Example - Adding a partition to a RANGE partitioned table v15
This example adds a partition to a range-partitioned table named sales
:
CREATE TABLE sales ( dept_no number, part_no varchar2, country varchar2(20), date date, amount number ) PARTITION BY RANGE(date) ( PARTITION q1_2012 VALUES LESS THAN('2012-Apr-01'), PARTITION q2_2012 VALUES LESS THAN('2012-Jul-01'), PARTITION q3_2012 VALUES LESS THAN('2012-Oct-01'), PARTITION q4_2012 VALUES LESS THAN('2013-Jan-01') );
The table contains the four partitions q1_2012
, q2_2012
, q3_2012
, and q4_2012
:
edb=# SELECT partition_name, high_value FROM ALL_TAB_PARTITIONS;
Output
partition_name | high_value ----------------+---------------------- Q1_2012 | '01-APR-12 00:00:00' Q2_2012 | '01-JUL-12 00:00:00' Q3_2012 | '01-OCT-12 00:00:00' Q4_2012 | '01-JAN-13 00:00:00' (4 rows)
This command adds a partition named q1_2013
to the sales
table:
ALTER TABLE sales ADD PARTITION q1_2013 VALUES LESS THAN('01-APR-2013');
After the command is invoked, the table includes the q1_2013
partition:
edb=# SELECT partition_name, high_value FROM ALL_TAB_PARTITIONS;
Output
partition_name | high_value ----------------+---------------------- Q1_2012 | '01-APR-12 00:00:00' Q2_2012 | '01-JUL-12 00:00:00' Q3_2012 | '01-OCT-12 00:00:00' Q4_2012 | '01-JAN-13 00:00:00' Q1_2013 | '01-APR-13 00:00:00' (5 rows)