Using SQLExpress On A Network

Oct 26, 2006

Hi,

I have a VS2005 application that I run with a SQL server 2003 database.

In order to make the application distributable, I'm trying to get it to run with SQLExpress.

I've installed SQLExpress on a spare machine and changed the connection string in my application to use SQLExpress c:databasesmydatabase.mdf (and the database is obviously in that location!). This works fine on the spare machine.

However the problem is getting the application to run on another machine but using the same database. I note that SQLExpress won't let me put the database on a networked drive.

On another machine I've also installed SQLExpress, I've enabled the tcpip stuff and the browser but to be honest don't really know what I'm doing!

How do I set up additional machines to use the database on the original PC? What do I put in my connection string? If I leave it as it is won't it look for the database on it's own local disk?

Any pointers much appreciated!

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Network Access SQLExpress

Jan 16, 2006

I am  trying to access a SQLExpress database on another computer on my LAN.  Using Windows Authentication. I don't really want to go to Mixed Mode authentication as I understand it involves a registry tweak and creating a new user. I am a novice at this.

Getting the following error on running the connection code below:

SQLException was unhandled "Login failed for user 'D37YKC1SGuest'."

No doubt it is a security problem but I am not sure how to get around it.  Any help appreciated.

Connection code:

Dim conn As New SqlClient.SqlConnection

conn.ConnectionString = "Server=D37YKC1SSQLEXPRESS;Integrated Security=True;Database=VBNMDATA"

conn.Open()

Tried the following which is my Windows logon on the other computer (blank password) but same error:

conn.ConnectionString = "Server=D37YKC1SSQLEXPRESS;Integrated Security=True;Database=VBNMDATA; User Id=Geoff; Password="

I have TCP/IP enabled in SQL Express  and the firewall is off.  I can see the server on the other computer with this code:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

' Retrieve the enumerator instance and then the data.

Dim instance As SqlDataSourceEnumerator = _

SqlDataSourceEnumerator.Instance

Dim table As System.Data.DataTable = instance.GetDataSources()

' Display the contents of the table.

DisplayData(table)

End Sub

Private Sub DisplayData(ByVal table As DataTable)

For Each row As DataRow In table.Rows

For Each col As DataColumn In table.Columns

MessageBox.Show(col.ColumnName.ToString & " " & row(col).ToString)

Next

Next

End Sub

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Apr 1, 2008

how can Share may sqlexpress 2005 on network   that other can access my databasess on their pc and edit update and insert recored into my table
please tell me how can do this ?

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Connect To Sqlexpress From Network Computer

Mar 3, 2007



Hi

Please if any one can answer.I am developing .net vb app sqlexpress database.

In single user work ok.In multiuser from other computer on network I cannot get data.Any form without data workok fine . The error I am getting is as follows.



Application attempted to perform operation not allowed by the security policy.

request for permission of type

'System.data.sqlclientpermission,system.data,

version=2.0.0.0.,culture=Normal, publickeytoken=b77a5c561934e089'

Zaabdullah











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Mar 11, 2008

I'm using the methods of the Microsoft.SqlServer.Management.Smo namespace within a .NET application to create a backup file from a SQLEXPRESS database. I can then restore the database from that backup device using methods in the same namespace. Here is a snippet from the restore code:


srv = New Server("MYPCSQLEXPRESS")

db = srv.Databases("washmaster")

Dim bdi As New BackupDeviceItem(BackupFileName, DeviceType.File)

Dim recoverymod As RecoveryModel

recoverymod = db.DatabaseOptions.RecoveryModel

rs.NoRecovery = False

rs.Devices.Add(bdi)

rs.Database = "washmaster"

rs.ReplaceDatabase = True

srv.KillAllProcesses("washmaster")

rs.SqlRestore(srv)


This works great as long as I used one of the backup files that I created directly on the disk. However, my application has a utility that allows the user to copy the backup files onto another drive, such as a CD or a thumb drive and when I try to restore from the copy of the backup, I get the following exception:

....Cannot open backup device..[filename]...Operating system error 5(Access is denied.)

The reason I get this error is that the "NETWORK SERVICE" account was removed from the file permissions when the file was copied.

How can I copy a backup to another drive and preserve the "NETWORK SERVICE" account? If I can't do that, is it wise to try to add the account back to the file before using it to restore or is there a better way?

Thanks,
SJonesy

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Mar 13, 2007

I can't start SQLEXPRESS.

The SQL ERRORLOG shows: Error is 3414, Severity 21, State 2 and says: "An error occurred during recovery, preventing the database 'model' (database ID 3) from restarting." Just prior to this, I get a warning: "did not see LP_CKPT_END".

Any thoughts why this might be and how I can fix this?

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Sep 21, 2006

hiya,

I have sqlExpress and sqlServerManagementStudio on my XP pro box.

Will the installation of sqlExpress (Advanced Services) cause any problems?IS thereanything that I shold be aware of in advance?

many thanks,

yogi

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Jan 19, 2007

Hi All,

I have created an installation application which will install the application with SQL Express and .NET Framework 2.0.

If i install this application in a Fresh system(i.e which is not having SQL Express), it is installing the application with new database instance successfully.

But if i try to install the same in a system which is already having SQL Express, throwing "Object reference exception" because it is not able to create the new database instance.

Can anybody help me out .

Regards,

Doppalapudi.

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Mar 21, 2006

Because of numerous problems trying to get sqlexpress working, I uninstalled it with the intention of reinstalling (via Add or Remove Programs). However, now when I try to reinstall it, I get a message that the I am not making a changes so it won't let me install it.

I do have sql server 2005 developer's edition installed; is that the reason? and does that mean I cannot have both installed on the same machine?

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Sep 30, 2004

Hello all,

We have a Windows 2003 Web Edition server serving a site through IIS. It connects to a Windows 2003 Standard Edition server running SQL 2000 SP3a.

This site receives the following error as seen in the topic:
[DBNETLIB][ConnectionRead (recv()).]General network error. Check your network documentation.

We've configured the server network utility to only allow TCP/IP connections. The connection string for the site is as follows:

<%
' FileName="Connection_ado_conn_string.htm"
' Type="ADO"
' HTTP="false"
' Catalog=""
' Schema=""
MM_connSpankMSSQL_STRING = "Provider=sqloledb;Data Source=SERVER_IP,1433;Network Library=DBMSSOCN;Initial Catalog=ourmaindb_1;User ID=ourmaindb_1;Password=hotcookies;"
%>

Any ideas or tips on solving this issue? We've noticed it is due to larger queries as smaller ones do work with no problems.

The servers are behind a BSD box running iptables, has 1433,1434 along with standard web ports wide open. Anything outbound is allowed.

Some further testing via ODBC on the IIS server improved things. No more connection pooling for the SQL Server driver allows for 1/3 of the query to run. Still 2/3s of it doesn't show up, and that general network error message appears.

Should have 330 rows if it works right.

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May 19, 2004

Hi
While running a DTS, many times the error message: "[DBNETLIB][ConnetionWrite (WrapperWrite()).]General network error. Check your network documentation." appears.
Does somebody knows why?

I am running the DTS from a computer (not the server where the DTS is stored) and it is connected without any problem when this happens.

Thanks!!
Regards
Lautaro - Argentina.

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Oct 4, 2007

Hi Every one,

I am using .Net 1.1 for my web application.

And my database server is SQL Server 2005.

My application is running fine, as i can login to it and also able to view pages. But when i open Order management(having 3K records) its give me error,

General Network Error. Check your network documentation


I have also searched many articles and tried following solutions but nothing working

- connectiontimeout = 0, max pool size = 7500/100, pooling = false

- SSL disabling enforce security false as mentioned in microsoft kb article.

And there's nothing any issue with hardware/firewall as my application's login and other forms are working fine(which use same database with same connection string)

Can any one please help me to solve this error?

With Regards,

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May 26, 2007

Hi We have a written a error log in Global.asax. which capture below mentioned error in the prodcution server. Same applications is working fine in some locations and some loactions we are getting the error.Any body knows why this error is occurs.Any body knows why this error is occurs. Error Message:General network error. Check your network documentation.Stack Trace: at System.Data.SqlClient.SqlInternalConnection.OpenAndLogin() at System.Data.SqlClient.SqlInternalConnection..ctor(SqlConnection connection, SqlConnectionString connectionOptions) at System.Data.SqlClient.SqlConnection.Open() at datalayer.sqldb.Execute(String ProcedureName, SqlParameter[] Parameters) at lms.User.GetUserDetails(String strUserid)ITs at LMS.Login.w_btn_Login_Click(Object sender, EventArgs e) at System.Web.UI.WebControls.Button.OnClick(EventArgs e) at System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) at System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)

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Oct 4, 2007

 Hi,I am using .Net 1.1 for my web application.And my database server is SQL Server 2005. My application is running fine, as i can login to it and also able to view pages. But when i open Order management(having 3K records) its give me error,General Network Error. Check your network documentation  I have also searched many articles  and tried following solutions but nothing working- connectiontimeout = 0, max pool size = 7500/100, pooling = false- SSL disabling enforce security false as mentioned in microsoft kb article. And there's  nothing any issue with hardware/firewall as my application's login and other forms are working fine(which use same database with same connection string) Can any one please help me to solve this error? 

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General Network Error. Check Your Network Documentation

Feb 8, 2004

When I try to update the site setting, I get this Error and I don't know how to fix.

Server Error in '/DotNetNuke' Application.
--------------------------------------------------------------------------------

General network error. Check your network documentation.
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: General network error. Check your network documentation.

Source Error:


Line 281:
Line 282: myConnection.Open()
Line 283: myCommand.ExecuteNonQuery()
Line 284: myConnection.Close()
Line 285: End Sub


Source File: C:DotNetNukeComponentsAdminDB.vb Line: 283

Stack Trace:


[SqlException: General network error. Check your network documentation.]
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream) +721
System.Data.SqlClient.SqlCommand.ExecuteNonQuery() +196
DotNetNuke.AdminDB.UpdatePortalInfo(Int32 PortalId, String PortalName, String PortalAlias, String LogoFile, String FooterText, Int32 UserRegistration, Int32 BannerAdvertising, String Currency, Int32 AdministratorId, String ExpiryDate, Double HostFee, Double HostSpace, String PaymentProcessor, String ProcessorUserId, String ProcessorPassword, String Description, String KeyWords, String BackgroundFile, Int32 SiteLogHistory) in C:DotNetNukeComponentsAdminDB.vb:283
DotNetNuke.SiteSettings.Update_Click(Object sender, EventArgs e) in C:DotNetNukeadminPortalSiteSettings.ascx.vb:287
System.Web.UI.WebControls.LinkButton.OnClick(EventArgs e)
System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument)
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument)
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData)
System.Web.UI.Page.ProcessRequestMain()


--------------------------------------------------------------------------------
Version Information: Microsoft .NET Framework Version:1.1.4322.573; ASP.NET Version:1.1.4322.573

Please Help!

Thank you,

dlouanis

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Jan 9, 2006

I use sqlclient to connect directly from my mobile 5 pocketpc to a sql server 2005 database on my desktop.

I use a sqldatareader to traverse the results of a query that delivers 2 fields: (1) the filespec, and (2) the image field.

I use a filestream with a binary writer to write the contents of the image data to the pocketpc's storage card.

I have a test table with 10 images, not one more than 4 MB.  I cannot complete a test run prior to receiving the  general network error.

The pocketPC is connected via activesync to the desktop, and I connect to the database with:

Integrated Security=false;
user id=sa
password=admin.

Any help with this strange error would be greatly appreciated.

Wil

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Oct 11, 2006

Hi I get a "General Network Error Check network documentation" error sometimes, but its only while insert or update statements are fired while selects keep working perfectly.

The Error details are as follows:
General network error. Check your network documentation.
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: General network error. Check your network documentation.
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: General network error. Check your network documentation.]
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream)

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Jul 1, 2006

Hi All,I've been struggling with this for hours...Could someone please advise me on how to convert my current File based SQL Server Express website to a Server based SQL Express one.Particularly interested in what I need to do in the SQL Express management tool, changes I need to make the projecvt itself and changes needed to get IIS to understand things have been changed.Thanks,Martin.

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Aug 16, 2005

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Jul 28, 2007



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What is client network and server network alias in SQL server.

when and why we should use that mean what is the requirement of ALIAS in SQL Server.

Thanks

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Aug 6, 2006

Hi
I'm pretty new to all of this. I downloded a starter kit and am a bit confised as to SQLExpress. I have SQL Server already installed and just wondering what the option are.
I am currently using Visual Web Developer Express Edition and in the config file data source is SQLExpress and can't go any further. I don't want to mess with my current setup so just want to get some sugestions first.
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Thanks
GP 

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Apr 2, 2007

I have just created a website with membership just using the standard SqlExpress auto generated file
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I get the following Error
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Apr 3, 2007

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well sorry for this im just new..and one more thing..can i include Ado.net on it if my connection is "SQLEXPRESS" just i said?
Thanks for the answer....

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Jun 20, 2008

Hi

I am new to this forum .
I am running through few problems for sqlserver account settings .

I) My registery key entry for MSSQLserver just has a client folder .
2) My sql server configuration manager just has
sqlserver 2005 services , native client configuration and 2005 network configuration.


I can't see any server name or databases under it.


3)I normally work on EMS lite so I can see my ./SQLEXPRESS as server and databases under it and i can create logins etc ..I assigned db_owner role to one of my recent created database.
but when I try to connect it says :

The user is not associated with sqlserver connection.

5) i have sqlserver express service running, vss and sql server browser running.


I googled and searched for the solution and it says the authentication mode should be turned to mix mode form win authentication.

But from where. Have i missed some installation .I am able to connect to my other database from EMS.





Please help me out.
Thanks in advance
SJ

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May 25, 2007

I am trying to write an application for a MSSQL database, using SQL Express,and Visual Studio (Express edition)I tried to connect to an existing database (named testing) but to no avail.Visual Studio claims the database does not exist.Any ideas?TIA--Q: What is the difference between a mathematician and a philosopher?A: The mathematician only needs paper, pencil, and a trash bin for hiswork - the philosopher can do without the trash bin...

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May 27, 2007

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I tried it many times on different servers with different OSes, etc

Does it mean that SP2 for Expres Edition should be downloaded and applieŠ² separately?

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Jul 19, 2006

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Jul 22, 2006

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Sep 29, 2006

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May 4, 2007

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Oct 2, 2007

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