select segment_name, segment_type from user_segments : user_segments « System Tables Data Dictionary « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial » System Tables Data Dictionary » user_segments 
30. 95. 2. select segment_name, segment_type from user_segments
SQL>
SQL> select segment_name, segment_type from user_segments;

SEGMENT_NAME
--------------------------------------------------------------------------------
SEGMENT_TYPE
------------------
DEPT$AUDIT
TABLE

P1
TABLE

MYSTATS
TABLE

IT
TABLE

DEMO
TABLE

CUST_NO_KEY_TABLE
TABLE

SEGMENT_NAME
--------------------------------------------------------------------------------
SEGMENT_TYPE
------------------

PASSWORD_AUDIT
TABLE

CUSTLOG
TABLE

EMP_DELTAS
TABLE

INVENTORY_TBL
TABLE

P
TABLE

MYTABLE1

SEGMENT_NAME
--------------------------------------------------------------------------------
SEGMENT_TYPE
------------------
TABLE

SYSTEM_STATS
TABLE

HD_CLUSTER
CLUSTER

SYS_C005096
INDEX

MYSTATS
INDEX

SYS_C005376
INDEX


SEGMENT_NAME
--------------------------------------------------------------------------------
SEGMENT_TYPE
------------------
SYS_C005536
INDEX

SYS_C005404
INDEX

SYS_IOT_TOP_16135
INDEX

SYS_C006948
INDEX

HD_CLUSTER_INDEX
INDEX

SYS_C0010267
INDEX

SEGMENT_NAME
--------------------------------------------------------------------------------
SEGMENT_TYPE
------------------

SYS_C009993
INDEX

SYSTEM_STATS
INDEX


25 rows selected.

SQL>
SQL> create table t int primary key, y clob, z blob );

Table created.

SQL>
SQL> select segment_name, segment_type from user_segments;

SEGMENT_NAME
--------------------------------------------------------------------------------
SEGMENT_TYPE
------------------
DEPT$AUDIT
TABLE

P1
TABLE

MYSTATS
TABLE

IT
TABLE

DEMO
TABLE

CUST_NO_KEY_TABLE
TABLE

SEGMENT_NAME
--------------------------------------------------------------------------------
SEGMENT_TYPE
------------------

PASSWORD_AUDIT
TABLE

CUSTLOG
TABLE

EMP_DELTAS
TABLE

INVENTORY_TBL
TABLE

P
TABLE

MYTABLE1

SEGMENT_NAME
--------------------------------------------------------------------------------
SEGMENT_TYPE
------------------
TABLE

T
TABLE

SYSTEM_STATS
TABLE

HD_CLUSTER
CLUSTER

SYS_C005096
INDEX

MYSTATS
INDEX


SEGMENT_NAME
--------------------------------------------------------------------------------
SEGMENT_TYPE
------------------
SYS_C005376
INDEX

SYS_C005536
INDEX

SYS_C005404
INDEX

SYS_IOT_TOP_16135
INDEX

SYS_C006948
INDEX

HD_CLUSTER_INDEX
INDEX

SEGMENT_NAME
--------------------------------------------------------------------------------
SEGMENT_TYPE
------------------

SYS_C0010267
INDEX

SYS_C009993
INDEX

SYS_IL0000021357C00002$$
LOBINDEX

SYS_IL0000021357C00003$$
LOBINDEX

SYS_C0010294
INDEX

SYSTEM_STATS

SEGMENT_NAME
--------------------------------------------------------------------------------
SEGMENT_TYPE
------------------
INDEX

SYS_LOB0000021357C00002$$
LOBSEGMENT

SYS_LOB0000021357C00003$$
LOBSEGMENT


31 rows selected.

SQL>
SQL> drop table t;

Table dropped.

SQL>
30. 95. user_segments
30. 95. 1. Get invalid table objects
30. 95. 2. select segment_name, segment_type from user_segments
30. 95. 3. select * from DBA_SEGMENTS where Segment_Type = 'ROLLBACK'
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