A network related exception.

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SQL-Server-2005

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)

C#

public void store(string a)
        {
            SqlConnection connect=null;

            connect = new SqlConnection("server= . ;  initial catalog=Student_Tracker DB ; integrated security= true ;");
            connect.Open();
            connect = new SqlConnection("insert into dbo.Student_Details (named) values (a)");
            connect.Close();
        }

This is the exception which i ma getting on the "connect.Open()" .

Thanks in advance :)

Posted 29-Jul-12 20:27pm

rorrykeys

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5 solutions

Solution 1

I think you add to your server name and after then instant name..
Like

C#

SERVER_NAME\SQLEXPRESS

or if it is local Server then

C#

.\SEQEXPRESS

in short servername\serverinstantname

Thank you.

Posted 29-Jul-12 20:33pm

jasmin_patel

Updated 29-Jul-12 20:35pm

v3

Solution 2

C#

public void store(string a)
        {
            SqlConnection connect=null;

            connect = new SqlConnection("server= localhost\sqlexpress ;  initial catalog=Student_Tracker DB ; integrated security= true ;");
            connect.Open();
            connect = new SqlConnection("insert into dbo.Student_Details (named) values (a)");
            connect.Close();
        }

Posted 29-Jul-12 20:35pm

Santhosh Kumar Jayaraman

Solution 3

C#

public void store(string a)
        {
            SqlConnection connect=null;

            connect = new SqlConnection("Data Source= (local) ;  initial catalog=Student_TrackerDB ; integrated security= true ;");
            connect.Open();
            connect = new SqlConnection("insert into dbo.Student_Details (named) values (a)");
            connect.Close();
        }

Remove the space between the "Student_Tracker DB" and Change the Database name and use Credentials if any. For example if you connect database using userID =sa then Also provide password.

Posted 29-Jul-12 20:39pm

awaisiq

Updated 29-Jul-12 20:47pm

v2

Solution 4

If your database name has spaces use brackets around it :

C#

connect = new SqlConnection("server= . ;  initial catalog=[Student_Tracker DB]; integrated security= true ;");

Or remove the space like : Student_Tracker_DB

Posted 29-Jul-12 20:40pm

Mehdi Gholam

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rorrykeys · Accepted Answer · 2012-07-29T21:22:00

public void store(string a)
{
SqlConnection connect=null;

connect = new SqlConnection("server= servername;initial catalog=Student_Tracker;User Id=userid; password=Password@123");
connect.Open();
SqlCommand cmd = new SqlCommand("Insert into Student_Details (named) values (a)", connect);
cmd.ExecuteReader();
connect.Close();
}

i got this solved :)