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 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) ||';'  //Õâ¸öÊÇʵʱµÄSequence
from user_sequences
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SELECT DBMS_METADATA.GET_DDL(U.OBJECT_TYPE, u.object_name)
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