Hi Team,
SQL> select sum(bytes) from dba_segments where segment_type='TABLE';
SUM(BYTES)
----------
4.8594E+11
SQL> select sum(bytes) from user_segments where segment_type='TABLE';
SUM(BYTES)
----------
1453907968
SQL>
Waht is the difference between above queries.why there is difference in byets for both queries.Please help...