The following example adds a single-column partition using system-determined COLUMN format and autocompression to the orders table.
ALTER TABLE orders ADD (o_salesperson VARCHAR(5));
The following equivalent request performs the same actions to alter the table.
ALTER TABLE orders ADD o_salesperson VARCHAR(5);
Both requests alter the orders table to have the following definition with o_salesperson set to NULL in each row of the table.
CREATE TABLE orders ( o_orderkey INTEGER NOT NULL, o_custkey INTEGER, o_orderstatus CHARACTER(1) CASESPECIFIC, o_totalprice DECIMAL(13,2) NOT NULL, o_ordertsz TIMESTAMP(6) WITH TIME ZONE NOT NULL, o_comment VARCHAR(79), o_salesperson VARCHAR(5) ) PARTITION BY (COLUMN ADD 4, RANGE_N(o_ordertsz BETWEEN TIMESTAMP '2003-01-01 00:00:00.000000+00:00' AND TIMESTAMP '2009-12-31 23:59:59.999999+00:00' EACH INTERVAL '1' MONTH) ), UNIQUE INDEX(o_orderkey);