public Map<Integer, String> dimMapper(String tableName, String keyColumn,
			String valueColumn) {
		Map<Integer, String> map = new HashMap<Integer, String>();
		String sql = "select " + keyColumn + "," + valueColumn + " from "
				+ tableName + "";
		ResultSet rs = null;
		try {
			rs = executeSelectQuery(sql);
			while (rs.next()) {
				map.put(rs.getInt(keyColumn), rs.getString(valueColumn));
			}
		} catch (SQLException e) {
			e.printStackTrace();
			return null;
		}
		try {
			rs.close();
			stmt.close();
		} catch (SQLException e) {
			e.printStackTrace();
			return null;
		}
		return map;
	}