生成某个用户下的脚本文件  

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 dba_sequences where sequence_owner='XX'