oracle sql修改序列为当前序列开始

declare
  v_num integer;
  last_value integer;
Begin
  select SEQ_TBM_ID.NEXTVAL into last_value from dual;
  Select max(tbm.tbm_id) into v_num From terminal_bak_manamge tbm;
  loop
     Select Seq_Tbm_Id.Currval into last_value From dual;
     exit when last_value>= v_num;
     Select Seq_Tbm_Id.Nextval into last_value From dual;
  end loop;
end;
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