根据年:  INTERVAL(NUMTOYMINTERVAL(1,'YEAR'))

   根据天:  INTERVAL(NUMTODSINTERVAL(1,'DAY'))

   根据时分秒: NUMTODSINTERVAL( n, { 'DAY'|'HOUR'|'MINUTE'|'SECOND'})

  下面用按月自动扩展来做个试验：

-- Create table
create table T_ZXJC_JCSJ_FQ_SSJ_JCZ_PART
(
  xh       VARCHAR2(50) not null,
  xtxh     VARCHAR2(50),
  wrwbh    VARCHAR2(200),
  zxjcz    NUMBER(18,6),
  pjjcz    NUMBER(18,6),
  zdjcz    NUMBER(18,6),
  jcz      NUMBER(18,6),
  xyz      NUMBER(18,6),
  zsz      NUMBER(18,6),
  xyzsz    NUMBER(18,6),
  wrwpfl   NUMBER(18,6),
  xywrwpfl NUMBER(18,6),
  sjly     VARCHAR2(50),
  sjzt     VARCHAR2(50),
  zt       VARCHAR2(50),
  bzxh     VARCHAR2(50),
  orgid    VARCHAR2(50),
  cjr      VARCHAR2(50),
  cjsj     DATE,
  xgr      VARCHAR2(50),
  xgsj     DATE
)
partition by range (cjsj) interval (numtoyMinterval (3,'MONTH'))
(
  partition p_2016_01 values less than (to_date('2016-04-01', 'yyyy-mm-dd'))
);

select TABLE_NAME, PARTITIONING_TYPE, PARTITION_COUNT, STATUS
  from dba_part_tables
 where TABLE_NAME = 'T_ZXJC_JCSJ_FQ_SSJ_JCZ_PART';

select PARTITION_NAME, NUM_ROWS, TABLESPACE_NAME, SEGMENT_CREATED
  from dba_tab_partitions
 where TABLE_NAME = 'T_ZXJC_JCSJ_FQ_SSJ_JCZ_PART';

select * from T_ZXJC_JCSJ_FQ_SSJ_JCZ_PART partition(P_2016_01) ORDER BY CJSJ DESC
select MAX(CJSJ),MIN(CJSJ) from T_ZXJC_JCSJ_FQ_SSJ_JCZ_PART partition(SYS_P21) ORDER BY CJSJ DESC
select MAX(CJSJ),MIN(CJSJ) from T_ZXJC_JCSJ_FQ_SSJ_JCZ_PART partition(SYS_P22) ORDER BY CJSJ DESC
select MAX(CJSJ),MIN(CJSJ) from T_ZXJC_JCSJ_FQ_SSJ_JCZ_PART partition(SYS_P23) ORDER BY CJSJ DESC
select MAX(CJSJ),MIN(CJSJ) from T_ZXJC_JCSJ_FQ_SSJ_JCZ_PART partition(SYS_P24) ORDER BY CJSJ DESC

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