I think you're talking about a partitioned table. It is defined like this:
CREATE TABLE TABLE_IN_TBS
(
SomeColumns....
)
PARTITION BY (your_date_column)
(STARTING FROM '2013-09-30' ENDING AT '2013-09-30' IN TABLESPACE TBS_1),
(STARTING FROM '2013-10-01' ENDING AT '2013-10-01' IN TABLESPACE TBS_2),
...;