SQL den datatable doldurmak için kullanılan yöntemler

        
        SqlConnection conn = new SqlConnection(connString);        
        SqlCommand cmd = new SqlCommand(query, conn);
        conn.Open();

        SqlDataAdapter da = new SqlDataAdapter(cmd);
        
        da.Fill(dataTable);
        conn.Close();
        da.Dispose();

       
        DataTable dt = new DataTable();
        SqlCommand cmd = new SqlCommand();
        cmd.Connection = conn;
        conn.Open();
        cmd.CommandText = sql;
        SqlDataReader dr = cmd.ExecuteReader();
        dt.Load(dr);
        conn.Close();