ASP.NET的ACCESS数据库操作类
//private string datapatch = ConfigurationSettings.AppSettings["acessconn"];//数据库地址
private string datapatch = "db/global.asa";//数据库地址
///
/// 取得dataset
//
/// 查询语句
///
public DataSet GetDataSet(string Commandtext)
{
string strConnection = "Provider=Microsoft.Jet.OLEDB.4.0; " +
"Data Source=" + Server.MapPath(datapatch);
string strCommandText = Commandtext;
OleDbConnection myConnection = new OleDbConnection(strConnection);
myConnection.Open();
OleDbDataAdapter myAdpater = new OleDbDataAdapter(strCommandText,myConnection);
OleDbCommandBuilder myBuilder = new OleDbCommandBuilder(myAdpater);
DataSet myDataset = new DataSet();
myAdpater.Fill(myDataset);
myConnection.Close();
return myDataset;
}
///
/// 取得表
///
/// 查询语句
///
public DataTable GetDataTable(string Commandtext)
{
string strConnection = "Provider=Microsoft.Jet.OLEDB.4.0; " +
"Data Source=" + Server.MapPath(datapatch);
string strCommandText =Commandtext;
OleDbConnection myConnection = new OleDbConnection(strConnection);
myConnection.Open();
OleDbDataAdapter myAdpater = new OleDbDataAdapter(strCommandText,myConnection);
OleDbCommandBuilder myBuilder = new OleDbCommandBuilder(myAdpater);
DataSet myDataset = new DataSet();
myAdpater.Fill(myDataset);
DataTable mytable = myDataset.Tables[0];
myConnection.Close();
return mytable;
}
///
/// 取得某行的某列的值
///
/// 列的名称
/// 所属表名
/// 表的主键
/// 列所属的主键值
///
public string GetDataColum(string strColumnName,string strTableName,string strColumnkey,string strColumnValue)
{
string strConnection = "Provider=Microsoft.Jet.OLEDB.4.0; " +
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// compile with: /EHsc
#import "msadox.dll" no_namespace
#include "iostream"
using namespace std;
inline void TESTHR(HRESULT x) {if FAILED(x) _com_issue_error(x);};
int main() {
if (FAILED(::CoInitialize(NULL)) )
return -1;
&n ......
只读目录，
C:\>attrib +A +S +H +R testdir
C:\>attrib testdir
A SHR C:\testdir
(1)VC6.0的执行结果：
***********test stat***********************
file [c:\testdir] exists!
file [c:\testdir] is directory!
file [c:\testdir] can be read!
file [c:\testdir] can n ......
熟悉SQL SERVER 2000的数据库管理员都知道，其DTS可以进行数据的导入导出，其实，我们也可以使用Transact-SQL语句进行导入导出操作。在Transact-SQL语句中，我们主要使用OpenDataSource函数、OPENROWSET 函数，关于函数的详细说明，请参考SQL联机帮助。利用下述方法，可以十分容易地实现SQL SERVER、ACCESS、EXCEL数据转换� ......
首页：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head ......
如何在 Access 中插入一条新的记录时,预先知道他的自动编号ID呢?
这个问题困扰了我很久
后来我想了一个很笨办法
就是先插入一条 随意的数据 当然里面有有一个你实现预定好的标识
比如
insert into cmd (classID,cmdType,cmd) values('temp','temp','temp')
然后找到它 读取它的ID
select * from cmd where classID ......
