int __fastcall Execute(const System::UnicodeString SQL,
      Db::TParams* Params = (Db::TParams*)(0x0), TEDBQuery* Query =
      (TEDBQuery*)(0x0))

 You may pass in a TEDBQuery component that has already been created for use with this method. However, in such a case you should be aware that several properties of the TEDBQuery component will be overwritten by this method in order to execute the SQL.