vc下通过ODBC的方式操作Excel文件

CDatabase database;
 CString sDriver = "MICROSOFT EXCEL DRIVER (*.XLS)"; // Excel安装驱动
 CString sExcelFile = fileName;//"c:\\demo.xls"; // 要建立的Excel文件
 CString sSql;
  TRY
 {
  // 创建进行存取的字符串
  sSql.Format("DRIVER={%s};DSN='';FIRSTROWHASNAMES=1;READONLY=FALSE;CREATE_DB=\"%s\";DBQ=%s",sDriver, sExcelFile, sExcelFile);

  // 创建数据库 (既Excel表格文件)
  if( database.OpenEx(sSql,CDatabase::noOdbcDialog) )
  {
   // 创建表结构(姓名、年龄)
   sSql = "CREATE TABLE demo (Name TEXT,Age NUMBER)";
   database.ExecuteSQL(sSql);

   // 插入数值
   sSql = "INSERT INTO demo (Name,Age) VALUES ('徐景周',26)";
   database.ExecuteSQL(sSql);

   sSql = "INSERT INTO demo (Name,Age) VALUES ('徐志慧',22)";
   database.ExecuteSQL(sSql);

   sSql = "INSERT INTO demo (Name,Age) VALUES ('郭徽',27)";
   database.ExecuteSQL(sSql);

   sSql = "CREATE TABLE demo1 (Name TEXT,Age NUMBER,Sex TEXT)";
   database.ExecuteSQL(sSql);

   // 插入数值
   sSql = "INSERT INTO demo1 (Name,Age,Sex) VALUES ('徐景周',26,'男')";
   database.ExecuteSQL(sSql);

   sSql = "INSERT INTO demo1 (Name,Age,Sex) VALUES ('徐志慧',22,'男')";
   database.ExecuteSQL(sSql);

   sSql = "INSERT INTO demo1 (Name,Age,Sex) VALUES ('郭徽',27,'女')";
   database.ExecuteSQL(sSql);

  }

  // 关闭数据库
  database.Close();
 }
 CATCH_ALL(e)
 {
  TRACE1("Excel驱动没有安装: %s",sDriver);
 }
 END_CATCH_ALL;

 //通过ODBC往excel数据库中写入数据
  TRY
 {
  // 创建进行存取的字符串
  sSql.Format("DRIVER={%s};DSN='';FIRSTROWHASNAMES=1;READONLY=FALSE;CREATE_DB=\"%s\";DBQ=%s",sDriver, sExcelFile, sExcelFile);
  if( database.OpenEx(sSql,CDatabase::noOdbcDialog) )
  {
   sSql = "select * from demo";
   CRecordset recordSet(&database);
   recordSet.Open(CRecordset::forwardOnly, sSql);
   CString strValue1, strValue2;
   while (!recordSet.IsEOF())
   {
    //读取Excel内部数值
    recordSet.GetFieldValue("Name", strValue1);
    recordSet.GetFieldValue("Age", strValue2);

   }
  }
  }
  CATCH_ALL(e)
 {
  TRACE1("Excel驱动没有安装: %s",sDriver);
 }
 END_CATCH_ALL;