Access sql server database remotely through c#

Question

4.00/5 (1 vote)

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I am trying to access data from other machine in network. I am using oledb connection to access data from remote machine. The code i wrote to connect to sql server was:

C#

try
            {
                OleDbConnection con = new OleDbConnection("Provider=SQLOLEDB;Data Source=192.168.2.12\\BTBP;Connect Timeout=20;Initial Catalog=consultant;User ID=sa;PWD=BTBP;Network Library=DBMSSOCN;");
                con.Open();
                MessageBox.Show(con.State.ToString());
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }

But it is giving an exception : [DBNETLIB][ConnectionOpen (Connect()).]Specified SQL server not found.

I am not able to solve this problem. I have activated the remote connection of sql server on remote server.

What i am missing?

Posted 8-Feb-12 22:05pm

Avinash6474

Updated 8-Feb-12 22:15pm

Herman<T>.Instance

v2

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Comments

Herman<T>.Instance 9-Feb-12 4:18am

is there a firewall blocking port 1433 or 1434 (since you use a named instance BTBP)

Avinash6474 9-Feb-12 5:00am

How to check that port number?

2 solutions

Solution 1

using System;
using System.Data;
using System.Data.SqlClient;

/// <summary>
/// Demonstrates how to work with SqlConnection objects
/// </summary>
class SqlConnectionDemo
{
static void Main()
{ SqlConnection conn = new SqlConnection(
"Data Source=AJAY-FBFC0452;Initial Catalog=fraiser;Integrated Security=True");

SqlDataReader rdr = null;
try
{
conn.Open();
SqlCommand cmd = new SqlCommand("Insert into detail values('Rajesh','Rathod')", conn);
cmd.ExecuteNonQuery();
}
finally
{
if (rdr != null)
{
rdr.Close();
}
if (conn != null)
{
conn.Close();
}
}
}
}
you have to close the connection.in finally block..

Posted 8-Feb-12 22:20pm

thakurajay93

Updated 8-Feb-12 22:21pm

v2

Comments

Avinash6474 9-Feb-12 4:59am

After con.Open() method call i am getting exception. Sql server not found. The sql server db is on other machine in network.

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Avinash6474 · Accepted Answer · 2012-03-12T17:53:00

I have created a TCP/IP port number for a sql server instance,and bind the port with ip address of remote ppc on wich db is present.
-> Go to Sql server Configuration Manager-> Select protocol from left hand pane-> Select TCP/IP from right pane and go to properties-> select IP address tab-> Go to "IP All" section copy "TCP Dynamic address"-> go to IP1 -> paste the number at Tcp dynamic address-> set the remote machin address at the IP address field.-> click apply-> ok

In connection string:
connStr = "Provider=SQLOLEDB;Data Source=" + Ip address of remote machine,TCP port number+";Connect Timeout=20;Initial Catalog=" + dbName + ";charset=utf8;Network Library=DBMSSOCN;Integrated Security=SSPI"