oracle - 在 SUBPARTITION 中使用 INTERVAL (NUMTOYMINTERVAL (1 ,'MONTH')

Question

我正在尝试将分区添加到我创建的表中。我希望它按“PARTITION GRP”分区并按月进行分区。但我不知道如何在子分区内编写 INTERVAL 子句。 有人可以帮我吗？谢谢!

PARTITION BY RANGE (PARTITION_GRP)
SUBPARTITION BY RANGE (RPTG_MTH_DATE)
INTERVAL(NUMTOYMINTERVAL(1,'MONTH'))
(
   PARTITION PG_0 VALUES LESS THAN (1)
  (SUBPARTITION PG_0_201401 VALUES LESS THAN (TO_DATE('1-FEB-2014', 'DD-MON-YYYY'))),
   PARTITION PG_1 VALUES LESS THAN (2)
  (SUBPARTITION PG_1_201401 VALUES LESS THAN (TO_DATE('1-FEB-2014', 'DD-MON-YYYY'))),   
   PARTITION PG_2 VALUES LESS THAN (3)
  (SUBPARTITION PG_2_201401 VALUES LESS THAN (TO_DATE('1-FEB-2014', 'DD-MON-YYYY'))),
   PARTITION PG_3 VALUES LESS THAN (4)
  (SUBPARTITION PG_3_201401 VALUES LESS THAN (TO_DATE('1-FEB-2014', 'DD-MON-YYYY'))),
   PARTITION PG_4 VALUES LESS THAN (MAXVALUE)
  (SUBPARTITION PG_4_201401 VALUES LESS THAN (TO_DATE('1-FEB-2014', 'DD-MON-YYYY')))
 ) 

Answer 1

来自 the documentation :

Restrictions on Interval Partitioning
The INTERVAL clause is subject to the following restrictions:

• You can specify only one partitioning key column, and it must be of NUMBER or DATE type.
• This clause is not supported for index-organized tables.
• You cannot create a domain index on an interval-partitioned table.
• Interval partitioning is not supported at the subpartition level. ...

所以你不能有间隔子分区。