VS2008C++利用ADO访问数据库

stdafx.h中

#pragma once

#include "targetver.h"

#include <stdio.h>
#include <tchar.h>

#import"C:\Program Files\Common Files\System\ado\msado15.dll" no_namespace rename("EOF","rsEOF")
// TODO: reference additional headers your program requires here
主程序中（以下代码修改自孙鑫VC++深入详解）

 

代码

#include  " stdafx.h "
#include < iostream >
using   namespace  std;


int  _tmain( int  argc, _TCHAR *  argv[])
{
     int  end;
    CoInitialize(NULL);
    _ConnectionPtr pConn(__uuidof(Connection));
    _RecordsetPtr pRst(__uuidof(Recordset));
    pConn -> ConnectionString = " Provider=SQLOLEDB.1;Password=finally;Persist Security Info=True; User ID=sa;Initial Catalog=pubs " ;
    pConn -> Open( "" , "" , "" ,adConnectUnspecified);
    pRst = pConn -> Execute( " select * from authors " ,NULL,adCmdText);
     while ( ! pRst -> rsEOF)
    {
        cout << ((_bstr_t)pRst -> GetCollect( " au_lname " )) << endl;;
        
        pRst -> MoveNext();
    }
    pRst -> Close();
    pConn -> Close();
    pRst.Release();
    pConn.Release();
    CoUninitialize();
    


    cin >> end;
     return   0 ;
}