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    24Сʱ£º·ÖÖÓ£ºÃëµÄ¸ñʽ  'YYYY-MM-DD HH24:MI:SS'  
  
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    24Сʱ£º·ÖÖÓ£ºÃëµÄ¸ñʽ  'YYYY-MM-DD HH24:MI:SS'  
  
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day spelled out friday  
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mm number 03  
mon abbreviated mar  
month spelled out march  
Year:  
yy two digits 98  
yyyy four digits 1998  
24Сʱ¸ñʽÏÂʱ¼ä·¶Î§Îª£º 0:00:00 - 23:59:59....  
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create user OSUSER identified by OSUSER;//identified by ºóÃæµÄÊÇÃÜÂ룬ǰÃæµÄÊÇÓû§Ãû
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grant resource,connect,RECOVERY_CATALOG_OWNER to OSUSER ;
grant create table to OSUSER ;
alter user OSUSER quota unlimited ON OSDB;
alter user OSUSER default tablespace OSDB;
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DROP TABLESPACE TableSpaceName INCLUDING CONTENTS AND DATAFILES;
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