zquery1.Close;
zquery1.SQL.Clear;
zquery1.SQL.Add('insert into dados (nome,idade) values (:a,:b)');
zquery1.ParamByName('a').AsString:=edit1.Text;
zquery1.ParamByName('b').AsInteger:=StrToInt(edit2.text);
zquery1.ExecSQL;
ShowMessage('Registo Inserido');