sqlserver连接及设置

SQLSERVER数据库连接的配置及数据集的设置

HRESULT hr =S_FALSE;
_RecordsetPtr m_QryRcdSet;
 _ConnectionPtr m_pConnection;
 hr =m_pConnection.CreateInstance("ADODB.Connection");
 if (FAILED(hr))
  return FALSE;

 try
 {
  m_pConnection->ConnectionTimeout =8;

  CString strConnect = "Provider=SQLOLEDB.1;Data Source=" + （数据库服务器的IP） + ";Initial Catalog=" + (数据库的名称)+ ";User ID="
   + （用户名）+ "; PWD=" +（密码）;

  m_pConnection->Open(_bstr_t(strConnect),"","",adModeUnknown);
   }
 catch(_com_error e)///捕捉异常
 {
  AfxMessageBox("数据库连接失败!" +CString(e.ErrorMessage()));
  ASSERT(FALSE);
  return FALSE;
 }

 hr =m_QryRcdSet.CreateInstance("ADODB.Recordset");
 if (FAILED(hr))
  return FALSE;
 try
 {
  m_QryRcdSet->CursorType =adOpenStatic;
  m_QryRcdSet->CursorLocation =adUseClient;
  hr = m_QryRcdSet->Open(_bstr_t(SqlStr),_variant_t((IDispatch *)m_pConnection, true), adOpenDynamic, adLockPessimistic, adCmdText);
  ADO_LONGPTR count =m_QryRcdSet->GetRecordCount();
  if(count > 0)
   m_QryRcdSet->MoveFirst();
 }
 catch(_com_error e)///捕捉异常
 {
  e.Description();
  AfxMessageBox(e.Description());
  AfxMessageBox("数据库连接失败!" + CString(e.ErrorMessage()));
  ASSERT(FALSE);
  return FALSE;
 }

在stdafx.h文件中加入以下语句：
#import "c:\program files\common files\system\ado\msado15.dll" no_namespace rename("EOF","adoEOF")