Description of image file

{ [ deferred_segment_creation ] segment_attributes_clause [ table_compression ]
 [ inmemory_table_clause ] [ ilm_clause ] 
| [ deferred_segment_creation ] ORGANIZATION
 { HEAP [ segment_attributes_clause ] heap_org_table_clause 
 | INDEX [ segment_attributes_clause ] index_org_table_clause
 | EXTERNAL external_table_clause
 }
| CLUSTER cluster (column [, column ]...)
}