Thanks Kay.
I can query from "all_tables" now.
But when I query the data in "T100", I get table/view does not exist.
***
SQL> select tablespace_name, table_name from all_tables where table_name='T100';
TABLESPACE_NAME TABLE_NAME
------------------------------ ------------------------------
PSAPSR3702 T100
SQL> select rowid from T100;
select rowid from T100
*
ERROR at line 1:
ORA-00942: table or view does not exist
SQL>
***
Thanks,