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c# ²Ù×÷excel

 OleDbConnection conn = null;
            try
            {
               `string strConn;
                strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" +
                    "Data Source="+path+";"+
                "Extended Properties='Excel 8.0;'";
                conn = new OleDbConnection(strConn);
                conn.Open();
                string Sql = "select * from [list$]";
                System.Data.OleDb.OleDbCommand cmd = new System.Data.OleDb.OleDbCommand();
                OleDbDataAdapter ddp = new OleDbDataAdapter(Sql, conn);
                DataSet ds = new DataSet();
                ddp.Fill(ds);
                //cmd.Connection = conn;
                 //ÔÚExcelµÄSheet1µÄA3µ½H3´¦²åÈëÊý¾Ý
                //cmd.CommandText = "insert into [Sheet1$A3:H3] (F1,F2,F3,


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C#.NET·ÀÖ¹SQL×¢Èëʽ¹¥»÷

1  ·ÀÖ¹sql×¢Èëʽ¹¥»÷(¿ÉÓÃÓÚUI²ã¿ØÖÆ£© #region  ·ÀÖ¹sql×¢Èëʽ¹¥»÷(¿ÉÓÃÓÚUI²ã¿ØÖÆ£©
  2 
  3   /**/ /// 
  4  ///  ÅжÏ×Ö·û´®ÖÐÊÇ·ñÓÐSQL¹¥»÷´úÂë
  5  /// 
  6  ///  ´«ÈëÓû§Ìá½»Êý¾Ý
  7  ///  ......

ÈçºÎ¼ÆËãMS SQLÓï¾äÖ´ÐеÄʱ¼ä»¹ÓÐc#


MSSQL:
declare @begin datetime
declare @End datetime
set @begin=getdate()
   --Ö´ÐеÄÓï¾äдÔÚÕâÀï
set @End=getdate()
select datediff(millisecond,@begin,@End) as Ö´ÐеÄʱ¼ä
--millisecond±íʾºÁÃë Èç¹û¿´Ãë¿ÉÒÔʹÓÃss
C#:
ºÜ¶àʱº ......

c#xmlµÄÔöɾ¸Ä²é


ÒÑÖªÓÐÒ»¸öXMLÎļþ£¨bookstore.xml£©ÈçÏ£º  
  <?xml   version="1.0"   encoding="gb2312"?>  
  <bookstore>  
      <book   genre="fantasy"   ISBN="2-3631-4">  
       &n ......

C# ¸ñʽ»¯Êä³öXML

ºÜ¶àʱºòÓÐÒ»¸öxml×Ö·û´®£¬Ã»Óл»ÐУ¬Ã»ÓÐËõ½ø£¬ÒªÉú³ÉxmlÎļþ²»Ò×ÔĶÁ¡£ÏÂÃæµÄ´úÂë¾ÍÊÇÔõô½«Ò»¸öÁ¬ÐøµÄxml×Ö·û´®¸ñʽ»¯Êä³ö
// a demo string
string xml = "<Root><Eles><Ele>abc</Ele><Ele>123</Ele></Eles></Root>";
System.Xml.XmlDocument doc = new System.Xml ......

C#ʹÓÃSQLDMOʵÏÖ¶ÔMSSQLÊý¾Ý¿â½øÐб¸·ÝºÍ»Ö¸´

public sealed class DbOper
{
     ///<summary>
     /// DbOperÀàµÄ¹¹Ô캯Êý
     ///</summary>
     private DbOper()
     {
     }
     ......
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