SQL> select owner,object_name,objecT_type from dba_objects where objecT_name like 'USER_TABLES%';

OWNER                          OBJECT_NAME                  OBJECT_TYPE
------------------------------ ---------------------------- -------------------
SYS                            USER_TABLES                  VIEW
PUBLIC                         USER_TABLES                  SYNONYM
SYS                            USER_TABLESPACES             VIEW
PUBLIC                         USER_TABLESPACES             SYNONYM

SQL> select owner,object_name,objecT_type from dba_objects where objecT_name like 'ALL_OBJECT%';

OWNER                          OBJECT_NAME                  OBJECT_TYPE
------------------------------ ---------------------------- -------------------
SYS                            ALL_OBJECT_TABLES            VIEW
SYS                            ALL_OBJECTS                  VIEW
PUBLIC                         ALL_OBJECT_TABLES            SYNONYM
PUBLIC                         ALL_OBJECTS                  SYNONYM

SQL> show user
USER is "TEST"
SQL>
SQL> select count(*) from all_tables;

  COUNT(*)
----------
        81

SQL> conn sys/sys as sysdba
Connected.
SQL>
SQL> create view test.all_tables as select * from sys.all_tables where 1=2;

View created.

SQL> conn test/test
Connected.
SQL> select count(*) from all_tables;

  COUNT(*)
----------
         0