The only way to define range subpartitions for future interval partitions is with the subpartition template. If you do not use the subpartition template, then the only subpartition that is created for every interval partition is a range subpartition with the MAXVALUE upper boundary. To learn more about how to use a subpartition template, see "Specifying Subpartition Templates to Describe Composite Partitioned Tables".
Example 4-16 shows the sales table, interval partitioned using daily intervals on time_id, with range subpartitions by amount_sold.
Example 4-16 Creating a composite interval-range partitioned table
CREATE TABLE sales
( prod_id NUMBER(6)
, cust_id NUMBER
, time_id DATE
, channel_id CHAR(1)
, promo_id NUMBER(6)
, quantity_sold NUMBER(3)
, amount_sold NUMBER(10,2)
)
PARTITION BY RANGE (time_id) INTERVAL (NUMTODSINTERVAL(1,'DAY'))
SUBPARTITION BY RANGE(amount_sold)
SUBPARTITION TEMPLATE
( SUBPARTITION p_low VALUES LESS THAN (1000)
, SUBPARTITION p_medium VALUES LESS THAN (4000)
, SUBPARTITION p_high VALUES LESS THAN (8000)
, SUBPARTITION p_ultimate VALUES LESS THAN (maxvalue)
)
(PARTITION before_2000 VALUES LESS THAN (TO_DATE('01-JAN-2000','dd-MON-yyyy'))
)
PARALLEL;