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SQL> desc all_clusters;
 Name                                      Null?    Type
 ----------------------------------------- -------- ----------------------------
 OWNER                                     NOT NULL VARCHAR2(30)
 CLUSTER_NAME                              NOT NULL VARCHAR2(30)
 TABLESPACE_NAME                           NOT NULL VARCHAR2(30)
 PCT_FREE                                           NUMBER
 PCT_USED                                           NUMBER
 KEY_SIZE                                           NUMBER
 INI_TRANS                                 NOT NULL NUMBER
 MAX_TRANS                                 NOT NULL NUMBER
 INITIAL_EXTENT                                     NUMBER
 NEXT_EXTENT                                        NUMBER
 MIN_EXTENTS                               NOT NULL NUMBER
 MAX_EXTENTS                               NOT NULL NUMBER
 PCT_INCREASE                                       NUMBER
 FREELISTS                                          NUMBER
 FREELIST_GROUPS                                    NUMBER
 AVG_BLOCKS_PER_KEY                                 NUMBER
 CLUSTER_TYPE                                       VARCHAR2(5)
 FUNCTION                                           VARCHAR2(15)
 HASHKEYS                                           NUMBER
 DEGREE                                             VARCHAR2(10)
 INSTANCES                                          VARCHAR2(10)
 CACHE                                              VARCHAR2(5)
 BUFFER_POOL                                        VARCHAR2(7)
 SINGLE_TABLE                                       VARCHAR2(5)
 DEPENDENCIES                                       VARCHAR2(8)
 
SQL>

user_clusters