CREATE [GLOBAL TEMPORARY] TABLE [schema .] table OF [schema .]object_type 
[ object_table_substitution ]
[( object_properties )] [ON COMMIT { DELETE | PRESERVE } ROWS] 
[OID_clause] [OID_index_clause] [physical_properties] [table_properties];

For information on the symbols and conventions of Backus-Naur Form (BNF) syntax, see Appendix A.