SQL½Å±¾´´½¨±í
if exists(select * from sysobjects where name='atzk')--ÅжÏÊÇ·ñ´æÔڴ˱í
drop table atzk
go
create table atzk
(
nid int identity(1,1) primary key,--nid×Ô¶¯±àºÅ£¬²¢ÉèΪÖ÷¼ü¡£
mytitle varchar(50) not null,--֪ͨµÄ±êÌâ¡£
mycontents varchar(200)--·¢²¼Í¨ÖªµÄÄÚÈÝ¡£
)
Ïà¹ØÎĵµ£º
¶¯Ì¬Óï¾ä
1 :ÆÕͨSQLÓï¾ä¿ÉÒÔÓÃexecÖ´ÐÐ
Select * from tableName
exec('select * from tableName')
exec sp_executesql N'select * from tableName' -- Çë×¢Òâ×Ö·û´®Ç°Ò»¶¨Òª¼ÓN
2:×Ö¶ÎÃû£¬±íÃû£¬Êý¾Ý¿âÃûÖ®Àà×÷Ϊ±äÁ¿Ê±£¬±ØÐëÓö¯Ì¬SQL
declare @fname varchar(20)
set @fname = 'FiledName'
Select @fnam ......
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SqlClient;
namespace ConsoleApplication4
{
class Program
{
static void Main(string[] args)
{
//sqlserverÉí·ÝÑéÖ¤
//string sqlconn = "ser ......
½ñÌìÎÒѧϰÁËsqlµÄ¼òµ¥²éѯÓï¾ä£¬
һЩ»ù±¾µÄ¸ÅÄ
1 ϵͳȨÏÞ£ºÊý¾Ý¿âÖеĶÔÏó£¬ ±í£¬´´½¨±í£¬É¾³ý±í
2 ¶ÔÏóȨÏÞ£º¶ÔÊý¾ÝµÄÔö¡¢É¾¡¢¸Ä¡¢²é¡ ......
sqldataadapterÊʺÏÓÃÔÚ²éѯ½Ï¶à×Ö¶Îʱ.....
string sou = "select * from art where content like '%" + TextBox1.Text + "%'";
SqlDataAdapter da = new SqlDataAdapter(sou, conn);
DataSet ds = new DataSet();
da.Fill(ds);
if (ds.Tables[0].rows.count==0)
{
Response.Write("ûÓмǼ£¡");
}
else
{
......