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 * ¹¦ÄÜ˵Ã÷:±¸·ÝºÍ»Ö¸´SQL ServerÊý¾Ý¿â
 * ×÷Õß: Áõ¹¦Ñ«;
 * °æ±¾:V0.1(C#2.0);ʱ¼ä:2007-1-1
 * µ±Ê¹ÓÃSQL Serverʱ,ÇëÒýÓà COM×é¼þÖеÄ,SQLDMO.dll×é¼þ
 * µ±Ê¹ÓÃAccessÖÐ,Çëä¯ÀÀÌí¼ÓÒýÓÃÒÔÏÂÁ½¸ödll
 *          ÒýÓÃC:/Program Files/Common Files/System/ado/msadox.dll,¸ÃDLL°üº¬ADOXÃüÃû¿Õ¼ä
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using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.IO;
using ADOX;//¸ÃÃüÃû¿Õ¼ä°üº¬´´½¨ACCESSµÄÀà(·½·¨)--½â¾ö·½°¸ ==> ÒýÓà ==> Ìí¼ÓÒýÓà ==> ÓÎÀÀÕÒµ½.dll
using JRO;//¸ÃÃüÃû¿Õ¼ä°üº¬Ñ¹ËõACCESSµÄÀà(·½·¨)
namespace EC
{
    /// <summary>
    /// Êý¾Ý¿â»Ö¸´ºÍ±¸·Ý
    /// </summary>
    public class SqlBackObject
    {
        public SqlBackObject()
        {
            //
            // TODO: ÔÚ´Ë´¦Ìí¼Ó¹¹Ô캯ÊýÂß¼­
            //
        }
        #region SQLÊý¾Ý¿â±¸·Ý
       /// <summary>
        /// SQLÊý¾Ý¿â±¸·Ý
       /// </summary>
       /// <param name="ServerIP">SQL·þÎñÆ÷IP»ò(Localhost)</param>
    


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use pubs
go
select avg(distinct price)  --ËãÆ½¾ùÊý
from titles
where type='business'
go 
use pubs
go
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insert into test values(1,'a',1,1000)
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insert into test values(1,'a',3,4000)
insert into test values(1,'a',4,5000)
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select round(748.585929,-1) 750.000000
select round(748.58592 ......

SQLÓï¾ä£ºGroup By Óï¾äС½á

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