n

n 
      ::= "digit" { "digit" } 

[rule list]
This rule is call by

allocate_spec alter_cluster_spec alter_cost alter_database alter_index_spec alter_sequence_spec alter_system alter_user_spec analyze_spec archive_log_spec binary_type character_type controlfile_spec create_cluster_spec create_database_spec create_sequence_spec create_user_spec decimal_type file_spec_redo file_spec group_file_spec group_file index_storage integer_type logfile_clause number profile_spec sorted_def storage_parameter storage_spec system_spec transaction_command until_spec value