Oracle 11gR2 Deferred Segment Creation

Oracle Deferred Segment Creation new feature in Oracle Database 11g Release 2.
Creating a non-partitioned heap-organized table in a locally managed tablespace, the table segment creation is deferred until the first row is inserted. In addition, creation of segments is deferred for any LOB columns of the table, any indexes created implicitly as part of table creation, and any indexes subsequently explicitly created on the table.