asp.net´Ósql server2005ÖвéѯÊý¾Ý
Ê×ÏÈÒªÌí¼Ó
using System.Data;
using System.Data.SqlClient;
½ÓÏÂÀ´£º
SqlConnection conn = new SqlConnection("server=QLPC\\SQL2005;uid=sa;pwd=£¨ÄãµÄÃÜÂ룩;database=£¨ÄãµÄÊý¾Ý±í£©"); //ÓÃÓÚÁ¬½ÓÊý¾Ý¿â
conn.Open(); //´ò¿ªÊý¾Ý¿â
SqlCommand cmd = new SqlCommand("select * from [user]", conn); //Ï൱ÓÚÖ´ÐÐÊý¾ÝÓï¾ä°É
SqlDataReader read = cmd.ExecuteReader(); //´´½¨Ò»¸öSqlDataReaderµÄreadÏó
while (read.Read()) //µ±¶ÁÈ¡µÄÊý¾Ý´æÔÚʱÔòд³öÀ´
{
Response.Write(read[0]);
}
conn.close(); //¹Ø±ÕÊý¾Ý¿âµÄÁ´½Ó
Ïà¹ØÎĵµ£º
ÒÔǰһֱ¾õµÃlinq to sqlÉú³ÉÀàËÆwhere id not in (1,3,5)»òwhere id not in (select id from ...)ÕâÑùµÄÌõ¼þ²»ÊǺܷ½±ã£¬Ã¿´ÎÎÒ¶¼ÊǰÑÌõ¼þIDÊÂÏÈÈ¡µ½Ò»¸öÊý×éÀȻºóÓà !Arr.Contains(c.Id)ÕâÑù´¦Àí£¬½ñÌìͻȻ·¢ÏÖÕâÑùºÃɵ£¬Æäʵ¿ÉÒÔÍêȫֱ½ÓÓÃlinqд³ÉÒ»¾ä£¬Ìù¸öʾÀýÔÚÕâÀÒԺ󱸲é
from a in TableA where !(fr ......
in µÄ»°£¬ Èç¹ûÊÇnull ¾Í²»±È½ÏÁË£¬¼È²»ÊÇin Ò²²»ÊÇ not in
existsµÄ»° ÒòΪÓà = ¼ÓÔÚÌõ¼þÀï±È½ÏÁË£¬ËùÒÔ null ÊÇ not exists
select *
from pricetemp
where cast(ÉÌÆ·¥³ー¥É as varchar(10))not in(
select shohin_cd
&nbs ......
<%@ Page Language="C#" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace ="System.Text" %>
<%@ Import Namespace="System.Data" %>
<%
for (int i = 0; i <= 10; i++)
......
ADO.NET³ÌÐòÉè¼ÆÄ£ÄâÌâ(¹²206Ìâ)
1
ADO.NET Ä£ÐÍÖеÄÏÂÁÐÄÄЩ¶ÔÏóÊôÓÚConnected ¶ÔÏó
A. Connection
B. DataAdapter
C. DataReader
D. DataSet
ÕýÈ·´ð°¸:ABC
2
ÔÚADO.NET ÖÐ,Ϊ·ÃÎÊDataTable ¶ÔÏó´ÓÊý¾ÝÔ´ÌáÈ¡µÄÊý¾ÝÐÐ.¿ÉʹÓÃDataTable ¶ÔÏóµÄ_______ÊôÐÔ.
A. Rows
B. Columns
C. Constraints
D. Data ......
ASP.NETµÄÒ³Ãæ³õʼ»¯ÓëʼþÏê½â
Ò»¡¢³õʼ»¯
¡¡¡¡·µ±Ò³Ãæ±»Ìá½»ÇëÇóµÚÒ»¸ö·½·¨ÓÀÔ¶Êǹ¹Ô캯Êý¡£Äú¿ÉÒÔÔÚ¹¹Ô캯ÊýÀïÃæ³õʼһЩ×Ô¶¨ÒåÊôÐÔ»ò¶ÔÏ󣬲»¹ýÕâʱºòÒòÎªÒ³Ãæ»¹Ã»Óб»ÍêÈ«³õʼ»¯ËùÒÔ¶àÉÙ»áÓÐЩÏÞÖÆ¡£ÌØ±ðµØ£¬ÄúÐèҪʹÓÃHttpContext¶ÔÏó¡£µ±Ç°¿ÉÒÔʹÓõĶÔÏó°üÀ¨QueryString, FormÒÔ¼°Cookies¼¯ºÏ£ ......