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C#ʵÏÖAccessµ¼Èëµ¼³öExcel

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1.Óõ½µÄExcel±íµÄ¸ñʽ¼°ÄÚÈÝ
 
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 OleDbConnection con = new OleDbConnection();
try
{
OpenFileDialog openFile = new OpenFileDialog();//´ò¿ªÎļþ¶Ô»°¿ò¡£
openFile.Filter = ("Excel Îļþ(*.xls)|*.xls");//ºó׺Ãû¡£
if (openFile.ShowDialog() == DialogResult.OK)
{
string filename = openFile.FileName;
int index = filename.LastIndexOf("\\");//½ØÈ¡ÎļþµÄÃû×Ö
filename = filename.Substring(index + 1);
conExcel.ConnectionString = "Provider=Microsoft.Jet.Oledb.4.0;Data Source=" +
Application.StartupPath + "\\Appdata.mdb";
//½«excelµ¼Èëaccess
//distinct :ɾ³ýexcelÖØ¸´µÄÐÐ.
//[excelÃû].[sheetÃû] ÒÑÓеÄexcelµÄ±íÒª¼Ó$
//where not in : ²åÈë²»ÖØ¸´µÄ¼Ç¼¡£

string sql = "insert into Users2(Óû§±àºÅ,Óû§ÐÕÃû) select distinct * from [Excel 8.0;database=" +
filename + "].[name$] where Óû§±àºÅ not in (select Óû§±àºÅ from Users2) ";
OleDbCommand com = new OleDbCommand(sql, con);
con.Open();
com.ExecuteNonQuery();
MessageBox.Show("µ¼ÈëÊý¾Ý³É¹¦", "µ¼ÈëÊý¾Ý", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
finally
{
con.Close();
}
 
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OleDbConnection con = new OleDbConnection();
try
{
SaveFileDialog saveFile = new SaveFileDialog();
saveFile.Filter = ("Excel Îļþ(*.xls)|*.xls");//Ö¸¶¨Îļþºó׺ÃûΪExcel Î


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AccessµÄDBHelper.cs

using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.OleDb;
using System.Configuration;
namespace TaobaoDAL
{
public class DBHelper
{
//Òýµ¼Êý¾Ý¿âÁ¬½ÓÊý¾Ý¿âµ÷ÓÃWeb.ConfigÎļþ
private static OleDbConnection conn ......

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²åÈë¡¢¸üС¢=Æ¥Åä Êý¾Ýʱ£¬Îı¾ÀàÐÍÈçÓÃ""À¨ÆðÀ´£¬Öмä¿ÉÒÔ ......

ÓÃC#¶ÁSQL SERVERµ½¿ØÖÆÌ¨µÄ¼òµ¥Ê¾Àý

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 ......

C#²éѯÊý¾Ý¿â°Ñ½á¹ûÊä³öµ½XMLµÄÀý×Ó

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SqlClient;
using System.Data;
namespace ConsoleApplication4
{
class Program
{
static void Main(string[] args)
{
//sqlserverÉí·ÝÑéÖ¤
//s ......
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