对,我就是用TADOConnection来连接数据库,而且有这个表,下面是我的代码:
with DM_Drawback.LoginAQ do
begin
Close;
SQL.Clear;
SQL.Add('Select * From Loign');
SQL.Add('Where UserName=:p_UserID');
Parameters.ParamByName('p_UserID').Value:=UserEdit.Text;
Open;
if recordcount>0 then
begin
UserEdit.Text:=Trim(FieldByName('UserName').Value);
PasswordEdit.SetFocus;
end
else
MessageDlg('没有此用户的登记',mtConfirmation, [mbOk], 0)
end;