with ADOQuery1 do begin Close; Sql.Clear; Sql.Add('select * from door_comm '); Sql.Add('where stopbit='ASFSDF' ');//这里错了吧。我看。前面的倒是对的。ADO补丁要注意打 Open; end;
with ADOQuery1 do begin Close; Sql.Clear; Sql.Add('select * from door_comm '); Sql.Add('where stopbit=:Qstopbit'); Parameters.ParamValues['Qstopbit'] :='ASFSDF'; Open; end;
with ADOQuery1 do begin Close; Sql.Clear; Sql.Add('select * from door_comm '); Sql.Add('where stopbit=:Qstopbit '); Parameters.ParamByName('Qstopbit').DataType := ftString; //// Parameters.ParamByName('Qstopbit').value:='ASFSDF'; Open; end;
with ADOQuery1 do begin Close; Sql.Clear; Sql.Add('select * from door_comm '); Sql.Add('where stopbit=:Qstopbit '); Parameters.ParamByName('Qstopbit').DataType := ftString; //// Parameters.ParamByName('Qstopbit').value:='ASFSDF'; Open; end;
with ADOQuery1 do begin Close; Sql.Clear; Sql.Add('select * from door_comm '); Sql.Add('where stopbit='ASFSDF' ');//这里错了好象错了 Open; end;delphi 字符串中两个单引号才是代表一个单引号;with ADOQuery1 do begin Close; Sql.Clear; Sql.Add('select * from door_comm '); Sql.Add('where stopbit=:Qstopbit '); Parameters.ParamByName('Qstopbit').AsSting:='ASFSDF'; Open; end;
begin
Close;
Sql.Clear;
Sql.Add('select * from door_comm ');
Sql.Add('where stopbit='ASFSDF' ');//这里错了吧。我看。前面的倒是对的。ADO补丁要注意打
Open;
end;
begin
Close;
Sql.Clear;
Sql.Add('select * from door_comm ');
Sql.Add('where stopbit=:Qstopbit');
Parameters.ParamValues['Qstopbit'] :='ASFSDF';
Open;
end;
begin
Close;
Sql.Clear;
Sql.Add('select * from door_comm ');
Sql.Add('where stopbit=:Qstopbit ');
Parameters.ParamByName('Qstopbit').DataType := ftString; ////
Parameters.ParamByName('Qstopbit').value:='ASFSDF';
Open;
end;
begin
Close;
Sql.Clear;
Sql.Add('select * from door_comm ');
Sql.Add('where stopbit=:Qstopbit ');
Parameters.ParamByName('Qstopbit').DataType := ftString; ////
Parameters.ParamByName('Qstopbit').value:='ASFSDF';
Open;
end;
begin
Close;
Sql.Clear;
Sql.Add('select * from door_comm ');
Sql.Add('where stopbit='ASFSDF' ');//这里错了好象错了 Open;
end;delphi 字符串中两个单引号才是代表一个单引号;with ADOQuery1 do
begin
Close;
Sql.Clear;
Sql.Add('select * from door_comm ');
Sql.Add('where stopbit=:Qstopbit ');
Parameters.ParamByName('Qstopbit').AsSting:='ASFSDF';
Open;
end;