SOS !!!!! (50分)

Query3->Close();
Query3->SQL->Clear();
Query3->SQL->Add("update kehu set jiatingbh=");
Query3->SQL->Add("where kehubh =:kehubh");
Query3->ParamByName("p")->AsFloat=StrToFloat(Trim(Edit2->Text));
Query3->Prepare();
Query3->ExecSQL();
这些语句有问题码??????????
运行时提示错误:Error creating cursor handle
急!!!!!

with Quey3do
begin
close;
sql.Clear;
sql.Add('update kehu set');
// SQL->Add("update kehu set jiatingbh=");
sql.Add('jiatingbh=:d1');

sql.Add('where where kehubh =:d2');
//SQL->Add("where kehubh =:kehubh");
Parameters.ParamByName('d1').Value:=Trim(Edit1.Text);
Parameters.ParamByName('d2').Value:=Trim(Edit2.Text);
ExecSQL;
end;

应该是:
Query3->Close();
Query3->SQL->Clear();
Query3->ParamByName("p")->AsFloat=StrToFloat(Trim(Edit2->Text));======你没有给变量的值就先用它????
Query3->SQL->Add("update kehu set jiatingbh=");======你没有给变量的值就先用它????
Query3->SQL->Add("where kehubh =:kehubh");
Query3->Prepare();
Query3->ExecSQL();

这些语句没问题
问题在这语句之前
好好检查前面的语句是否有应该用ExecSQL
而用了open!

谢谢正如所言