private void button68_Click(object sender, EventArgs e)
        {           
            string sql = "SELECT 1, 2, 3, 4, 5 FROM Table 1 where 1= '1' " +
                "union SELECT 1, 2, 3, 4, 5FROM Table2 where 1= '2' ";
            string path = "baza1.db";
            string ConnStr = "Data Source=" + path;
            SQLiteConnection connection = new SQLiteConnection(ConnStr);
            connection.Open();
            SQLiteDataAdapter adapter = new SQLiteDataAdapter(sql, connection);
            DataSet ds = new DataSet();
            adapter.Fill(ds);
            dataGridView1.DataSource = ds.Tables[0];
            
        }