Oracle Database 11 g - Online Public Access Catalog

CHAPTER 12 ■ DATA WAREHOUSING 55514 partition by range (creation_date)15 subpartition by range (closed_date)16 ( partition p_Q1_2007 values17 less than (to_date('01-APR-2007','dd-MON-yyyy'))18 ( subpartition p_JAN2007 values19 less than (to_date('01-FEB-2007','dd-MON-yyyy'))20 , subpartition p_FEB2007 values21 less than (to_date('01-MAR-2007','dd-MON-yyyy'))22 , subpartition p_MAR2007 values23 less than (to_date('01-APR-2007','dd-MON-yyyy'))24 , subpartition p_PRE_Q1_2007 values less than (maxvalue)25 )26 , partition p_Q2_2007 values27 less than (to_date('01-JUL-2007','dd-MON-yyyy'))28 ( subpartition p_APR2007 values29 less than (to_date('01-MAY-2007','dd-MON-yyyy'))30 , subpartition p_MAY2007 values31 less than (to_date('01-JUN-2007','dd-MON-yyyy'))32 , subpartition p_JUN2007 values33 less than (to_date('01-JUL-2007','dd-MON-yyyy'))34 , subpartition p_PRE_Q2_2007 values less than (maxvalue)35 )36* )SQL> /Table created.Once the range-range partition is created, let’s insert two rows into the February subpartition:insert into alerts_range_rangevalues (1,'Critical Alert for DBATOOLS Database: Tablepsace threshold exceeded','rac11.dbaexpert.com', 'DBATOOLS', 1, 1000,'Resolve space issue on the alert_d tablespace: 98% utilized','01-FEB-07', user, sysdate, user, '10-FEB-2007');insert into alerts_range_rangevalues (8,'Critical Alert for ASMDB Database: Tablepsace threshold exceeded','rac71.dbaexpert.com', 'ASMDB', 1, 1000,'Resolve space issue on the sales_d tablespace: 91% utilized','01-FEB-07', user, sysdate, user, '10-FEB-2007');By querying directly against the subpartition, you can verify that range-range compositepartitioning is working as advertised: