Store an Image(OLE Object) into Access Data Base
Store an Image(OLE Object) into Access Data Base
C# Winform application Store an Image into Access Data Base
用以下方法
/// 2010-02-26 Forever
private void SaveImageInDataBase()
{
OleDbConnection conn = null;
try
{
string strDBFile = Environment.CurrentDirectory + @"\Test.mdb";
string connstr = "Jet OLEDB:Database Password=;Data Source='" + strDBFile + "';Password=;Provider='Microsoft.Jet.OLEDB.4.0'";
conn = new OleDbConnection(connstr);
OleDbCommand cmd;
String strimg = Environment.GetFolderPath(Environment.SpecialFolder.Desktop) + "\\test2.bmp";
//Read Image Bytes into a byte array
//Initialize byte array with a null value initially.
byte[] imageData = null;
//Use FileInfo object to get file size.
FileInfo fInfo = new FileInfo(strimg);
&nb
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uses
ADODB;
procedure TForm1.SetupTable(sender:tobject);
Var
adocon1:TADOConnection;
strSQL:string;
Const
SConnectionString= 'Provider=Microsoft.Jet.OLEDB.4.0;Data Source=%s;'
+'Jet OLEDB:Database Password=%s;';
begin
adocon1:=TADOConnection.creat(self);
adocon1.ConnectionString:=format(S ......
Access数据库操作类AccessHelper
using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.OleDb ......
在SQL Server 内查询Access 数据, 并将数据保存到SQL Server
'Jet OLEDB:Database Password=; /*Access 密码*/
Data Source=C:\temp\Test.mdb; /*Access 数据库路径*/
Password=;/*Access工作组密码*/
1. 查询Access 表内所有数据
SELECT *
from OPENDATASOURCE
('Microsoft.Jet.OLEDB.4.0',
'Jet OLEDB:Database ......
Access、Hybrid和Trunk三种模式的理解
预备知识：
Tag，untag以及交换机的各种端口模式是网络工程技术人员调试交换机时接触最多的概念了，然而笔者发现在实际工作中技术人员往往对这些概念似懂非懂，笔者根据自己的理解再结合一个案例，试图向大家阐明这些概念
untag就是普通的ethernet报文，普通PC机的网卡是可以识别这 ......
