使用C++连接数据库

#import "C:\Program Files\Common Files\System\ado\msado15.dll" no_namespace rename("EOF","IsEOF")
#include<iostream>
using namespace std;
class ConnectOracle
{
    public:
         ::_ConnectionPtr m_pConnection;
         ::_RecordsetPtr m_pRecordset;
         ::_CommandPtr m_pCommand;
    public:
        ConnectOracle();
        void OnInitADOConn();
};

void ConnectOracle::OnInitADOConn()
{
    ::CoInitialize(NULL);
    HRESULT hr;
    try
    {
        hr = m_pConnection.CreateInstance(__uuidof(Connection));
        
        _bstr_t strConnect = "driver = {SQL Server};Server = 192.168.1.152;DATABASE = QSSHGIS;UID=FOREVERGEO;PWD=FOREVERGEO";
        hr = m_pConnection->Open(strConnect,"","",adModeUnknown);
        if (hr == S_OK)
        {
            cout<<"连接数据库成功！"<<endl;
        }
    }
    catch (_com_error e)
    {
        cout<<"连接数据库失败！\r\n错误信息："<<e.Description()<<endl;
    }
}