DBA_TABLESPACES

SQL>DESC DBA_TABLESPACES

 Name                                                  Null?                    Type

 -----------------------------------------     -----------------   -------------------------- TABLESPACE_NAME                  NOT NULL          VARCHAR2(30)
 BLOCK_SIZE                                NOT NULL           NUMBER
 INITIAL_EXTENT                                                        NUMBER
 NEXT_EXTENT                                                             NUMBER
 MIN_EXTENTS                             NOT NULL            NUMBER
 MAX_EXTENTS                                                             NUMBER
 MAX_SIZE                                                                    NUMBER
 PCT_INCREASE                                                             NUMBER
 MIN_EXTLEN                                                                 NUMBER
 STATUS                                                                         VARCHAR2(9)
 CONTENTS                                                                   VARCHAR2(9)
 LOGGING                                                                     VARCHAR2(9)
 FORCE_LOGGING                                                        VARCHAR2(3)
 EXTENT_MANAGEMENT                                           VARCHAR2(10)
 ALLOCATION_TYPE                                                  VARCHAR2(9)
 PLUGGED_IN                                                                VARCHAR2(3)
 SEGMENT_SPACE_MANAGEMENT                         VARCHAR2(6)
 DEF_TAB_COMPRESSION                                          VARCHAR2(8)
 RETENTION                                                                  VARCHAR2(11)
 BIGFILE                                                                       VARCHAR2(3)
 PREDICATE_EVALUATION                                      VARCHAR2(7)
 ENCRYPTED                                                                 VARCHAR2(3)
 COMPRESS_FOR                                                           VARCHAR2(18)