关于seek方法的疑问

sql server 是不是不支持seek方法啊？
我的代码如下： CString strConnection="Provider=SQLOLEDB;Data Source=bao;Initial Catalog=dataminer;User Id=sa;Password=;";
m_pConn->Open(_bstr_t(strConnection),"","",NULL);m_pRecordset->CursorLocation = adUseServer; m_pRecordset->Open("employees", _variant_t((IDispatch*)mpdb, TRUE), adOpenKeyset, adLockReadOnly, adCmdTableDirect);
d可是m_pRecordset->Supports(adSeek);的返回值是0啊。我该怎么办？