抽取sequence的创建语句

select  'create sequence ' ||sequence_name||   
        ' minvalue ' ||min_value||   
        ' maxvalue ' ||max_value||   
        ' start with ' ||last_number||   
        ' increment by ' ||increment_by||   
       ( case  when cache_size= 0  then  ' nocache'   else   ' cache ' ||cache_size end) || ';'   
from user_sequences;