{ column_properties [column_properties]... 
  [( partition_storage_clause [, partition_storage_clause]... ) ]
| modify_LOB_storage_clause [modify_LOB_storage_clause]...
| alter_varray_col_properties [alter_varray_col_properties]...
}

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