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using System.Data.OracleClient;//ÒýÈëoracle²Ù×÷°ü
 
//¶¨ÒåDMLÓï¾ä
string strSQL = @"select user.name from user where user.name = :userName";
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OracleParameter[] param = {
new OracleParameter(":userName",txtName);
}//ÕâÀﶨÒåÒ»¸ö²ÎÊýµÄÊý×飬ÀïÃæ¿ÉÒÔдÈë¶à¸ösql²ÎÊý£¬ÔÛÃǵÄÕâÀïÖ»ÓÐÒ»¸ö£¬ËùÒÔ¾ÍдÈëÒ»¸ö²ÎÊý£¬ÕâÀイռλ·ûºÍËûµÄÌæ»»Ò²¾ÍÊDzÎÊýÖµ¶ÔÓ¦ÆðÀ´ÁË£¬txtName¾ÍÊÇռλ·ûµÄÌæ»»Öµ£¬ËûÊÇÓû§½çÃæÖÐÓû§ÊäÈëµÄÖµ£¬¾ÍÊÇËû¿ÉÄܺ¬ÓÐ×¢Èë¹¥»÷µÄ×Ö·û£¬ÕâÏÂÊý¾Ý¿â·þÎñÆ÷ÖªµÀÓÃʲô¶«Î÷Ìæ»»Õ¼Î»·ûÁË¡£
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    OracleCommand cmd = new OracleCommand();
     cmd.CommandText = strSQL;//¶¨ÒåoracleÃüÁîµÄÎı¾ÄÚÈÝ
      for(oracleParameter p in param)//½«²ÎÊý´«Èë
{
cmd.Parameters.Add(p);
}
     cmd.ExecuteNonQuery(); //Ö´ÐÐÃüÁî
 
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