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C# code:

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private static string connString = "Provider=Microsoft.Jet.OLEDB.4.0;;Data Source=DataBase.mdb";//DataBase.mdbÊý¾Ý¿âÎļþÃû



http://www.connectionstrings.com


DataBase.mdbÊÇÊý¾Ý¿âµÄÎļþÃû£¬µ«ÊÇÎÒÏëµÃÖªµÀÊý¾Ý¿âÎļþµÄ´æ·Å·¾¶²Å¿ÉÒÔ£¬µ«ÊÇÔÚÉÏÃæµÄÓï¾äÖÐûÓÐÖ¸Ã÷·¾¶£¬ÄܽâÊÍÏÂÂð£¿

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<add name="connectionString" connectionString="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=|DataDirectory|web.mdb;Persist Security Info=True" providerName="System.Data.OleDb"/>

Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|*.mdb;
¡°*¡±ÊÇÄãÊý¾Ý¿âµÄÃüÃû£¬°ÑÕâ¾ä»°·ÅÔÚWeb.configµÄ<appSettings>ÀïÃæ
<appSettings>
  <add key="conn" value="Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|*.mdb;">
</appSettings>



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<A>
      <B>
        <C>
        </C>
  &nb ......

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ÕâÑù¿ª·¢µÄC/SÈí¼þËãÇÖȨÂ𣿠- .NET¼¼Êõ / C#

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ACCESSÈ¥³ýÖØ¸´Öµ - ÆäËûÊý¾Ý¿â¿ª·¢ / Access

oracle ´úÂ룺
select * from (select * row_number() over ( partition by ÁªÏµºÅÂë order by ÒµÎñºÅÂë ) rn from ºÅÂë²éѯ) where rn<2
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ÏÂÃæÊÇ´úÂ룺string sql = "";
  Óû§ user = new Óû§();
  user.Name = textBox1.Text;
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