SQL>
SQL>
SQL> describe user_objects
Name Null? Type
----------------------------------------------------------------------------------------------------------------- -------- ----------------------------------------------------------------------------
OBJECT_NAME VARCHAR2(128)
SUBOBJECT_NAME VARCHAR2(30)
OBJECT_ID NUMBER
DATA_OBJECT_ID NUMBER
OBJECT_TYPE VARCHAR2(19)
CREATED DATE
LAST_DDL_TIME DATE
TIMESTAMP VARCHAR2(19)
STATUS VARCHAR2(7)
TEMPORARY VARCHAR2(1)
GENERATED VARCHAR2(1)
SECONDARY VARCHAR2(1)
SQL>
SQL> select object_type, object_name
2 from user_objects
3 where rownum < 50
4 order by object_type, object_name;
OBJECT_TYPE OBJECT_NAME
------------------- --------------------------------------------------------------------------------------------------------------------------------
CLUSTER C_COBJ#
CLUSTER C_FILE#_BLOCK#
CLUSTER C_OBJ#
CLUSTER C_TS#
CLUSTER C_USER#
INDEX I_CCOL1
INDEX I_CDEF1
INDEX I_CDEF2
INDEX I_CDEF4
INDEX I_COBJ#
INDEX I_COL2
OBJECT_TYPE OBJECT_NAME
------------------- --------------------------------------------------------------------------------------------------------------------------------
INDEX I_COL3
INDEX I_CON1
INDEX I_CON2
INDEX I_FILE#_BLOCK#
INDEX I_FILE1
INDEX I_FILE2
INDEX I_IND1
INDEX I_OBJ#
INDEX I_OBJ1
INDEX I_OBJ2
INDEX I_OBJ3
OBJECT_TYPE OBJECT_NAME
------------------- --------------------------------------------------------------------------------------------------------------------------------
INDEX I_PROXY_DATA$
INDEX I_PROXY_ROLE_DATA$_1
INDEX I_TAB1
INDEX I_TS#
INDEX I_TS1
INDEX I_UNDO1
INDEX I_UNDO2
INDEX I_USER1
TABLE BOOTSTRAP$
TABLE CCOL$
TABLE CDEF$
OBJECT_TYPE OBJECT_NAME
------------------- --------------------------------------------------------------------------------------------------------------------------------
TABLE CLU$
TABLE COL$
TABLE CON$
TABLE FET$
TABLE FILE$
TABLE ICOL$
TABLE IND$
TABLE OBJ$
TABLE PROXY_DATA$
TABLE PROXY_ROLE_DATA$
TABLE SEG$
OBJECT_TYPE OBJECT_NAME
------------------- --------------------------------------------------------------------------------------------------------------------------------
TABLE TAB$
TABLE TS$
TABLE UET$
TABLE UNDO$
TABLE USER$
49 rows selected.
SQL>
SQL> column object_name format a30;
SQL>
SQL>