Connecting To Web Database From Desktop Application.
Jun 24, 2007
I am thinking of using my web database as the database to use for my program, though not sure how feasible due to connection speeds and having to transfer that info.
what I am using as the connection string is
con.ConnectionString = "Data Source=databse ipadress inserted here; Initial Catalog=databasename here;Integrated Security=True"; with real data obviously inserted into the ip and tables, but when i try and send values there it just hangs and then crashes. I am thinking its not finding the database. Is there something else im to do?
I am using the exact same code as when i use my own machine as the server, and it works great that way, only thing different is the trying to send to the web server.
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Nov 1, 2006
The sample application provided with Access Database Synchronizer fires a "A request to send data to the computer running IIS has failed. For more information, see HRESULT." exception on my WinCE 4.2 device.
I debugged it with VS2005 to see what was going on and found that the problem resides in the line:
m_connDesktop.Pull("MSysObjects","SELECT Name FROM MSysObjects WHERE Type=1 and flags=0",accessSysConnectString,RDATrackOption.TrackingOff,"Err_MSysObjects");
It seems that connection m_connDesktop is ok but calling Pull method fails.
I've verified that SSEvAccessSync service is started when ActiveSync detects device connection and that firewall rules are correctly updated.
Also, i verified my System.mdw and i discovered that there is no "MSysObjects" table (only MSysGroupList, MSysGroupMembers, MSysUserList and MSysUserMemberships queries are there).
Do you think the problem is there?
How can i solve it without damaging System.mdw?
I cannot figure out what's the purpose of this line of code, can you help me?
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Jan 31, 2008
Hello
I am writing a Desktop application accessing a SSCE database. I am running Windows XP SP2, VS2005 SP1, and have SQLServerCE3.1 installed. Debugging the application shows that ds.m_spInit->QueryInterface() returns E_NOINTERFACE. I have checked that SSCE runtime library is installed, IDBCreateSession uuid exists in the registry and m_spInit.CoCreateInstance(CLSID_SQLSERVERCE_3_0) return S_OK. Can you suggest me what need adding/installing to get the CSession.Open(datasource) working?
Thanks
Ares,
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Mar 10, 2008
I got problem connecting database to my asp application (in teh code of sign up button)
here's the code
SqlConnection con = new SqlConnection();con.ConnectionString = ConfigurationManager.ConnectionStrings["connectionString"].ConnectionString;
SqlCommand cmd = new SqlCommand();
cmd.Connection = con;
cmd.CommandText = "INSERT INTO Students (FirstName,LastName,Address,Birth_Day,Birth_month,Birth_year,Country,User_Name,Password,SecretQuestion,Answer,E_mail,Grade,Dep_Name) VALUES (@FirstName,@LastName,@Address,@Birth_Day,@Birth_month,@Birth_year,@Country,@User_Name,@Password,@SecretQuestion,@Answer,@E_mail,@Grade,@Dep_Name)";string firstname = this.FirstName.Text;
string lastname = this.LastName.Text;string address = this.Address.Text;
int bd = int.Parse(this.Birth_Day.Text);string bm = this.Birth_month.Text;
int by = int.Parse(this.Birth_year.Text);string cntry = this.Country.Text;
string UN = this.User_Name.Text;string pw = this.Password.Text;
string SQ = this.SecretQuestion.Text;string ans = this.Answer.Text;
string em = this.E_mail.Text;string grd = this.Grade.Text;
string dep = this.Dep_Name.Text;cmd.Parameters.AddWithValue("@FirstName", firstname);
cmd.Parameters.AddWithValue("@LastName", lastname);cmd.Parameters.AddWithValue("@Address", address);
cmd.Parameters.AddWithValue("@Birth_Day", bd);cmd.Parameters.AddWithValue("@Birth_month", bm);
cmd.Parameters.AddWithValue("@Birth_year", by);cmd.Parameters.AddWithValue("@Country", cntry);
cmd.Parameters.AddWithValue("@User_Name", UN);cmd.Parameters.AddWithValue("@Password", pw);
cmd.Parameters.AddWithValue("@SecretQuestion", SQ);cmd.Parameters.AddWithValue("@Answer", ans);
cmd.Parameters.AddWithValue("@E_mail", em);cmd.Parameters.AddWithValue("@Grade", grd);cmd.Parameters.AddWithValue("@Dep_Name", dep);
con.Open();
cmd.ExecuteNonQuery(); // the error appears here
con.Close();
could anyone Help me urgently???
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Jul 15, 2005
Hi,
I have a problem connecting to database using windows authorization.
this is sample codeSqlConnection oSQLConn = new SqlConnection();oSQLConn.ConnectionString="integrated security=SSPI;Server=SHAREPOINT\EPM;Database=STS_sharepoint_1;Trusted_Connection=true;";oSQLConn.Open(); on Windows Aplication it work good but on ASP.NET Web application I got an Server Error - Login failed for user *****************is it problem with IIS configuration???
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Oct 6, 1999
I know how to create an Application role in SQL server 7. Now how do I connect to the database from VB using that Application Role? I can't find anything about this topic anywhere. Is this the purpose of an Application role or am I way off?
Thanks for the help
Steven Abt
StevenA@grsgroup.com
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Mar 8, 2007
I'm trying to connect to a sql express database on my local machine, using the following connection string:
SqlConnection thisConnection = new SqlConnection(@"Data Source=C:Program FilesMicrosoft SQL ServerMSSQL.1MSSQLDataTest.mdf");
However, I keep getting an error message saying "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."
Why would my application be trying to connect remotely when the database is on my local machine? And how can I fix this problem?
Thanks
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Jan 26, 2007
I have created an application which uses a SQL Express database. The program runs fine on the the computer where I built the app, however when I install the app on another computer I get an error telling me that under default SQL Express does not allow remote connections. The problem is that I dont want a remote connection I want a local connection, the database file is on the commputer. How can do get my application to look for the database on the local machine.
My connection string is:
Data Source=(local)SQLEXPRESS;Initial Catalog="C:DOCUMENTS AND SETTINGSADMINISTRATORPLDAQ.MDF";Integrated Security=True
I have made sure that the file is in the correct directory.
Any help would be greatly appretiated
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Jun 28, 2007
i have an application that uses sqlce.. now i want to install sqlce with my installer instead of seperate installer... could you please guide me how can i do this? i have created installer for my application but how to integrate sqlce with it...
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May 27, 2008
I was thinking of replacing my desktop programs I do in Microsoft Access to SSEE. I am getting up to speed by some books and tutorials.
How would I distribute a program that has a SSEE database? I currently have in my application startup path a folder called "Database" that contains the .mdb, could I do the same thing with SQL Server. If so, what does that do to the connection string.
Thanks for any suggestions beforehand.
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Jun 10, 2007
Hi All,
I am interested in synchronising 2 sdf files which are sitting on 2 different PDAs and I want to synchronise both of them with or without desktop application. C# applications are used to talk to the applications.
Is it possible or not and if possible how can i do that. Any code snippets or any links to similar forum posts or anything will be of great help. I am a C# programmer but not SQL Developer.
Regards
Trushar
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Oct 23, 2007
can we open a sqlce databse stored on desktop hard disk in desktop application ?
Regards
Mukesh Gupta
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Dec 17, 2007
Hi,
I was migrating one of my applications to VS.NET 2008 to start testing the new platform and encountered an error. One of my application requires the use of System.Data.SqlServerCe namespace to create a SQL Server CE database on a desktop machine.
The error is raised when I try to use a SqlCeCommand to insert rows in a table using parameters. If the order of the fields in the INSERT command does not match the order of the fields in which the table was created, an error is raised.
Investigating further, I noticed that the INSERT command was trying to insert the value of a parameter in an incorrect field. For example, the value for the field23 was being inserted into field22.
It looks like the SQL CE engine is rearranging the fields in the INSERT command to match the order of the fields in the table, but forgets to rearrange the parameters of the SqlCeCommand as well.
I give the example codes in the next posts. I will give it in both VB.NET and C#.
For both versions, you just need to create a Windows Application and add a reference to System.Data.SqlServerCe.dll. Insert the corresponding code into the Form1 partial class.
In the example, the constant RaiseError can be set to Boolean.True in order to raise the error. Set it to Boolean.False to execute correctly.
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Jan 8, 2008
Am I correct in assuming that installing a SQL EE application on to a local runtime desktop would require a lot of experienced user intervention to install the SQL to each local cpu? Can a SQL app be installed automatically w/o a user intervening?
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Jun 10, 2006
hi
i want to know that how to manage the sql server transaction in a
big desktop networking application?
for example
there are 200 tables in
database. many of that tables have relatationship. i have a form in
frontend which holds nere ablut 50 tables deffrent calculated amount. i
want to ADD, EDIT and DELETE, SAVE(commit), CANCEL(roll back) them and
same time another use will do the same work from another pc. if there
are 100 user does the same work (add, edit, delete, save, cancel) how
could i magage my sql server data???
i also want to know that
1 kind of
proffessionsl way to use sql server and vb.net?
2 what kind of septs to
develop a desktop networking application with sql server?
3 how i could
manage the transaction in sql server when there are many-many user
working in the same database(add, edit, delete, save-commit,
cancel-rollback).<img src="images/emoticons/smile_baringteeth.gif">
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Jul 23, 2005
Hi there,I sincerely hope that someone out there can help. I have twoinstances of the SQL 2000 Desktop Engine running. One is on my localmachine for development and the other is on another machine on ournetwork which is the production environment. I have built an Access2003 front end application which connects to this database. Thisworks fine locally, as you would expect. I successfully installed thedatabase on the production machine and am able to connect to it viaAccess 2003 (using the Data Link Properties window) and from thirdparty database manager software (similar to Enterprise Manager). I amnot able to to connect to the database via my application.I am using the "sa" account with a strong password. This is myconnection string:strConnection = "Provider=sqloledb;DataSource=server02;UserId=sa;Password=strong;Initial Catalog=Test"The error I'm getting is:"Connection cannot be used to perform this operation. It is eitherclosed or invalid in this context."The connection string is the only thing that changes in my code when Iswitch from my local to my production database. Is there some reasonthat I can't use the "sa" account in this fashion that I'm not awareof? I'd rather not use integrated security for simplicity's sake asthis is a small, internal application. Also, I would have thoughtthat if that was the issue, I couldn't use "sa" at all, even locally.I'm going to post to the Access group as well but thought someone heremight have some advice to offer as well.Thanks,Barb
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Dec 6, 2007
Hi,
I am developing a windows application that needs to communicate with a remote SQL server 2005 database. Server allows remote connections and MSDTC service also running. Do I need to run MSDTC service on the client machine where I use desktop application ? any ideas ? It's throwing some error like
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.
But my SQL Server allows remote connection, and I am able to do a select statement.
But when I insert/update anything, it's throwing this error. I guess some problem with MSDCT. Anybody have any idea ?
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Jul 23, 2005
What is actually happening behind the scenes when you open a connectionto sql server in code such as C# or vb.net.
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Mar 6, 2007
Hi,
i am stuck in a strange situation.
I
have successfully built my application setup through InstallSheild 12.
Which first installs SQL Express user define instance as a
pre-requisite and then install my application files. First time when i
run my application (without restarting the pc), it connects
successfully with user define instance.
But as i restart my PC and try to open my application, it is not connecting with database.
i am using the following command line to install SQL Express 2005 user define instance:
"/qn ADDLOCAL=SQL_Engine INSTANCENAME=MyInstance SECURITYMODE=SQL SAPWD="test" AUTOSTART=1"
if
i change Remote connection to "using both TCP/IP and named pipes"
through "SQL Server Surface Area Configuration" and then restart my pc
again. My application connects successfully with Database.
Please
guide me where i am getting wrong in building setup. do i have to add
something in my command line to not get this error
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Jan 30, 2007
When deploying my application that uses sql server it doesn't connect to the server.
I checked the connection string & it's ok the server instance is the same.
The computer name isn't the same & i use the .SQLExpress as the data source.
I get an error saying 'sqlserver does not allow remote connections error 26 locating server / instance specified'.
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Sep 28, 2006
How do I get rid of this error message when tring to log into my web site user account stored on the default ASP.NET 2.o generated database on my local computer?
Server Error in '/FundACure.org' Application.
Cannot open user default database. Login failed.
Login failed for user 'LANBOYASPNET'.
Where "LANBOY" is the name of my computer. I am logged in as myself "LANBOYKEVIN" My web page is trying to log into the server using the name "ASPNET" which I assume is a standard ASPNET user name.
I thought it was failing because I needed to grant access to this user in the server, so I added the account for the server. Same problem.
So I thought I needed to create this user in my Windows XP user list. When I tried it said "this user already exists" even though it isn't displayed in the list. That is when I realized that it is a standard user established by ASP.NET. It is probably supplied in the C# code through a base class.
So, how do I get this DB to connect? Is the user missing, or is it that my connection string is wrong?
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Aug 31, 2006
I have an ASP application which is currently using a SQL 2000 Database, attaching via SQLOLEDB. I am getting ready to migrate my ASP application to .NET using SQL Server 2005 Express. The only problem, is that I am unable to connect successfully from my ASP applcation to my DB under SQL Express.
I have taken all of the steps that I have read, including the blog by Ming Lu. I still cannot be through.
I have included both the messages that are thrown and comments about the drivers and connection strings.
I have enabled TCP/IP and Named Pipes for SQL 2005 EE. I have also included the executable, port 1433, port 135, etc. in the firewall exceptions.
I have defined the DB in ODBC using both the Native Sql driver and the SQL Driver. Connection authentication is via SQL Server Authentication.
If anyone has any input, I would be grateful.
Error Messages:
Named Pipes Provider: Could not open a connection to SQL Server [53]. - using SQLNCLI - SQL Native Driver
::[DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist or access denied. - using SQLOLEDB - SQL Native Driver
::[DBNETLIB][ConnectionOpen (Connect()).]SQL Server does not exist or access denied. - using SQLOLEDB - SQL Server Driver
Named Pipes Provider: Could not open a connection to SQL Server [53]. - using SQLNCLI - SQL Server Driver
connection string for SQLOLEDB: "PROVIDER='SQLOLDEB';DATA SOURCE='.SQLEXPRESS';User ID='Abilities2005';Password='abilities';Initial Catalog='nbdc2005';"
connectdion string for SQLNCLI: "PROVIDER='SQLNCLI';DATA SOURCE='.SQLEXPRESS';User ID='Abilities2005';Password='abilities';Initial Catalog='nbdc2005';
source name varied from .SQLEXPRESS, localhostSQLEXPRESS and machinenameSQLEXPRESS
Thanks, Tom
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Oct 31, 2007
i am having 2 sql servers one is web sql server server and other server is my local sql server. i am making web application through which i want to connect both sql servers at a time and by selecting data from web server i want to insert it into my local sql server both having same database on which i want to work , i want to know how it can be done
my idea as follows in web.config i specify 2 connection string and by selecting data from websql server database table i going to store it in dataset and then i return dataset to another function which connects to local sqlserver database.but database records are much large. can any body guide me .
i am going to place my web application on local server (C# asp.net 2.0) .
thank you,
i tried this code
c# file
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
Uupdatedata();
}
public void Uupdatedata()
{
string constr1=ConfigurationSettings.AppSettings["abccon1"];
string constr2 = ConfigurationSettings.AppSettings["abccon2"];
System.Data.SqlClient.SqlConnection dbcon1 = new System.Data.SqlClient.SqlConnection(constr1);
dbcon1.Open();
System.Data.SqlClient.SqlConnection dbcon2 = new System.Data.SqlClient.SqlConnection(constr2);
dbcon2.Open();
SqlDataReader dr;
SqlCommand cmd = new SqlCommand("select * from Unit_Master",dbcon1);
dr = cmd.ExecuteReader();
while (dr.Read())
{
string Sql = "insert into Table1(Unit_Id,Unit_Desc) values(" + dr.GetInt32(0).ToString() + "," + dr.GetString(1) + ")";
SqlCommand cmd1=new SqlCommand (Sql,dbcon2);
//cmd1.EndExecuteNonQuery ();
}
//dr.Close();
//dbcon2.Close();
}
web.config<configuration>
<appSettings>
<add key="abccon1" value="Data Source=comp01;Initial Catalog=abc;User Id=sa ; Password=sa"/>
<add key="abccon2" value="Data Source=comp01;Initial Catalog=abctest;User Id=sa ; Password=sa"/>
</appSettings>
<connectionStrings/>
this 2 databases are from single my loacl server
it wont work it gives exception
please healp me.
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May 27, 2007
Hello, Everybody.
Help me please with one problem which I'm facing with while deploying java server application on my computer (this java app is jBilling). I have configured it as it was said in docs, I have added environment variable CLASPATH as Microsoft documentation said. I'm using SQL Server JDBC driver 1.2 by Microsoft. The result is that I find this message in log file:
2007-05-27 17:21:41,906 WARN [org.jboss.resource.connectionmanager.JBossManagedConnectionPool] Throwable while attempting to get a new connection: null
org.jboss.resource.JBossResourceException: Could not create connection; - nested throwable: (org.jboss.resource.JBossResourceException: Failed to register driver for: com.microsoft.jdbc.sqlserver.SQLServerDriver; - nested throwable: (java.lang.ClassNotFoundException: No ClassLoaders found for: com.microsoft.jdbc.sqlserver.SQLServerDriver))
at org.jboss.resource.adapter.jdbc.local.LocalManagedConnectionFactory.createManagedConnection(LocalManagedConnectionFactory.java:168)
... and so on.
I have copied sqljdbc.jar to lib folder of the server. That's how I specified connection string:
jdbc:microsoftqlserver://localhost:1434;DatabaseName=Billing;integratedSecurity=false;
Can not think out what to do else. Maybe somebody knows what to do about it?
Many thanks
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Sep 26, 2006
Dear All,
i have a question abt winCE 4.2 and SQL server CE.
i am using VB.net of Visual Studio 2005
My platform is using a PDA with winCE 4.2 and SQL server CE. The Host program is using dbf files on desktop side.
I got a problem of how to sync / read the sql CE data from a windows application.
so, i wanna ask,
1. any method to access the data from winCE data by windows application? or can i convert the sdf file to windows readable files? or any others?
2. Can i use a MDB to sync with SQL server CE?
can i synchronize the mobile device which has a SQL Server CE database with the Access database on the desktop?
last question,
3. is that windows CE .net 4.2 not support pocket access (cdb) anymore?
please help me out
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Jul 22, 2015
We have a bought in application written in Visual Basic 6 using ADO 2.7 to connect to SQL Server. The application has two connections strings and uses internal logic to determine which of the two connection strings connects to a read-write database. It does something as simple as trying an update that makes no changes to a very small table somewhere.
Previously this application connected to a Mirrored Database hosted on two Windows Server Failover Clusters and SQL Server 2005.For the future the App will be connecting this application to a SQL Server 2014 Availability Group.The Availability Group is made up of four servers, in a cluster, two at one site on Subnet A and the other two at a second site on Subnet B. The Availability Group has been given a Listener with a DNS name of AGLISTEST on port 1433 with two Static IP addresses, one for each subnet.
Our Contractor has configured the Application’s connection strings to connect to the two Static IP addresses assigned to the AG. He is of the opinion that although ADO has zero understanding of an Availability Group, at least one of the Static IP Address will translate to the Availability Group primary server because it is a Cluster Resource and so act like a Cluster IP Address on Windows Server Failover Cluster; i.e. sort of mimicking the previous configuration. This does work and he has demonstrated it, however I can’t find any article that proves to my satisfaction this is intended behavior not something that accidentally works. If it is accidental behavior then that would be something that might stop working at an unexpected point in the future.
All the research I have found relates to connecting to the AG Listener name, and all the multi-subnet issues and Active Directory issues that go with connecting using what is a legacy client.So; the question is, is this translation / redirection of static IP Addresses assigned to an Availability Group listener documented and safe?
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Mar 27, 2008
Hi, I would create a vb2005 application that allow me to edit a sdf database stored into a pda connected at pc with activesyn directly on my desktop as well as "SQLCE Database View".
How can i do it??
Please help me
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Jan 24, 2007
Please Help me!
I hav emulator Windows CE 4.0 with Visual Studio 2003, C#.
I want connect to sql server 2000......after read all posts of this subject and try all varieties modes of connecting string.....in sql profile i see that application in emulator try to connect the sql server but i have the same exception :
PlatformNotSupportedException
Here my code:
strcon = "Server = developer\devsql;Initial Catalog = master;User ID = domain\login; password = ******;Integrated Security = false";
What i did wrong or may be miss something?
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Jun 19, 2007
I am dealing with an old ASP.NET 1.1 web app that I want to fix and
update. The existing site has an SQL database on the web host's SQL
server. I want to rip a complete copy of this database (it isn't large,
only 9MB) onto my desktop computer, so I can alter it and "bench test"
the changes I'm making to the overall application in VS2005.
Now, I have tried to yank a copy of this database and its structure
using GUI programs like Visual Studio 2005, SQL Studio Manager Express, and EMS SQL
Manager, none seem to offer a "Save As" option. While I can easily make changes to the database and its tables
on the web host's server (sql.hostname.net) with no problem, I can't
figure out how to pull a copy off of their server and onto my machine...
Does this problem have a very simple solution that I am overlooking?
Thank you for any advice!
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Jan 21, 2006
I have searched through this forum and the news group
microsoft.public.sqlserver.ce
for this topic. I only find a post from Darren Shaffer and I requested a document.
Unfortunately, there is not a clear example of how to create a mobile database (sdf) on a desktop machine which contains VS 2005 and SQL server 2005 by using Visual Basic 2005.
I am sure a clear example in VB for this problem would help a lot of people. Hence anybody who knows how to perform this task, Please help these people.
Thanks in advance
Talat
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Nov 5, 1999
I am running 7.0 standard desktop on Workstation 4.0 and have run into a database size limitation of 10GB. I have all the newest
patches and have found no documentation that refers to a 10GB limitation. A September copy of VBA developer says that this edition
has a limitation of 4GB while the guides say that the Small Business Server edition would have a 10GB limitation. All other forms
of documentation say that there should be the standard mega-terabyte limit. I'm completely confused by this [lack of] documentation.
Any help???
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Jun 7, 2006
I want to physically move my .SDF file to my desktop and then access this file from VS 2005 VB.NET. Ideally, I would want to access this .SDF file from MS Access 2003 but I undersand this is not possible.
Here are my VS 2005 VB.NET statements....
Dim ConnPPC As New System.Data.SqlClient.SqlConnection("Data Source = C:Documents and SettingsG014436My DocumentsSQL
MobileActMgr6CE.sdf")
Dim mySqlDataAdapter2 As New SqlDataAdapter("select * from T0002_AE_Activity_Entry", ConnPPC)
mySqlDataAdapter2.Fill(myDataSet2)
On executing the last statement(fill)...I get the following error.
function failed: 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)
Does anyone have any suggestions?
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Nov 30, 2005
Dear friends,
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