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¸ÃÎÊÌâÀ´×ÔÂÛ̳ÌáÎÊ£¬ÑÝʾSQL´úÂëÈçÏÂ
--½¨Á¢²âÊÔ»·¾³
set nocount on
create table test(ID varchar(20),NAME varchar(20))
insert into test select '1','aaa'
insert into test select '1','bbb'
insert into test select '1','ccc'
insert into test select '2','ddd'
insert into test select '2','eee'
go
--²âÊÔ
select *from (select distinct id from test)a
OUTER APPLY(
select value=''+(
select name from test path
where id = A.id
for xml auto)+'') b
--ɾ³ý²âÊÔ»·¾³
drop table test
set nocount off
/*--½á¹û
id value
-------------------- --------------------------------------------------------------------
1
2
*/
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DataSet(DataTable)ÓëXML»¥×ª

using System;
using System.Data;
using System.IO;
using System.Xml;
using System.Text;
// ÏàÓ¦C#´úÂ룺
private string ConvertDataTableToXML(DataTable xmlDS)
{
MemoryStream stream = null;
XmlTextWriter writer = null;
try
{
stream = new MemoryStream();
writer = new XmlTextWriter(stream, E ......

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XML ºÍ JSON Êǵ±½ñ³£ÓõÄÁ½ÖÖÊý¾ÝÃèÊöÓë´«ÊäµÄ¸ñʽ£¬ÌرðÊÇÉæ¼°µ½ JS ʱʹÓà JSON ÆÄΪƵ·±¡£×ÔÈ»£¬ÔÚ Java  µÄÊÀ½çÀïÉÙ²»ÁËÍê³É JavaBean ÓëÕâÁ½ÖÖ¸ñʽÏ໥ת»»µÄ×é¼þ£¬ÄǾÍÊÇ XStream ºÍ JSON-lib¡£ÕâÀïÎÒ¼òµ¥¼ÇÏ XStream  µÄÓ÷¨¡£
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SQL 2005 ASP.NETÊý¾Ý¿âÁ¬½Ó×ܽá

 
VS2005+SQL2005 ASP.NET2.0Êý¾Ý¿âÁ¬½Ó×ܽá
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SQL_²éѯµ±Ìì¡¢½ü¼¸Ìì¡¢±¾ÖÜ¡¢±¾ÔµÄSQLÓï¾ä

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--µ±Ìì
(usrRegTime >=CONVERT(varchar(10),getDate(),120)+' 00:00:00' and usrRegTime <=CONVERT(varchar (10),getDate(),120)+' 23:59:59')
--½üÈýÌì
DateDiff(day,usrRegTime,getdate()) <=3
--±¾ÖÜ ......

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CREATE TABLE [dbo].[categories](
......
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