Oracle 11g下用模板建复合分区

   利用模板建复合分区大大的降低了脚本的复杂度，下面来做个试验：

--未使用模板的方法建复合分区

SQL> drop table test purge;

SQL> create table test

  (

   owner VARCHAR2(10),

   created date,

   object_name VARCHAR2(10),

   object_type VARCHAR2(20)

  )

  partition by range(created) subpartition by list(owner)

  (

    partition p_1 values less than(to_date('2012-01-01','yyyy-mm-dd'))

    (

     subpartition p_1_sub1 values('sys'),

     subpartition p_1_sub3 values('system'),

     subpartition p_1_sub5 values('test'),

     subpartition p_1_sub7 values('hr')

    ),

    partition p_2 values less than(to_date('2013-01-01','yyyy-mm-dd'))

    (

     subpartition p_2_sub1 values('sys'),

     subpartition p_2_sub3 values('system'),

     subpartition p_2_sub5 values('test'),

     subpartition p_2_sub7 values('hr')

    ),

    partition p_3 values less than(to_date('2014-01-01','yyyy-mm-dd'))

    (

     subpartition p_3_sub1 values('sys'),

     subpartition p_3_sub3 values('system'),

     subpartition p_3_sub5 values('test'),

     subpartition p_3_sub7 values('hr')

    ),

    partition p_other values less than(maxvalue)

    (

     subpartition p_other_sub1 values('sys'),

     subpartition p_other_sub3 values('system'),

     subpartition p_other_sub5 values('test'),

     subpartition p_other1_sub7 values('hr')

    )

  );

SQL> select s.partition_name

      from user_tab_partitions s

     where s.table_name = 'TEST';

PARTITION_NAME

------------------------------

P_1

P_2

P_3

P_OTHER

SQL> col PARTITION_NAME  format a10

SQL> select s.partition_name, s.subpartition_name

      from user_tab_subpartitions s

     where s.table_name = 'TEST';

PARTITION_ SUBPARTITION_NAME

---------- ------------------------------

P_1        P_1_SUB1

P_1        P_1_SUB3

P_1        P_1_SUB5

P_1        P_1_SUB7

P_2        P_2_SUB1

P_2        P_2_SUB3

P_2        P_2_SUB5

P_2        P_2_SUB7

P_3        P_3_SUB1

P_3        P_3_SUB3

P_3        P_3_SUB5

P_3        P_3_SUB7

P_OTHER    P_OTHER_SUB1

P_OTHER    P_OTHER_SUB3

P_OTHER    P_OTHER_SUB5

P_OTHER    P_OTHER1_SUB7

--使用模板的方法建复合分区

SQL> drop table test purge;

SQL> create table test

   (

    owner VARCHAR2(10),

    created date,

    object_name VARCHAR2(10),

    object_type VARCHAR2(20)

   )

   partition by range(created) subpartition by list(owner)
   subpartition template

   (

    subpartition sub1 values('sys'),

    subpartition sub3 values('system'),

    subpartition sub5 values('test'),

    subpartition sub7 values('hr')

   )

   (

     partition p_1 values less than(to_date('2012-01-01','yyyy-mm-dd')),

     partition p_2 values less than(to_date('2013-01-01','yyyy-mm-dd')),

     partition p_3 values less than(to_date('2014-01-01','yyyy-mm-dd')),

     partition p_other values less than(maxvalue)

   );

SQL> select s.partition_name

      from user_tab_partitions s

     where s.table_name = 'TEST';

PARTITION_

----------

P_1

P_2

P_3

P_OTHER

SQL> select s.partition_name, s.subpartition_name

      from user_tab_subpartitions s

     where s.table_name = 'TEST';

PARTITION_ SUBPARTITION_NAME

---------- ------------------------------

P_1        P_1_SUB1

P_1        P_1_SUB3

P_1        P_1_SUB5

P_1        P_1_SUB7

P_2        P_2_SUB1

P_2        P_2_SUB3

P_2        P_2_SUB5

P_2        P_2_SUB7

P_3        P_3_SUB1

P_3        P_3_SUB3

P_3        P_3_SUB5

P_3        P_3_SUB7

P_OTHER    P_OTHER_SUB1

P_OTHER    P_OTHER_SUB3

P_OTHER    P_OTHER_SUB5

P_OTHER    P_OTHER_SUB7