vc ²Ù×÷oracle ÓôÃÆ°¡

C/C++ code:

try
{
m_ADOConn.CreateInstance(__uuidof(Connection));
CString connstr="Provider=OraOLEDB.Oracle.1;User ID=KNS;Password=KNS;Data Source=OKDC;";//oracle
m_ADOConn->Open( _bstr_t(connstr),"","", adModeUnknown);//Á¬½Ó³É¹¦

m_pADOSet.CreateInstance(__uuidof(Recordset));

this->m_bConnSuccess=true;
return true;
}
// Catch Exceptions
catch(_com_error &e)
{
CString err;
err.Format("%s", (char*)(e.Description()) );
//AfxMessageBox(err);
this->m_bConnSuccess=false;//Öóɹ¦±ê־Ϊ¼Ù
return false;
}

CString strSQL = "select testvc.aa from testvc";
if ( m_ADOConn->State == adStateOpen)
m_ADOConn->Close();
try
{
m_ADOConn->Open(strSQL, m_ADOConn.GetInterfacePtr(), adOpenDynamic, adLockOptimistic, adCmdText);
return TRUE;
}
catch(_com_error &e)
{
CString err;
err.Format("ADO Error: %s",(char*)e.Description());
AfxMessageBox(err);
return FALSE;
}


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