int main()
{
	Environment * env;
	Connection  * conn;
	Statement * stmt;
	ResultSet * resultSet;

	try
	{
		env  = Environment::createEnvironment(Environment::OBJECT);
		conn = env->createConnection("xxx", "xxx", "xxx");

		stmt = conn->createStatement("select * from training_security");
		resultSet = stmt->executeQuery();

		vector<MetaData> selectcols = resultSet->getColumnListMetaData();

		int columnCount = selectcols.size();
		for (int i = 0; i < columnCount; i++)
		{
			cout << "column name" << selectcols[i].getString(MetaData::ATTR_NAME) << endl;
			cout << "column type" << selectcols[i].getInt(MetaData::ATTR_DATA_TYPE) << endl;
		}
		
	}
	catch (SQLException &ex)
	{//cleanup
		cout << "Error, cleaning up..." << ex.getMessage() << endl;	
	}

	// Close ResultSet and Statement
    stmt->closeResultSet(resultSet);
    conn->terminateStatement(stmt);
	env->terminateConnection(conn);
	Environment::terminateEnvironment(env);
}