have tried replacing the UID and PWD to my sa account settings, but I still can not connect.
The books says I need to manually add a login that has access to the AspNETJobsDatabase, but I assume that would be the sa login or do I need to create another all together? If so, can anyone suggest an article to lead me in that direction.

Any suggestions would be helpful and greatly appreciated.

Thanks

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I have an asp.net project on my laptop 'supposed to be' connecting to a SQL DB on the same machine. But I keep getting this error:

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It's driving me nuts. Any help would be appreciated.

txs
sonners

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Hi,

I have a major problem here. Hope you guys can help.

I have a VS2005 project that uses a DB I developed on and MSDE database using TOAD for SQL. A while ago I upgraded to SQL Server Express and all was well.

Next I was looking to create a deployment package for both the application and BD so after a bit of reading I created a connection to the DB in my VS2005 project with the intention of making it a dependency so both app and DB could be installed in one go (maybe not the best idea L). Previously I had just been using a connection string and opening/closing the connection as and when it was needed (this app only runs for 5 minutes each night).

This however has now stopped the ability to connect to the database with any of my DB development tools (Toad and the SQL management app that comes with express).

When I try to connect I get the following error

TITLE: Microsoft SQL Server Management Studio Express
------------------------------

Failed to retrieve data for this request. (Microsoft.SqlServer.Express.SmoEnum)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&LinkId=20476

------------------------------
ADDITIONAL INFORMATION:

An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.Express.ConnectionInfo)

------------------------------

CREATE FILE encountered operating system error 32(The process cannot access the file because it is being used by another process.) while attempting to open or create the physical file 'C:Program FilesMicrosoft SQL ServerMSSQLDataCDEvolution.mdf'. (Microsoft SQL Server, Error: 5123)

For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=08.00.0760&EvtSrc=MSSQLServer&EvtID=5123&LinkId=20476

------------------------------
BUTTONS:

OK
------------------------------


I had a look at the connection string that VS2005 is using and it looks nothing like the standard connection string I was using previously. It seems that the action of creating the connection with VS has changed/corrupted something on the DB.

To ad to my woes I also have to either change the connection string (this built using an xml file containing the all the elements of the string and parsed in allowing be to edit the string depending on the environment) to match the one VS is using or change my code to use the new connection.

I would prefer to revert back to the way it was working previously and figure out a different method of deploying the software.

Any thoughts?

Cheers,
Kevin.

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Dear All,
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what will be the cause???
i'm working fine with the database with sql server 2000.

Vinod
Even you learn 1%, Learn it with 100% confidence.

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hello ,

can anybody help me

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