Hi I have dumped a block and trying to see the data it contains, for the varchar2 it's quite simple we simply convert hex to ascii but for number I cant find a suitable way, does anyone know how to convert this data? select dbms_rowid.rowid_to_absolute_fno(rowid, 'SCOTT', 'EMP') ABS_FNO, dbms_rowid.rowid_relative_fno(rowid) REL_FNO, dbms_rowid.rowid_block_number(rowid) BLOCKNO, dbms_rowid.rowid_row_number(rowid) ROWNO, empno, ename from emp where empno = 7369 ABS_FNO REL_FNO BLOCKNO ROWNO EMPNO ENAME ---------- ---------- ---------- ---------- ---------- ---------- 8 8 10 0 7369 SMITH so I dump block 10 and check for row 0 and got this: tab 0, row 0, @0xb94 tl: 38 fb: --H-FL-- lb: 0x0 cc: 8 col 0: [ 3] c2 4a 46 --> EMPNO col 1: [ 5] 53 4d 49 54 48 --> ENAME col 2: [ 5] 43 4c 45 52 4b col 3: [ 3] c2 50 03 col 4: [ 7] 77 b4 0c 11 01 01 01 col 5: [ 2] c2 09 col 6: *NULL* col 7: [ 2] c1 15 so converting 53 4d 49 54 48 to ascii we got SMITH but to get the EMPNO (7369) using c2 4a 46 ? TIA Alex