根据rowid得出存储的数据文件跟数据块

declareridtyp number;objnum number;relfno number;blno number;rowno number;rid rowid;beginselect rowid into rid from emp where empno=7788;dbms_rowid.rowid_info(rid, ridtyp,objnum,relfno,blno,rowno );dbms_output.put_line('Row Type:' || to_char(ridtyp));dbms_output.put_line('objnum:' || to_char(objnum));dbms_output.put_line('relfno:' || to_char(relfno));dbms_output.put_line('blno:' || to_char(blno));dbms_output.put_line('rowno :' || to_char(rowno ));end;/