Connection String Dot Net

 String conString = "Data Source = localhost:1521 / orcl; User Id =labs;Password = labs;";
            OracleConnection con = new OracleConnection(conString);
            con.Open();
            
            OracleCommand cmd = new OracleCommand("insert into TEST_APEX(NAME,GENDER,CONTACT,EMAIL,CITY,COUNTRY) values('" + Name.Text+ "'," + "'" + Gender.SelectedValue + "'," + "'" + Contact.Text + "',"+"'" + Email.Text + "'," + "'" + City.Text + "'," + "'" + Country.Text + "')", con);

            cmd.ExecuteNonQuery();
            Name.Text="";
            Gender.SelectedValue = "";
            Contact.Text = "";
            Email.Text = "";
            City.Text = "";
            Country.Text = "";
            Response.Write("Employee inserted sucessfully.<br />");
            con.Close();

Manual Waiting in Loop

 begin
for i in 1 .. 1
loop
dbms_output.put_line(to_char(sysdate, 'mi:ss'));
dbms_lock.sleep(.5);
end loop;
end;
/