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create table ±íÃû(
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   ×Ö¶ÎÃû2  ×Ö¶ÎÀàÐÍ       ÊÇ·ñΪ¿Õ
);
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alter table ±íÃû add constraint Ö÷¼üÃû primary key (×Ö¶ÎÃû1);
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alter table ±íÃû
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Oracle TO_DATE,to_char

OracleÖÐTO_DATE¸ñʽ
url:http://www.cnblogs.com/ajian/archive/2009/03/25/1421063.html
TO_DATE¸ñʽ(ÒÔʱ¼ä:2007-11-02   13:45:25ΪÀý)
  
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