VC修改Access密码
void ModifyDBCode()
{
CString strPath;
::GetModuleFileName(GetModuleHandle(NULL),strPath.GetBuffer(256),256);
strPath.ReleaseBuffer();
int flag=strPath.ReverseFind('\\');
int size=strPath.GetLength();
strPath.Delete(flag,size-flag);
strPath= strPath+ _T("\\test.mdb"); //数据库名称
CString strConn=_T("Provider=Microsoft.ACE.OLEDB.12.0;User ID=Admin;Data Source=");
CString buf=strPath;
ASSERT(buf != _T(""));
strConn+=buf;
strConn+=_T(";Jet OLEDB:Database Password = ");
strConn+= g_strPassword;
strConn+=_T(";Mode=Share Deny Read|Share Deny Write"); // du zhan fang shi da kai
CADODatabase pAdoDb;
pAdoDb.SetConnectionString(strConn);
if(!pAdoDb.Open()) return;
CString strExe = _T("ALTER DATABASE PASSWORD [");
strExe += m_strNewCode;
strExe += _T("] [");
strExe += g_strPassword;
strExe += _T("]");
pAdoDb.Execute(strExe);
}
相关文档：
if (currentPage ==1) {
//如果当前页为第1页
sql ="select top "+pageSize+" * from Table";
} else {
int start =(currentPage -1)*pageSize;
sql ="select top "+pageSize+" * from Table where ID not in (select top "+start+" ID from Table)";
} ......
C#连接连接Access
首先看一个例子代码片断:
程序代码:
--------------------------------------------------------------------------------
using System.Data;
using System.Data.OleDb;
......
string strConnection="Provider=Microsoft.Jet.OleDb.4.0;";
strConnection+=@"Data Source=C:\BegASPNET\Northwin ......
上网google了一下，看了几个人的帖子，大概明白了是什么意思。
如果一个用户的IP在最近一段时间内多次由于密码错误登录失败，那么系统就会把这个用户封掉，submit或者mail就会提示Access denied.
这本是一个安全措施，但是没想到poj开通所谓的"公网加速"之� ......
查询语句只要这样写,就可以随机取出记录了
SQL="Select top 6 * from Dv_bbs1 where isbest = 1 and layer = 1 order by newID() desc"
在ACCESS里
SELECT top 15 id from tablename order by rnd(id)
SQL Server：
Select TOP N * from TABLE Order By NewID()
Access：
Select TOP N * from TABLE Order By Rnd(ID ......
