(1). Extend the tablespace currently beign used by the objects (Schema).
To extend you should need the dba priveleges. Even if you are granted the neccessary privileges , you may have to bounce the db to reflect your changes.
(2) As a developer you may try this.
(a). Find out the autoextendable tablespaces
SELECT TABLESPACE_NAME
FROM DBA_DATA_FILES
WHERE autoextensible='YES';
(b) Apply the table space in the create table syntax
create table test TABLESPACE
as
select *
from all_objects;