SQL> select DBMS_ROWID.ROWID_RELATIVE_FNO(RowID), 2 DBMS_ROWID.ROWID_BLOCK_NUMBER(RowID) 3 from dual 4 where RowNum=1; DBMS_ROWID.ROWID_RELATIVE_FNO(ROWID) DBMS_ROWID.ROWID_BLOCK_NUMBER(ROWID) ------------------------------------ ------------------------------------ 1 2082