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begin 
  EXECUTE IMMEDIATE 'DROP SEQUENCE SEQ_QCNO';
   
  EXECUTE IMMEDIATE 'CREATE SEQUENCE SEQ_QCNO START WITH 1 MAXVALUE 999 MINVALUE 1 CYCLE NOCACHE NOORDER';
end;

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EXECUTE IMMEDIATE 'CREATE SEQUENCE SEQ_QCNO START WITH 1 MAXVALUE 999 MINVALUE 1 CYCLE NOCACHE NOORDER';

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¸Ðл¥ÉÏÁ½Î»£¬ÕÒµ½Ô­ÒòÁË£¬¾ÍÊÇÔÚÖ´ÐÐcreate sequenceÓï¾äʱ£¬Ê×ÏÈÒª¸øµ±Ç°Óû§ÊÚȨ(grant create sequence to username)£¬²»¹ÜÕâ¸öÓû§µ±Ç°ÓÐûÓÐÕâ¸öȨÏÞ£º
  execute immediate 'DROP SEQUENCE SEQ_QCNO';
  execute immediate 'GRANT CREATE ANY SEQUENCE TO sh_aaa';
  execute immediate 'CREATE SEQUENCE SEQ_QCNO START WITH 1 MAXVALUE 999 MINVALUE 1 CYCLE NOCACHE NOORDER';


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