get free code

using System.Data.SqlClient;

SqlConnection oSQLConn = new SqlConnection();
oSQLConn.ConnectionString =
"Data Source=(local);" +
"Initial Catalog=myDatabaseName;" +
"Integrated Security=SSPI";
//Or
// "Server=(local);" +
// "Database=myDatabaseName;" +
// "Trusted_Connection=Yes";
oSQLConn.Open();
...
oSQLConn.Close();

For SQL Server ODBC Driver
' VB.NET
Imports System.Data.Odbc
...
Dim oODBCConnection As OdbcConnection
Dim sConnString As String = _
"Driver={SQL Server};" & _
"Server=MySQLServerName;" & _
"Database=MyDatabaseName;" & _
"Uid=MyUsername;" & _
"Pwd=MyPassword"
oODBCConnection = New Odbc.OdbcConnection(sConnString)
oODBCConnection.Open()