pRecordset->Open(  
                           _bstr_t(strSQL),    
                                 _variant_t((IDispatch*)m_pConnection,  true),    
                                 adOpenStatic,    
                                 adLockOptimistic  ,    
                                 adCmdText  
                       );  
可以返回一个操作成功或者失败的值。HRESULT类型的。