drop_command

drop_command 
      ::= 
      drop_cluster 
      | drop_databaselink 
      | drop_index 
      | drop_profile 
      | drop_role 
      | drop_rollback 
      | drop_snapshot 
      | drop_snapshotlog 
      | drop_sequence 
      | drop_synonym 
      | drop_table 
      | drop_tablespace 
      | drop_trigger 
      | drop_user 
      | drop_view 

[rule list]
This rule is called by

to_define_data